complete ejectors
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Engineering since 1904
MARITIME DIESEL ELECTRIC · 10308 West McNab Road · Tamarac, FL 3321 · Phone +1 (954) 597-7602 · Fax +1 (954) 597-7608 ·www.mardiesel.com [email protected]
0. Ellehammer A/S
Ellehammer A/S is a modern engineering company and a leading worldwide supplier of high
quality marine products, with an export rate above 80%. All products are manufactured
individually in close cooperation with both customers and a wide range of sub-contractors,and fulfill all demands from respective classification societies.
Ellehammer produce Ejectors, Emergency fire pumps, Transfer pumps and Electrical control
systems.
The Ellehammer name has been manifested as a reliable, innovative and constructive brandever since 1904. Where the company was founded by the Danish inventor J.C.H. Ellehammer,who amongst several inventions made the first powered flight in Europe in 1906.
Ejectors
This is a static pump, for suction of any
substance, motivated by a (Centrifugal)-pump. The ejector can be used for all suction
purposes. Ellehammer Ejectors are
customized to every customer for optimal
performance.
Emergency fire pumps
Fire pump for offshore industry e.g. FPSO,LNG, FSO and rigs.
Transfer pumps
Hydraulic driven pump for transfer of fuel oil.
Electrical control systems
Customized control panels for engine or
pump systems.
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Engineering since 1904
MARITIME DIESEL ELECTRIC · 10308 West McNab Road · Tamarac, FL 3321 · Phone +1 (954) 597-7602 · Fax +1 (954) 597-7608 ·www.mardiesel.com [email protected]
Table of Content
0. Ellehammer A/S
1. Introduction 1.1 Ejectors General knowledge
1.1.1Ejector parts1.1.2 Functionality
1.1.3 Motive mediums
1.1.4 Suction mediums1.2 Advantages and disadvantages
1.3 Areas of installation
1.4 Facts about Ellehammer ejectors1.5 Reference list
2. Product Range 2.1 Ellehammer ejector types
2.2 Ejector type details
2.3 Type designation
2.4 Nozzle material3. Ejector Capacity Diagrams
3.1 In-line ejectors
3.2 B-type ejectors3.3 Sewage ejectors
3.4 Transportable ejectors
3.5 Priming ejectors3.6 Desalt ejectors
3.7 Venting ejectors
3.8 BV-type ejectors3.9 Diagram data
4. Design and Installation
4.1 Designing for efficiency4.2 Design with pipes diagrams
4.3 Designing with ejector types - Gauges, valves and strainers
4.4 Designing with pumps4.5 Designing with ballast ejectors
4.6 Ejector performance diagram
4.7 Start up & After sales4.8 Error correction
5.-12.Ejector Types: Performance Diagrams & Dimensional Sketches 5. In-line ejectors6. Side suction ejectors
7. Sewage ejectors
8. Portable ejectors9. Priming ejectors
10. Desalt ejectors11. Venting ejectors
12. BV ejectors
13. Inquiry form
14. Representatives
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Engineering since 1904
MARITIME DIESEL ELECTRIC · 10308 West McNab Road · Tamarac, FL 3321 · Phone +1 (954) 597-7602 · Fax +1 (954) 597-7608 ·www.mardiesel.com [email protected]
1. Introduction
In this booklet you will find information about Ellehammer ejectors. The booklet provides informationfor selecting and installing ejectors.
This booklet gives an overview of our standard ejectors. Requests for special ejectors can be retrieved
from our sales department.
Ellehammer has many years experience with ejectors, which has resulted in high performance andhigh quality of every ejector. Ellehammer ejectors are specially designed for every customer need foroptimal performance, it is especially the dimensions of bore and nozzle which is essential.
A table of content is found behind the index page.
This first section of the booklet gives an Introduction to ejectors.
The Product range section provides an overview of Ellehammers standard ejectors and describes theadvantages of each ejector. This section will also guide you to select the best ejector for individualusage.
The section Capacity range contains diagrams of each ejector type, which provides an overview ofindividual ejector capacity. This section can therefore help to select an ejector, however, the finalselection will be performed by Ellehammer sales department in order to calculate the optimaldimensions of bore and nozzle.
The section Design & Installation will guide you towards a successful installation of an ejector. Firstsome general guidelines will be explained in order to achieve maximum performance of the ejector.This section also describes how to design and install ejectors with ballast tanks.
The end of this section contains guidelines for error correction, these guidelines can help you topinpoint errors and solve common problems.
Details of the individual ejectors can be found in the section Performance diagrams & Dimensional sketches. This section contains an overview of the different sizes of each ejector type. Theperformance diagrams clarify operating details of specific ejectors. The dimensional sketches informsof the most important dimensions needed for designing and installing an ejector into a system.
The section which contains Inquiry form will help you to provide basic information for inquiries.
Ellehammer A/S has a world wide network of representatives of ejectors, information about these can
be found in the section Representatives.
Further information can be received by contacting our sales department; contact details in the orange
bar at the page footer.
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Engineering since 1904
MARITIME DIESEL ELECTRIC · 10308 West McNab Road · Tamarac, FL 3321 · Phone +1 (954) 597-7602 · Fax +1 (954) 597-7608 ·www.mardiesel.com [email protected]
1.1 Ejectors General knowledge
1 3
2
1.1.1 Ejector parts An ejector consist of 3 parts dependent on ejector size
1. House
The house is the central part of the ejector, containing the suction and motive inlet, this
is also where the suction capabilities emerge.2. Diffuser
The diffuser is situated after the house or the intermediate pipe. The diffuser containsthe process of mixing and ejecting the motive and sucked medium.The inner diameter of the diffuser can vary by specific performance requirements.
3. Nozzle The nozzle is mounted in the house with the purpose of regulating the motive jet
stream.
The nozzle can vary in dimensions for achieving specific performance requirements.
The nozzle is made in stainless steel.
1.1.2 Functionality Ejectors are pumps of a very simple construction. In principle an Ellehammer ejector works by means
of a high velocity jet of medium (water or gas) shooting through a circular duct, which will carry the
surrounding fluid with it. In this duct, the jet and suction fluid are gradually mixed while increasing thepressure. This pressure will further increase in the diffuser while the velocity is lowered to a level
suited for normal piping.
Having no moving parts, ejectors are sturdy and need no maintenance. They are contrary tocentrifugal pumps always self-priming, and may be designed to create almost perfect vacuum.
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Engineering since 1904
MARITIME DIESEL ELECTRIC · 10308 West McNab Road · Tamarac, FL 3321 · Phone +1 (954) 597-7602 · Fax +1 (954) 597-7608 ·www.mardiesel.com [email protected]
1.1.3 Motive mediums The motive medium drives the ejector. This medium is always injected in the ejector at higher
pressure than atmosphere. Several different mediums can be used as motive mediums. The mostcommon are water and air; less common are exhaust and gasses.
Basically, the ejector can be motivated by any medium up to a certain viscosity level.
Water is the most efficient medium to drive the ejector.
Air can be a preferable medium to use when pumping gasses.
1.1.4 Suction mediums Many other applications exist for ejectors, where a liquid (or slurry) needs to be pumped or a vacuum
created using either liquid or gas as the motive source. There is one exception, though; pumping ofliquid using compressed gas will usually be too inefficient to be of practical use.
Solids Liquids Gasses
Mediums
Small particles Sewage Fuel/Oil Water Steam Smoke Air
Solids Small particles
Include mediums such as sand, powder and coal powder.
Liquids Sewage
Sewage is characterised by a combination of water and slurry, this includes all sorts of sewagewater and bilge.
Fuel and oil
For transferring and stripping of all types of fuel and all types of oil, using an ejector eliminates
explosive risk.Water
For removal of any type of water from e.g. ballast tanks, cargo tanks
Gasses
Gas
For emptying of gasses from ballast tanks or other tanks. The ejector has no moving part whicheliminates explosive risks.
