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Mono®
Low Flow Pumps for Dosing
Accuracy, Reliability, Simplicity.
The Mono PedigreeMono Pumps Ltd are a division of Halliburton
Company, a worldwide business renowned for its
high standards of products and service. Standards
reflected in the Mono Pumps range. Mono have
been at the forefront of progressing cavity pump
design since 1935. With the experience gained from
over 65 years, we are able to reflect the varying
needs of our extensive customer base worldwide.
And an all-round efficiency and quality which our
customers demand, and to which we are committed.
Designed for use where accurate, low flow pumps
are required for either intermittent or continuous
dosing, the compact LF pumps have high tolerance
to aggressive chemicals and the renowned reliability
of Mono.
The LF pumps have a repeatability of + 2% and
operating temperatures from 0 to 70°C for the
standard configuration.
Three two stage models are available covering
0 to 600 l/hr, up to 12 bar. The standard housing
is polyethylene, with the option of stainless steel.
All three models use one suction housing, end
cover and drive mount. Assembly and dismantling
is facilitated through use of tie bars and all utilise
the Flexishaft® drive train.
Stators can be supplied in natural rubber, nitrile
and viton and rotors are available in stainless steel
or stainless steel hard chrome plate.
Single mechanical seal is standard and there are
four drive configurations - AC synchronous, fixed
speed gear box, DC and variable speed gear box.
The LF Range Specification
The curvature of this diagram has beenenhanced for visual purposes only
The Flexishaft®
The Flexishaft links the drive shaft to the helical
rotor. Conceived by Mono Pumps in the early 1970s,
it is a unique solution to the problem of connecting
the pump drive shaft to the eccentrically orbiting rotor;
completely eliminating conventional universal joint
designs.
The Flexishaft is manufactured from a toughened
stainless steel material using a specific process for
Mono and is covered with an abrasion and corrosion-
resistant food approved coating.
The benefits of the Flexishaft are particularly apparent
in process industries, where both continuous and
batch production demand reliable equipment.
Flexishaft Design parameters
In designing the Flexishaft the considerations
and design criteria are similar to those of other
components requiring high reliability which are
subject to a high number of cycles of alternating
stress. Examples would include gear teeth, lift
winding gear, springs and aircraft structures.
In operation, the Flexishaft is subjected to a
combination of steady state and alternating stresses.
The latter results from the flexing of the shaft and
during one revolution the Flexishaft is subjected to
two cycles of alternating stress. The Flexishaft
proportions are designed to ensure that this stress
is well below the elastic limits of the material, to
ensure no deformation of the Flexishaft.
Flexishaft Features and Benefits
Because there are no moving and, therefore, no
wearing parts, the LF range does not incur the cost
of maintenance associated with other forms of
rotor/coupling joints. Lubrication is unnecessary and
therefore product contamination is eliminated providing
the pump is operated within the specified operating
conditions - even in the unlikely event of joint failure.
Mono Features The pump is self priming, and the gentle non
pulsating pumping action helps maintain product
integrity with even the most difficult materials. The
range of suitable substances includes viscous and
slurry products, solids in suspension and air/