Smoke
Ejectors can be used for ventilating and suction of smoke, this can be relevant in the engine
rooms.
Air/vacuum For priming of centrifugal pumps or other vacuum purposes.
1.2 Advantages and disadvantages of ejectors Advantages
No maintenance
Various suction purposes
Long lifetime
Extreme robust
Disadvantages
Low efficiency
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Engineering since 1904
MARITIME DIESEL ELECTRIC · 10308 West McNab Road · Tamarac, FL 3321 · Phone +1 (954) 597-7602 · Fax +1 (954) 597-7608 ·www.mardiesel.com [email protected]
1.3 Areas of installation Ellehammer ejectors are used in a large range of applications in different industries. Main industriesare the maritime industry and process industry.
Process industry:
ChemicalPetrochemical
Petroleum
Food and Drugs
Marine industry: Stripping
systems Vacuumsystems Ventilation
systems Mixingsystems
Maritime industry
The following picture illustrates where ejectors can be installed on vessels.
Filling and stripping of ballast tanks.
Stripping of bilges from the bottom of the vessel.
Stripping of all sorts of mediums from cargo holds. Includes Oil, Gas, Water
and sewage.
Stripping of bilge from chain lockers
Ejectors in the engine room can both be used for stripping of bilge and for
ventilation of exhaust or other gasses.
Incinerators Removal of ashes from incinerators
Multiple use Portable ejectors are designed for multiple suction purposes. These ejectors
can be installed with hoses, in order to utilize the ejector various places onthe ship.
Portable ejectors are favourable to use where various suction quantities are
low or where coarse vacuum cleaning are needed.Peak tanks Peak tanks are situated either in the front or the rear of the vessel. Ejectors
can both be used for stripping and filling these tanks.Priming Priming of centrifugal pumps. This ejector creates vacuum which will
initiate centrifugal pumps.
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Engineering since 1904
MARITIME DIESEL ELECTRIC · 10308 West McNab Road · Tamarac, FL 3321 · Phone +1 (954) 597-7602 · Fax +1 (954) 597-7608 ·www.mardiesel.com [email protected]
1.4 Facts about Ellehammer ejectors This section will inform of basic product information about Ellehammer ejectors
Achievements
Production number: Over 70,000 delivered ejectors
Ejector size: Produced ejectors with capacity up to 10,000 m3/h.
Expertise: Providing customized ejectors with capacity up to 770 m3/h.
Reputation: Recognized as one of the most flexible ejector manufactures.
Experience Over 40 years, since 1962.
Ejector production Code of conduct
Certificates: Ellehammer has close cooperation with many certification agencies and can offer all
types of certification. The most commonly used are DNV, BV, GL and Lloyds register.
Flanges: Ellehammer can offer all types of flanges. The most common used are to DIN Pn 10,
ANSI, JISLifetime: In general the lifetime of our ejectors are very high, some might even outlive the
lifetime of the vessel.
The lifetime can be reduced if the ejector is used to suck different kinds of solids,
because they can have a wearing effect.
Materials: Ellehammer offer ejectors produced in four different materials:
Bronze.
Aluminium-bronze.
Cast-iron, but we recommend a bronze type for maritime usage.
Stainless steel - can be offered by special request.
Performance: All ejector types are tested at Our test facility; therefore every ejector has the high
Ellehammer quality. We offer to test the performance of individual ejectors.
Quality: Ellehammer has a long time experience developing, producing and testing ejectors.
Ellehammer always focus on high performance and high material durability.
Therefore Ellehammer can ensure high quality of every ejector.
Test: Every ejector is tested at our test plant in Glostrup Denmark. Every ejector is tested
for pressure and watertight performance. The ejector is pressure tested at 16 bars;
this ensures the high Ellehammer quality of every ejector.
Technology: All ejectors are designed by Ellehammer. Our R&D department is always searching
for new ways to improve ejectors with focus on performance, material and usage.
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Engineering since 1904
MARITIME DIESEL ELECTRIC · 10308 West McNab Road · Tamarac, FL 3321 · Phone +1 (954) 597-7602 · Fax +1 (954) 597-7608 ·www.mardiesel.com [email protected]
1.5 Selected references:
Customer Country Customer Country
A.S. Marine Poland Marine Service Germany MSG GmbH Germany
A. De Jong TH B.V. Holland Marine Technic a/s Denmark
A.P. Møller Denmark Mediterranean Shipping Co. Italy
Alfa Laval Copenhagen A/S Denmark Meson AB SwedenAlfa Laval Tumba A/S Sweden MS "Novitas-H" Zehnte R.S.T. Germany
ASHSA Spain Ning Hai Equipment & China
Associate Machinery Pte Ltd. China Nuovi Cantieri Apuania S.p.A. Italy
Astilleros Balenciaga S.A. Spain Odense Staalskibsværft A/S Denmark
Axflow AS Norway Pacific Engineering & Services PTE Ltd. China
Bajk Serwis Sp. z.o.o. Poland PD-Technik GmbH Germany
BOMBAS AZCUE S. A. Spain Peter Döhle Schiffahrts-KG Germany
Bourbon Offshore Surf France Pompe Garbarino S.p.A Italy
Brispes S.L. Spain PROMAT SECURITE France
Cantiere Navale Visentini s.r.l. Italy PumpQuip Engineering PTE Ltd. China
Carnival Cruise Lines plc. USA Rederiet M.H. Simonsen ApS Denmark
COMERCIAL NAVAL CANARIA Spain Ro-Clean Desmi A/S Denmark
Cunard Line USA SEDEF GEMI INSAATI S.A. TurkeyDamen Shipyards Group Holland Skandinavisk Brandteknik A/S Denmark
DC Marine Supply ApS China Stocznia Gdynia S.A. Poland
DELTON ENGINEERING PTE LTD China Stocznia Szczecinska Nowa Poland
Desmi A/S Denmark STX Europe Norway
DESMI GmbH Rotan Pumpengesellschaft Germany Szczecin Ship Repair Yard Gryfia S.A. Poland
Erria A/S Denmark Søby Værft Denmark
Fincantieri Cantieri Navali Italy Tanmarine Denizcilik Ve Tic. Ltd. Sti. Turkey
Gdansk Shiprepair Yard REMONTOWA
S.A.
Poland Tenix Defence Pty. Ltd. Australia
Hamworthy Svanehøj A/S Denmark THORSMINDE Maskinværksted Denmark
Hans Jensen Lubricators A/S Denmark Thyborøn Skibs- & Motor Denmark
HOH Water Technology A/S Denmark VATTENFALL A/S Sweden
Holm Technoscan Denmark Vela International Marine Ltd. UnitedArab Emirates
Hvide Sande Skibs- og Baadebyggeri A/S Denmark Vestergaard Company A/S Denmark
Hyundai Heavy Industries Co. Ltd. Korea Vestværftet Denmark
International Sinoking Co. Limited China VN-Pumpen GmbH & Co. KG Germany
Iron Pump A/S Denmark Volker Nienstädt GmbH & Co. KG Germany
Karstensens Skibsværft A/S Denmark Wärtsilä Danmark A/S Denmark
Kommandor LLC USA Yangzhou Dayang Shipbuilding Co., Ltd. China
Kynde & Toft Maskinværksted Denmark YDC Denizcilik AS Turkey
Larsen & Toubro Ltd. India
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Engineering since 1904
MARITIME DIESEL ELECTRIC · 10308 West McNab Road · Tamarac, FL 3321 · Phone +1 (954) 597-7602 · Fax +1 (954) 597-7608 ·www.mardiesel.com [email protected]
Ejectors for the Marine Industry
Ellehammer A/S is a modern engineering company and a leading worldwide supplier of high quality ejectors for
the maritime industry. All ejectors are customized in close cooperation with our customers, especially ourextensive knowledge gathered through 60 years, will provide you one of the best ejectors on the market.Through our 60 years experience we have developed many ejectors, and can therefore help you with any suctionneed.
Our wide range of ejectors fulfils all demands from respective classification societies.
Applications 1 Cargo tanks and ballast tanks - 1
Peak tanks and chain lockers - 2
Sewage and bilge water - 3
Desalt/Brine systems - 4
2 Transportable - 5
Priming of centrifugal pumps - 6
Ventilation - 7
Advantages Long lifetime and extreme robust
3High reliability
Simple to install and operate
Low maintenance
5 Materials
4Bronze
Aluminium bronze
Stainless steel
Facts
More than 40 years experience
6 More than 70.000 delivered All ejectors are designed, manufactured
and tested in Denmark.
7 Expert in customised ejectors
Key competence
Customization of ejectors to improve
efficiency for your benefit.
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Engineering since 1904
MARITIME DIESEL ELECTRIC · 10308 West McNab Road · Tamarac, FL 3321 · Phone +1 (954) 597-7602 · Fax +1 (954) 597-7608 ·www.mardiesel.com [email protected]
2. Product range This section provides an overview of Ellehammers standard ejectors and describes the advantages of
each ejector. This section will also guide you to select the best ejector for individual usage. hereafterEllehammer sales department will calculate the optimal dimensions for bore and nozzle, so you can
achieve optimal performance of your ejector and your pumping system.
Ellehammer offers also a variety of products to ejectors eg. Additional flanges, hoses and many other
requirements.
2.1 Ellehammer ejector types Ellehammer offers six types of ejectors:
Standard ejectorsIn-line ejectorsWater motivated
Our In-line ejectors have the best efficiency and are therefore our mostcommonly sold ejector type. The motive water is coming from the side andsuction is created In-line.In line ejectors over size 125-150-150 has inspection covers.
Area of use: Ballast tanks, Cargo tanks etc.
More information can be found in section 5
Side suction ejectors
B-type ejectorsWater motivated
Differs in two ways from the In-line ejector. The motive water is coming from
the end and suction is created from the side and it is equipped with an
inspection cover. Ejectors of all makes and designs may be clogged up byparticles. Whereas soft matter normally will pass through the ejector solid
particles larger than the gap between the nozzle and the throat will getcaught in the narrow passage and eventually cause the ejector to cease
pumping. With Ellehammer B-type ejectors the foreign matter can easily be
removed through the inspection cover.Additionally the B-type ejector can be constructed with enlarged gap
between the nozzle and the throat, which makes it suitable for sewage use.
Area of use: Bilges, Engine room, Chain locker etc.
More information can be found in section 6
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Engineering since 1904
MARITIME DIESEL ELECTRIC · 10308 West McNab Road · Tamarac, FL 3321 · Phone +1 (954) 597-7602 · Fax +1 (954) 597-7608 ·www.mardiesel.com [email protected]
Sewage ejectorsS-type ejectorsWater motivated
Are designed for sewage use, this ejector allows large particles to pass
through the ejector. Area of use: Sewage, Bilges, Incinerators etc.
More information can be found in section 7
Portable ejectorsT-type ejectorsWater motivated
Are used where a fixed ejector is not required. Ellehammer produce twodifferent sizes of portable ejectors. These ejectors are connected with Storzcouplings.
Area of use: Cleaning of tanks, several smaller tanks etc.
More information can be found in section 8
Priming ejectors Inch-type ejectors
Air & water motivated
Are used for 2 purposes: Priming of non-self priming centrifugal pumps and
small suction purposes. These ejectors are motivated by air or water. Area of use: Priming of centrifugal pumps, small suction purposes etc. More information can be found in section 9
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Engineering since 1904
MARITIME DIESEL ELECTRIC · 10308 West McNab Road · Tamarac, FL 3321 · Phone +1 (954) 597-7602 · Fax +1 (954) 597-7608 ·www.mardiesel.com [email protected]
Desalt/Brine ejectors
D-type ejectorsWater motivated
Desalt ejectors are specially designed for desalting systems/ Fresh water systems,where the ejector is used to suck brine out of the system. The ejector is thereforeonly a minor part of this system. We deliver many different desalt ejector types,contact us for further information.
Venting ejectors
V-type ejectorsWater motivated
Our venting ejector is specially designed for suction of large amounts of gasses eg
from cargo tanks and engine rooms (CO2).
Air-vacuum ejectorsBV-type ejectorsWater motivated
This type of ejector is ideal for making vacuum. The ejector is motivated
by water and designed to suck varies types of gasses. Area of use: Emptying of gasses from cargo holds, engine rooms etc.
More information can be found in section 10
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Engineering since 1904
MARITIME DIESEL ELECTRIC · 10308 West McNab Road · Tamarac, FL 3321 · Phone +1 (954) 597-7602 · Fax +1 (954) 597-7608 ·www.mardiesel.com [email protected]
E j e c t o r t y p e
I n - l i n e
B - t y p e
S - t y p e
P o r t a b l e
P r i m i n g
V - t y p e
B V - t y p e
D - t y p e
O p e r a t i n g p
r e s s u r e
( B a r )
2 t o 1 2
2 t o 1 2
2 t o 1 2
2 t o 1 2
2 t o 1 2
2 t o 1 2
2 t o 1 2
2 t o 1 2
S u c t i o n c a p a c i t y -
m a x i m u m ( m 3 / h )
7 7
3 5 0
1 2
8 0
2 1 (
a s )
2 8 0 0 ( g a s )
2 5 0 ( g a s )
7 , 5
B
i n e )
S u c t i o n h e i g
h t -
m a x i m u m ( m )
8
8
8
8
-
1 0
-
D e l i v e r y h e i g h t
m a x i m u m ( m )
4 0
4 0
4 0
4 0
-
-
-
-
D e s i g n e d f o r
E
i c i e n c y
F l e x i b i l i t y
S e w a g e
M o b i l i t y
P r i m i n g
V
n t i l a t i o n
A i r v a c u u m
B
i n
L i u i d
/ G a
s
M o t i v e s u b s
t a n c e
i q u i d
L i u i
i q u i d
L i u i d
i q u i d
i q u i / G a s
i q u i d
2.2 Ejector type details
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Engineering since 1904
MARITIME DIESEL ELECTRIC · 10308 West McNab Road · Tamarac, FL 3321 · Phone +1 (954) 597-7602 · Fax +1 (954) 597-7608 ·www.mardiesel.com [email protected]
2.3 Type designation
All ejectors can be specified by two types of numbers. The model number describes a specific ejectortype and size. A different number is marked on every ejector, the serial number.
Model number This number describes a specific ejector measured by 6 numbers. All measurements in millimetre.
Motive Inner diameter of motive inletSuction Inner diameter of suction inletDischarge Inner diameter of discharge outlet
Type B, S, T, BV or none which is equal to in-line ejectors
Bore Inner diameter of boreNozzle Inner diameter of nozzle
Information regarding parts can be found in section 1.
There are three priming ejectors ½, ¾ and 1, See section 9.
Motive Suction Discharge Type
Serial number All ejectors are marked with serial numbers
Eg. 40-70-70 S
which identifies a specific ejector, which makes it
easy to reorder.
The number can be located on the flangesbetween the house and the diffuser. The numberis always marked on the opposite side of the inlet
side.
The number exist of 4-6 digits
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Engineering since 1904
MARITIME DIESEL ELECTRIC · 10308 West McNab Road · Tamarac, FL 3321 · Phone +1 (954) 597-7602 · Fax +1 (954) 597-7608 ·www.mardiesel.com [email protected]
2.4 Nozzle material
Both SS AISI 329 and Monel 400 are alloys known as well suited for ejector nozzles. The following is a
comparison between the data available from the suppliers of Monel 400 and SS AISI 329.
Monel 400 Stainless steel AISI 329
Composition Ni 63 % min
C 0,3 % max
Mn 2,0 % max
Fe 2,5 % max
S 0,024 % max
Si 0,5 % max
Cu remainder
Cr 26 %
Ni 5 %
Mo 1,5 %
C < 0,04 %Fe remainder
Structure: Solid solution
Tensile strength 570 Mpa
Elongation 45 %Hardness HB 150
Corrosion resistance: in sea water
More resistant to corrosion than its principal
constituents, nickel and copper. Excellentservice under high-velocity conditions, where
cavitations erosion is important.
Structure: Ferritic-Austenitic
Tensile strength 690 Mpa
Elongation 30 %Hardness HB 220
Corrosion resistance: in sea water
Excellent corrosion properties particularly as
regard to pitting, crevice corrosion, stresscorrosion and corrosion fatigue.
Superior to AISI 316 in chloride-bearing
environments.
Both materials show excellent resistance to corrosion in sea-water. But AISI 329 is a little more
resistant to mechanical-wear than Monel due to the superior hardness.
Therefore Ellehammer A/S has been using AISI 329 for more than 20 years as the standard materialfor nozzles in marine applications. During this period the stainless steel AISI 329 has proven itself asan excellent choice for ejector-nozzles. We can therefore guarantee the durability of this material.
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Engineering since 1904
MARITIME DIESEL ELECTRIC · 10308 West McNab Road · Tamarac, FL 3321 · Phone +1 (954) 597-7602 · Fax +1 (954) 597-7608 ·www.mardiesel.com [email protected]
3. Ejector Capacity Diagrams
This section visualise the Ellehammer ejectors capacity range, these are visualised by
diagrams.
With the diagrams you will be able to find several suitable ejectors for your purpose; thereby
you will have an idea of the dimensions. Remember that the diagrams can not be used for finalselection of ejectors, which must be performed by the Ellehammer A/S sales department.
When reading the diagrams it is important to consider 3 important variables which affect the
performance of ejectors, these are:
- Suction height
- Delivery height - Motive pressure
Additionally it is important to have sufficient motive water.
Each ejector column in the diagrams span over awide capacity range, this is dependent on thedelivery height and the motive pressure, See thebox to the right.
Select the upper of the
column if you have:
Select the lower of the
column if you have:
High pressure Low delivery height
Low pressure High delivery height
Additionally the diagrams has been divided by
water suction column, see the three colours tothe right.
= 3 Meter water column(suction)
= 5 Meter water column(suction)
= 7 Meter water column(suction)
As standard ejectors are delivered with flanges, but if they are marked with a star, they are:
* Delivered only with threaded connection.** Delivered with threaded connections or flanges.
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Engineering since 1904
MARITIME DIESEL ELECTRIC · 10308 West McNab Road · Tamarac, FL 3321 · Phone +1 (954) 597-7602 · Fax +1 (954) 597-7608 ·www.mardiesel.com [email protected]
C a p a c i t y m 3 / h
3.1 In-line ejectors capacity diagrams - .. 3 mWC .. 5 mWC .. 7 mWC
1000
130 85
130 190 190
340 340 350
510 510 530 750 770 770
500 600
250 250300 400
100
10
12
7,5
7
46 54 72
30
2535 40
10
55 60100 100
150 150 150 150
1
1000
100 62 62 85
132 132 154190
340 340 340
440 530 530 770 770 770
400 400 400 230 240 240
10 6
25
8,5
8 5
35
18 2432
47 5180 75
110 135 135 135
1
1000
120 126190
300 300 300350
500
540770 770 770
400 400 400
100
10
1
26 19
7
4 14 6
3
47 4785 100
40 41 57 50 23 24
75120 120 120
200 230 230
In-line ejector
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C a p a c i t y m 3 / h
3.2 B-type ejectors capacity diagrams - .. 3 mWC .. 5 mWC .. 7 mWC
1000
100 75
115170
350
104,5
6
1
45
20 50
15
5
70100 130
1000
100 70
105160
320
103,5 5
1
40
17 45 60
15
4
90 120
1000
100 65100
155280
10
2,5 4
1
35
14 4050
12
3
80100
B-type ejector
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C a p a c i t y m 3
/ h
3.3 Sewage ejectors capacity diagrams - .. 3 mWC .. 5 mWC .. 7 mWC
100
120
62
30 50
20 10
1
95 100
54
23 40
10 15
1
100 70
32
16 30
1010
1
40-70-70S* 50-80-80S 70-100-125S
S-type ejector
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21
C a p a c i t y m 3 /
h
( B r i n e )
C a p a
c i t y m 3 / h
( a i r )
C a p a
c i t y m 3 / h
3.4 Transportable ejectors capacity diagram
30 27
25
20
15
109
5 0
25-50-50T 40-70-70T
Transportable ejector
3.5 Priming ejectors capacity diagram
100 93
80
60
40
20
0
½ Priming* ¾ Priming* 1 Priming*
Priming ejector
3.6 D-type ejectors capacity diagram
8 7,57 6 5 4 3 2 1 0
D-type ejectors
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C a p a c i t y
m 3 / h
( a i r )
C a p a c i t y m 3 / h
( a i r )
3.7 V-type ejectors capacity diagram
3000 2800
2500
2000
1500
1000 800
1100
500
0
50-100-100V 50-125-125V 65-200-200V
V-type ejector
3.8 BV-type ejectors capacity diagram
250
200
150
100
50 42
0
200
84
25-32-70BV* 40-50-80BV 50-80-100BV
BV-type ejector
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25-50-40* 4
25-50-50** 7
40-70-70**
19
50-80-80 26
50-80-100 47
70-100-100
47
70-100-125
85
100-125-125 100
100-125-150 120
125-150-150 126
125-150-200 190
150-200-200 300
150-200-250 300
200-200-250
300
200-250-250
350
200-250-300
500 250-250-300 540
250-300-350 770
300-300-350 770
300-300-450 770
3.9 Diagram data
In-line ejectors
Minimum 3 MWC
Maximum 3 MWC
Minimum 5 MWC
Maximum 5 MWC
Minimum 7 MWC
Maximum 7 MWC
0
7,5
12
30
46
54
72
85
130
130
190
190
340
340
350
510
510
530750
770
770
0
6
8,5
25
35
62
62
85
132
132
154
190
340
340
340
440
530
530770
770
770
0
7 5 3
10
8
6
25 18 14
35
24
23
40
32
24
55 47 40
60 51 41
100 80 57
100 75 50
150 110 75
150 135 120
150
135
120
150
135
120
250 230 200
250
240
230 300 240 230
400 400 400
500 400 400
600 400 400
B-type ejector
25-32-32B*
25-40-50B
40-50-80B
50-80-100B
70-100-125B
100-125-150B
125-150-200B
150-200-250B
0 4,5
6
20
45
75
115
170
350
0 3,5
5
17
40
70
105
160
320
0 2,5
4
14
35
65
100
155
280
0
0
0
5 4 3
15 15 12
50 45 40
70 60 50
100 90 80
130 120 100
Sewage ejector
40-70-70S*
50-80-80S
70-100-125S
0 30
62
120
0 23
54
95
0 16
32
70
20 15 10
50 40 30
Transportable ejector
25-50-50T
0
9
40-70-70T 0 27
Priming ejectors (Air)
½ Priming* 0 21
¾ Priming* 0 48
1 Priming* 0 93
BV- type ejectors (Air)
25-32-70BV*
0
42
40-50-80BV
0
84
50-80-100BV 0 200
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4. Design and installation
This section will guide you towards a successful installation of an ejector. First some general
guidelines will be explained in order to achieve maximum performance of the ejector.
This section also describes how to design and install ejectors with ballast tanks.
The end of this section contains guidelines for maintenance and error correction, these can help you to
pinpoint errors, solve common problems and find spare parts.
4.1 Designing for efficiency
This paragraph will guide you to achieve maximum efficiency of an ejector.
Increase efficiency by:
Decrease suction height, rather than delivery height.
Avoid multiple and sharp bends on pipe.
Avoid bends close to ejector. Bends should be placed 5 x diameter of the pipe from the ejector.
Bend radius should be more than 1.5 x diameter of the pipe.
Install the ejector with pipes of similar diameter.
Ranking of installation possibilities by efficiency. All examples are made with fluid tanks.
Installation 1
This type of installation is characterised by simplicity, very few bends and low suction height. Whichmakes this installation type top recommended.
Installation 2
Increasing the suction height and adding additional bends on pipe will decrease efficiency and moremotive medium will be needed.
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Installation 3
If the ejector is installed with deep suction pipe it will decrease efficiency. Therefore suction height
should be kept as minimal as possible.
Installation 4 Installation of ejectors in narrow and complex places can lead to additional bends on pipe, which can
increase resistance of medium flow. It is therefore recommended to avoid multiple bends and installthe ejector with as straight pipes as possible.
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4.2 Design with pipes
In general a straight length of pipe at the connections of the ejector is not required. All the testing ofEllehammer ejector is performed at the test plant in Glostrup Denmark with a bend directly before thesuction connection. Hence the ejectors specified by Ellehammer A/S will perform according tospecifications even when fitted with a bend directly to the ejector suction connection.
Recommendation:
Very sharp bends should be avoided; bend radius should be 1.5 times the pipe diameter or
more.
On the discharge side, if possible, a straight pipe of not less than 3 times the diameter should
be mounted, this to avoid possible pitting problems in the following bend.
On the suction side, multiple bends in different planes should be avoided, as this will cause arotating flow, which may adversely affect the suction capacity. If this is not possible a straightlength of 10 times the diameter should be installed either between the bends or between thelast bend and the ejector. Multiple bends in the same plane will not have this effect and a
straight length of pipe is not needed.
Recommended NON- Recommended
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4.3 Designing with ejector types - Gauges, valves and strainers
This section will guide you to install in-line, B- and S-type ejectors.
Ejectors can be installed in any possible position, although it might decrease efficiency, see section 4.1.
For correct installation of suction-, motive- and discharge connections please see the sketches below.
For easy function check gauges can be connected on the piping to the ejectors. Remember to in stall avacuum gauge on the suction pipe.
To avoid the ejector from clogging, it is recommended to install a strainer on the suction pipe, this will
collect the majority of large particles.
Designing with homogenous suction medium - In line type ejectors
Designing with ejectors for particles B- & S-type ejectors
B & S-type ejectors are designed with an inspection cover, which should be accessible for easy and
quickly removal of clogging material.
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4.4 Designing with pumps
An ejector is designed to operate at exact motive pressure and motive capacity; this section will clarify
what happens if the motive flow changes.
Specification of ejectors will be delivered with the individual ejector. It is recommended to follow the
specifications.
The specified motive flow is measured at the ejector entry, friction within the piping to the ejectorshould be considered in each individual installation, particularly, long distance to the pump, manybends on motive piping and varying pipe dimensions should be taken into account.
Changing motive flow can result in:Varying motive flow will decrease ejector performance.
Decreasing motive flow from the specifications might result in insufficient or none performing
of an ejector.Increasing motive flow might cause the ejector to malfunction.
Ejectors are designed for maximum suction capacity, therefore, increasing motive flow might
not increase suction capacity.
Pumps are often designed to operate a specific operating point. The pump, however might deliver anyvariety of capacities up to its maximum depending on the pressure. The pump supplier documents thisby a performance curve/diagram.
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MARITIME DIESEL ELECTRIC · 10308 West McNab Road · Tamarac, FL 3321 · Phone +1 (954) 597-7602 · Fax +1 (954) 597-7608 ·www.mardiesel.com [email protected]
4.5 Designing with ballast ejectors
This section will guide you with two scenarios of stripping ballast tanks. Stripping with positive
suction head and stripping with negative suction head.
For most efficient performance the designer should consider high positive head and high negative
head, this is illustrated below.It is recommended to design the system by equalised water levels, and it is most important to ensure
safe performance in negative suction head situations.
Positive head
When stripping the ballast tanks,
ejectors might have a positive suctionhead.
The ejector will therefore not need
motive pressure, before the waterlevels has equalised.
Negative suction head
In situation when cargo has been fullyloaded and the water level is low in theballast tanks, will result in a highnegative suction head.
This situation will be the most criticalwhen designing with ballast tanks.
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T o t a l m e e r w a e r c o l u m n ( M W C )
4.6 Ejector performance diagram
Performance diagrams visualise efficiency of ejectors. The graph shows operating details for theejector measured by total meter water column (horizon) and suction capacity (horizontal). The graphis a measurement of static performance.
The vertical line express total meter water column. The total meter water column is an addition ofsuction height and delivery height. Suction height is defined as the height from suction point to theejector. Delivery height is defined as the height from the ejector to the discharge.
Total suction capacity is defined as the amount of sucked medium, measured in cubic meter pr. hour.
The graph should be read from left to right, followingthe colour pattern from yellow over green and endingwith red.The graph is beginning with high water column andlow capacity, this is visualised by the yellow line,meaning that the ejector will function with lowefficiency.As the water column decrease the capacity increase,this effect can be seen as the yellow colour changes togreen. The green fraction of the graph visualise bestefficiency of the ejector, and this is the normaloperating range.
At the end of the green area the graph is breaking,meaning that the ejector has reached its maximum
performance level. The breaking point should at all
times be avoided, because of the high possibility ofnon performing ejector visualised by the red fraction.
Suction capacity (m3/h)
4.7 Start up & After sales
Start up
Open the motive water valve and check that the motive pressure gauge shows the correct pressure.
The ejector will prime and function within few seconds.If the ejector has zero or insufficient performance, please see section 4.8.
After sales
You are always welcome to contact us for after sales service see our contact information at the
bottom of the page.If you have questions about previous orders, then please refer to the ejector drawing for part numbers.
You will be asked for the ejector type number and serial number. See section 2.3
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4.8 Error correction In many cases the best and quickest way to find the cause of a malfunction is to exclude the wrong
explanations. This can often be achieved by drilling threaded holes in the pipes close to the ejector and
mount pressure gauges. The pressure readings during a test-running of the ejector will most often
point in the direction of the cause of the malfunction.
Error Possible causes Solution
The ejector has
no suction
The motive water is not turned on. Turn on the motive water.
The strainer is blocked. Clean the strainer and the suction well.
capacity. The nozzle is blocked.
This may be indicated by unusual highmotive pressure.
Check and clean the nozzle.
The throat or suction side is blocked. Check and clean the throat and nozzle casing.
The motive water runs through theejector without creating any suction.This problem can occur if there is no
piping on the discharge side.
The motive water has been incorrect
connected.
The problem arises because the motivewater can not fill the ejector, allowing air toflow from the discharge side back to the
suction side (an internal short circuit). Isremedied by adding a short piece of pipewith a 90° bend to the discharge side.
Check that the motive water enters the
correct connection. Refer to the drawing.
The ejector hasinsufficientsuction capacity.
Delivery height is too high. Decrease the delivery head or increase the
motive pressure.
The suction piping has a leak. Check the piping, its connections and
gaskets. The suction piping must be airtight!
Insufficient motive pressure. Compareagainst specification of working data.
Suction head is too large.
In normal installation, the suctionpressure should be above 0,8 Bar.
The motive water nozzle is lacking or
heavily worn.
Find and repair the cause for the lowpressure.
Check the piping for obstructions, partly
closed valves etc.
Check the nozzle and if necessary change it.The standard nozzle diameter is indicated bythe last figure in the type no. (in mm)
The water flowsbackwards
Motive pressure is insufficient. Increase the motive pressure.
Delivery height is too high. Decrease the delivery head or increase the
motive pressure.
The motive water has been incorrect
connected.
Check that the motive water enters thecorrect connection, namely the one thatleads to the motive nozzle. Refer to theejector drawing.
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5. In-Line Ejectors - Dimensions and weights
Our In-line ejectors have the best efficiency and are therefore our most commonly sold type.
The motive water is coming from the side and suction is created In-line.
In line ejectors over size 125-150-150 has inspection covers.
Ejector A B C pø Pø sø Sø dø Dø Kgs
25-50-40 385 40 39 1 BSP socket 2 BSP socket 1½ BSP nipple 2
25-50-50 447 40 39 1 BSP socket 2 BSP socket 2 BSP nipple 3
25-50-50F 491 85 70 DN 25 115 DN 50 165 DN 50 165 11,5
40-70-70 600 60 70 1½ BSP socket 2½ BSP socket 2½ BSP nipple 9,5
40-70-70F 645 100 115 DN 40 150 DN 65 185 DN 65 185 22
50-80-80 792 115 130 DN 50 165 DN 80 200 DN 80 200 35
50-80-100 940 115 130 DN 50 165 DN 80 200 DN 100 220 43
70-100-100 963 123 138 DN 65 185 DN 100 220 DN 100 220 47
70-100-125 1230 123 138 DN 65 185 DN 100 220 DN 125 250 65
100-125-125 1231 114 170 DN 100 220 DN 125 250 DN 125 250 70
100-125-150 1263 114 170 DN 100 220 DN 125 250 DN 150 285 75
125-150-150 1341 162 180 DN 125 250 DN 150 285 DN 150 285 110
125-150-200 1606 162 180 DN 125 250 DN 150 285 DN 200 340 180
150-200-200 1855 180 215 DN 150 285 DN 200 340 DN 200 340 240
150-200-250 1905 180 215 DN 150 285 DN 200 340 DN 250 395 260
200-200-250 1905 180 215 DN 200 340 DN 200 340 DN 250 395 260
200-250-250 2188 215 245 DN 200 340 DN 250 395 DN 250 395 300
200-250-300 2295 215 245 DN 200 340 DN 250 395 DN 300 445 315
250-250-300 2295 215 245 DN 250 395 DN 250 395 DN 300 445 315250-300-350 2510 280 275 DN 250 395 DN 300 445 DN 350 505 485
300-300-350 2510 280 275 DN 300 445 DN 300 445 DN 350 505 485
300-300-450 2510 280 275 DN 300 445 DN 300 445 DN 450 615 515
All flanges can be drilled according to DIN Pn 10, ANSI, JIS standards or other requirements.See dimensional sketches for detailed information
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Ejector Performance Diagram - 25-50-50
Performance curve 1
Motive water pressure
pDR [BarG]
Motive water consumption
QDR [m3/h]
3 10
4 115 12
6 13
7 14
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Ejector Performance Diagram - 25-50-50
Performance curve 2
Motive water pressurepDR [BarG]
Motive water consumption
QDR [m3/h]
3 12
4 14
5 15 6 17
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Ejector Performance Diagram - 40-70-70
Performance curve 3
Motive water Consumption [PDR]
Motive water Pressure
[QDR] Suction Head
[PSUC]
3 mWC 5 mWC 7 mWC
2 BarG 14,2 m3/h 14,9 m3/h 15,4 m3/h
3 BarG 16,9 m3/h 17,5 m3/h 18,1 m3/h4 BarG 19,4 m3/h 19,9 m3/h 20,5 m3/h
5 BarG 21,6 m3/h 22,0 m3/h 22,6 m3/h
6 BarG 23,6 m3/h 23,9 m3/h 24,4 m3/h
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Ejector Performance Diagram - 40-70-70
Performance curve 4
Motive water Consumption [PDR]
Motive water Pressure
[QDR]
Suction Head
[PSUC]
3 mWC 5 mWC 7 mWC
2 BarG 16,0 m3/h 16,8 m3/h 17,4 m3/h
3 BarG 19,1 m3/h 19,8 m3/h 20,4 m3/h4 BarG 20,5 m3/h 22,5 m3/h 23,1 m3/h
5 BarG 24,4 m3/h 24,8 m3/h 25,5 m3/h
6 BarG 36,6 m3/h 27,0 m3/h 27,5 m3/h
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Ejector Performance Diagram - 40-70-70
Performance curve 5
Motive water Consumption [PDR]
Motive water Pressure
[QDR] Suction Head
[PSUC]
3 mWC 5 mWC 7 mWC
2 BarG 18,0 m3/h 18,7 m3/h 19,5 m3/h
3 BarG 21,9 m3/h 22,2 m3/h 22,8 m3/h4 BarG 24,9 m3/h 25,3 m3/h 25,7 m3/h
5 BarG 27,6 m3/h 28,1 m3/h 28,3 m3/h
6 BarG 30,2 m3/h 30,6 m3/h 30,7 m3/h
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Ejector Performance Diagram - 50-80-80
Performance curve 6
Motive water
pressure pDR
[BarG]
Motive water consumption*)
QDR [m3/h]
10 53
9 51
8 487 45
6 42
5 39
4 353 31
2 26
*) at 5 mWC suction head
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Ejector Performance Diagram - 70-100-125
Performance curve 7
Motive water pressurepDR [BarG
Motive water consumption*)
QDR [m3/h]
10 67
9 64
8
61
7 57
6 53
5 49
4
45
3 40
2 34
*) at 5 mWC suction head
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In-line 25-50-50F
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In-line 25-50-40
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In-line 40-70-70
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In-line 40-70-70F
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In-line 50-80-80
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Engineering since 1904
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In-line 50-80-100
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Engineering since 1904
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In-line 70-100-100
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Engineering since 1904
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In-line 70-100-125
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Engineering since 1904
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In-line 100-125-125
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Engineering since 1904
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In-line 100-125-150
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Engineering since 1904
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In-line 125-150-150
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Engineering since 1904
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In-line 150-200-200
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Engineering since 1904
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In-line 200-200-250
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Engineering since 1904
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In-line 200-250-250
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Engineering since 1904
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In-line 250-250-300
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Engineering since 1904
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In-line 250-300-350
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Engineering since 1904
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In-line 300-300-350
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Engineering since 1904
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Ejector type A B C øp øP øs øS ød øD Kgs
25-32-32B* 308 38 47 1 BSP socket 1¼ BSP socket 1¼ BSP nipple 1,9
25-40-50B 497 97 85 25 115 40 150 50 165 13
40-50-80B
695
105
100
40
150
50
165
80
200
21
50-80-100B
875
125
115
50
165
80
200
100
220
31
70-100-125B 1080 140 130 70 185 100 220 125 250 55
100-125-150B 1295 160 150 100 220 125 250 150 285 56
125-150-200B 1655 180 170 125 250 150 285 200 340 115
150-200-250B 2060 210 220 150 285 200 340 250 405 220
6. B -Type Ejectors - Dimensions and weights Side suction water motivated
B-t ype ejectors differs in two ways from the In-line ejector. The motive water is coming fromthe end and suction is created from the side and it is equipped with an inspection cover.Ejectors of all makes and designs may be clogged up by particles. Whereas soft matternormally will pass through the ejector solid particles larger than the gap between the nozzleand the throat will get caught in the narrow passage and eventually cause the ejector to ceasepumping. With Ellehammer B-type ejectors the foreign matter can easily be removed throughthe inspection cover.
Additionally the B-type ejector can be constructed with enlarged gap between the nozzle andthe throat, which makes it suitable for sewage use.
*Without flanges, installation by threads.
All flanges can be drilled according to DIN Pn 10, ANSI, JIS standards or other requirements.
See dimensional sketches for detailed information
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Ejector Performance Diagram - 25-32-32B
Performance curve 8
Motive water pressurepDR [BarG]
Motive water consumption
QDR [m3/h]
3 1.45
4 1.655 1.81
6 1.98
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Engineering since 1904
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Ejector Performance Diagram -25-32-32B
Performance curve 9
Motive water pressurepDR [BarG]
Motive water consumption
QDR [m3/h]
2 3.7
3 4.3
4 4.8
5 5.26 5.7
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Engineering since 1904
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Ejector Performance Diagram - 25-32-32B
Performance curve 10
Motive water pressurepDR [BarG]
Motive water consumption
QDR [m3/h]
3 4.5
4 5.1
5 5.5
6 6.0
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Engineering since 1904
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B-type 25-32-32B
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Engineering since 1904
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B-type 25-40-50B
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Engineering since 1904
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B-type 40-50-80B
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Engineering since 1904
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B-type 50-80-100B
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Engineering since 1904
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B-type 100-125-150B
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B-type 150-200-250B
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50-80-80S 500 130 120 62 165 80 200 80 160 23
70-100-125S 700 140 150 80 185 100 220 125 250 37
7. S-Type Ejectors - Dimensions and weights
S-type ejectors are designed for sewage usage, this ejector allows large particles to pass
through the ejector
Ejector type A B C øp øP øs øS ød øD Kgs
40-70-70S 580 80 75 1½ BSP Socket 2½ BSP Socket 2½ BSP Nipple 9.5
Dimensions and weight are subject to alterations. All flanges are drilled according to DIN Pn 10 unless another standard is s pecified.
Max sewage particle size
Ejector type Max particle size diameter mm
40-70-70S 30
50-80-80S 45
70-100-125S 65
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Ejector Performance Diagram - 40-70-70 S
Performance curve 11
Motive water pressure
pDR [BarG]
Motive water consumption
QDR [m3/h]
2 17.4
3 20.8
4 23.6
5 26.2
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Ejector Performance Diagram - 50-80-80S
Performance curve 12
Motive water consumption
QDR [m3/h] Motive water pressure
PDR [BarG]
31,9 3,0
36,3 4,0
40,4 5,0
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Engineering since 1904
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S-type 40-70-70S
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Engineering since 1904
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S-type 50-80-80S
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Engineering since 1904
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S-type 70-100-125S
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MARITIME DIESEL ELECTRIC · 10308 West McNab Road · Tamarac, FL 3321 · Phone +1 (954) 597-7602 · Fax +1 (954) 597-7608 ·www.mardiesel.com [email protected]
8. Portable Ejectors - Dimensions and weights
Portable ejectors are used where a fixed ejector is not required. Ellehammer produce two
different sizes of portable ejectors.
Ejector type A B øp øP øs øS ød øD Kgs
25-50-50T
1720
80
Storz C
N/A
Storz C
9
40-70-70T
2774
127
Storz C
N/A
108
Storz B
22
§ Easy to handle
§ Optimised capacity
§ Motivated from Fire System
§ Discharge through standard fire hose
§ Easy to Stow Away
§ Rugged Design
§ Capacities up to 30 m3/h
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Ejector Performance Diagram - 25-50-50T
Performance curve 13
Suction hose 1 m
Motive water pressure
pDR [BarG]
Motive water consumption
QDR [m3/h]
2 8,1
3 9,5
4 10,8
5 11,8
6 12,97 13,9
8 14,8
9 15,7
10 16,5
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Ejector Performance Diagram - 40-70-70T
Performance curve 14
Suction hose 2 m
Motive water pressure
pDR [BarG]
Motive water consumption
QDR [m3/h]
2 183 22
4 255 28
6 307 33
8 35
9 37
10 39
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Ejector Performance Diagram - 70-100-100T
Performance curve 15
Motive water
(Suction Head PSUC=0 mWC)
Motive water pressurepDR [BarG]
Motive water consumption
QDR [m3/h]
2 48
3 57
4 66
5 72
6 78
7 83
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Engineering since 1904
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T-type 40-70-70T
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9. Priming Ejectors Dimensions & weights
Priming ejectors are used for priming of non-self priming centrifugal pumps. These ejectors aremotivated by compressed air.
Ejector type A B C øp øP øs øS ød øD Kgs
½ Priming 154,5 53 50 ½ BSP ½ BSP ½ BSP 1
¾ Priming 221 55 56 ½ BSP ¾ BSP 1¼ BSP 2,15
1 Priming 302 82,5 100 1 BSP 1 BSP 1 BSP 6,1
Preferably, the priming suction connection should be situated above the centrifugal pump, or
if this is not possible, on the pump casing, ensuring the best possible filling of the impeller.
When priming, the discharge
piping must be shut off toenable the priming ejector to
build up vacuum. Upon
starting up the centrifugal
pump the priming ejector pipe
must be shut off to prevent
leakage through the ejector
and the main discharge valve
must be opened. The latter can
be automated by using a check
valve.
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Engineering since 1904
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Ejector Performance Diagram - ½ inch priming
Water motivated
Performance curve 16
Motive water pressure
pDR [BarG]
Motive water consumption
QDR [m3/h]
4 0.6
6 0.7
8 0.8
10 0.9
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Ejector Performance Diagram - ½ inch priming unit
Air motivated
The following performance diagram shows the capabilities of the ejector at different
operating pressure. When activating the ejector it will perform from 0 mWC vacuum up to -9
mWC vacuum. Therefore the ejector will have high gas consumption at startup, which
decreases as the vacuum increases.
Performance curve 17
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Ejector Performance Diagram - 1 inch priming
Air motivated
The following performance diagram shows the capabilities of the ejector at different
operating pressure. When activating the ejector it will perform from 0 mWC vacuum up to 8
mWC vacuum. Therefore the ejector will have high gas consumption at startup, which
decreases as the vacuum increases.
Performance curve 18
Motive air pressure
[BarG] Motive air consumption
(free air) [m3/h]
3 1.5 4 1.9 5 2.2
6 2.6
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Priming ejector ½
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Priming ejector 1
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10. Desalt/Brine ejectors Dimensions and weights
Desalt ejectors are specially designed for desalting systems/ Fresh water systems, where the ejector is
used to suck brine out of the system. The ejector is therefore only a minor part of this system. We
deliver many different desalt ejector types, contact us for further information.
Ejector type A B C pø Pø sø Sø dø Dø
D1 470 80 60 - - Universal
flan es
D2
520
80
60 - - Universal
flanges
D3 692,5 127,5 110 - - Universal
flanges D4
912,5 127,5 110 - - Universal
flanges
D5
912,5
127,5
110 - - Universal
flanges
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11 . Venting ejector Dimensions and weights
Venting ejectors are designed for emptying of gas from rooms.
Ejector type A B C pø Pø sø Sø dø Dø Kgs
50-100-100V 1230 290 160 110 mm hose STORZ-C 100 160 11.5
50-125-125V 1480 288 130 125 240 STORZ-C 125 288 17
65-200-200V
2320
320
150
200
320
STORZ-B
200
260
45
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Ejector Performance Diagram Venting ejector 50-100-100
Performance curve 19
Motive water pressure
pDR [BarG]
Motive water consumption*)
QDR [m3/h]
2 11,9 3 14,6
4 16,9 5 18,8
6 20,6
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Ejector Performance Diagram - Venting ejector 50-125-125
Performance curve 20
Motive water pressurepDR [BarG]
Motive water consumption*)
QDR [m3/h]
2 11,9
3 14,6 4 16,9 5 18,8
6 20,6
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Ejector Performance Diagram - Venting ejector 65-200-200
Performance curve 21
Motive water pressurepDR [BarG]
Motive water consumption*)
QDR [m3/h]
2 30 3 38 4 44
5 50 6 55
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Venting ejector 50-100-100
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Venting ejector 50-125-125
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Venting ejector 65-200-200
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12. BV Ejector - Dimensions and weights Air vacuum water motivated
This type of ejector is ideal for making vacuum. The ejector is motivated by water and designed to suck
varies types of gasses
Ejector type A B C pø Pø sø Sø dø Dø Kg
25-32-70BV 960 38 47 1¼ BSP nipple 1 BSP socket 1½ BSP nipple 5.5
40-50-80BV 1300 105 100 50 165 40 150 80 200 21.5
50-80-100BV 2055 125 115 80 200 50 165 100 220 34
*Without flanges, installation by threads.
All flanges can be drilled according to DIN Pn 10, ANSI, JIS standards or other requirements.
See dimensional sketches for detailed information
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Engineering since 1904
MARITIME DIESEL ELECTRIC · 10308 West McNab Road · Tamarac, FL 3321 · Phone +1 (954) 597-7602 · Fax +1 (954) 597-7608 ·www.mardiesel.com [email protected]
Ejector Performance Diagram - 25-32-32BV
The following performance diagram shows the capabilities of the ejector at different
operating pressure. When activating the ejector it will perform from 0 mWC vacuum up to -9
mWC vacuum. Therefore the ejector will have high gas consumption at startup, which
decreases as the vacuum increases.
Performance curve 22
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Engineering since 1904
MARITIME DIESEL ELECTRIC · 10308 West McNab Road · Tamarac, FL 3321 · Phone +1 (954) 597-7602 · Fax +1 (954) 597-7608 ·www.mardiesel.com [email protected]
Ejector Performance Diagram - 25-32-70BV
The following performance diagram shows the capabilities of the ejector at different
operating pressure. When activating the ejector it will perform from 0 mWC vacuum up to -10
mWC vacuum. Therefore the ejector will have high gas consumption at startup, which
decreases as the vacuum increases.
Performance curve 23
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Engineering since 1904
MARITIME DIESEL ELECTRIC · 10308 West McNab Road · Tamarac, FL 3321 · Phone +1 (954) 597-7602 · Fax +1 (954) 597-7608 ·www.mardiesel.com [email protected]
Ejector Performance Diagram - 40-50-80BV
The following performance diagram shows the capabilities of the ejector at different
operating pressure. When activating the ejector it will perform from 0 mWC vacuum up to -10
mWC vacuum. Therefore the ejector will have high gas consumption at startup, which
decreases as the vacuum increases.
Performance curve 24
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Engineering since 1904
MARITIME DIESEL ELECTRIC · 10308 West McNab Road · Tamarac, FL 3321 · Phone +1 (954) 597-7602 · Fax +1 (954) 597-7608 ·www.mardiesel.com [email protected]
Ejector Performance Diagram - 100-125-150BV
The following performance diagram shows the capabilities of the ejector at different
operating pressure. When activating the ejector it will perform from 0 mWC vacuum up to -10
mWC vacuum. Therefore the ejector will have high gas consumption at startup, which
decreases as the vacuum increases.
Performance curve 25
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Engineering since 1904
MARITIME DIESEL ELECTRIC · 10308 West McNab Road · Tamarac, FL 3321 · Phone +1 (954) 597-7602 · Fax +1 (954) 597-7608 ·www.mardiesel.com [email protected]
BV-type 25-32-70BV
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Engineering since 1904
MARITIME DIESEL ELECTRIC · 10308 West McNab Road · Tamarac, FL 3321 · Phone +1 (954) 597-7602 · Fax +1 (954) 597-7608 ·www.mardiesel.com [email protected]
Ejector inquiry formCustomer :
Project :
Inquiry date :
Delivery date :
Telephone/Telefa :
x
E-mail: :
Contact person :
1) Ejector installation area: (Bilge, Ballast, Cargo, Slop, Chain locker, Priming, etc.)
2) Vessel type and size:
Material: o Bronze o Aluminium-Bronze o Cast iron
Assembly: Flangeso
DIN -o
ANSI -oJIS -o
Other Threadedo
Suction capacity m3/h:
Suction height mWC:
Delivery height mWC:
Suction medium
Max. particle size
Total meter water
column
mWC:
Motive capacity m3/h:
Motive pressure Bar:
Motive medium
Documentation
Dimensional sketch, Performance diagrams and Guarantee
Form o
Paper o
Electronic
Certificates o
Class: o
Material: o
Works
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Engineering since 1904
MARITIME DIESEL ELECTRIC · 10308 West McNab Road · Tamarac, FL 3321 · Phone +1 (954) 597-7602 · Fax +1 (954) 597-7608 ·www.mardiesel.com [email protected]
14. Representatives Ellehammer A/S has several representatives around the world. These representatives can
help any customer regarding product information and technical questions.Some representatives also supply complementary products to Ellehammers in form of
pumps, pipe equipment and various other types of equipment.
China Representative office China D.C Marine Supply Phone: +86 21 5465 7660
Fax: +86 21 6473 [email protected]
Force Equipment Co. Ltd. Phone: +8 121 625 44 693
Tel: +8 687 625 44 693
www.danuni.com
International Sinoking Ltd.
Phone: +86 21 6152 4785Fax: +86 21 5090 2296
www.sinoking-marine.com
Marinequip China Co., Ltd Phone: +86 21 64 45 25 45
Fax: +86 21 64 45 53 [email protected]
Ning Hai Equipment & Engineering Ltd.
Phone: +86 21 6105 2078
Fax: +86 21 5876 [email protected]
Shanghai KnowHow Marine
Equipment Ltd. Phone: +86 21 6443 9428
Fax: +86 21 6416 6108
Yong Xin Equipment Ltd.
Phone : + 86 411 826 238 76Fax : + 86 411 826 239 36
Germany VN Pumpen, Volker Nienstädt GmbH & Co. KG Phone: +49 421 43 26 23
Fax: +49 421 432 6240
Greece Internava
Phone: +30 210 959 4530
Fax: +30 210 959 [email protected]
www.internava.gr
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Engineering since 1904
MARITIME DIESEL ELECTRIC · 10308 West McNab Road · Tamarac, FL 3321 · Phone +1 (954) 597-7602 · Fax +1 (954) 597-7608 ·www.mardiesel.com [email protected]
Japan
Netherlands
Norway
Poland
Russia & CIS
Romania
Singapore
Harada Corporation Phone: +81 35 222 7178
Fax: +81 33 213 8399
A. de Jong T.H. B.V.
Phone: +31 78 655 2000Fax: +31 78 655 [email protected]
AxFlow Phone: +47 22 73 67 00
Fax: +47 22 73 67 80
A.S. Marine Phone: +48 91 464 81 10
Fax: +48 91 464 81 [email protected]
Marine Technics Phone: +7 812 332 3242
Fax: +7 812 332 [email protected]
S.C Technoind SRL Phone: + 40 744 593 593
Fax: + 40 236 415 442
Pacific Engineering & Services Pte Ltd
Phone: +65 6763 3039Fax: +65 6763 6190
www.pacificglobal.com.sg
Spain Brispes S.L. Phone: +34 956264773
Fax: +34 956201161
Vilanova Y Cruz, S.L. Phone: +34 981 682 440
Fax: +34 981 682 [email protected]
www.vilanovaycruz.com
Sweden Tomal AB Phone: +46 346 713100
Fax: +46 346 [email protected]
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Engineering since 1904
Turkey
USA
Meson AB Phone: +46 430-171 23
Fax: +46 430 171 91
DAPE consultants, Engineering &
Representatives Ltd. Phone: +90 216 491 51 37
Fax: +90 216 491 51 36
www.dape.com.tr
Maritime Diesel Electric Inc.Phone: +1 954 597 97602
Fax: +1 954 597 [email protected] www.mardiesel.com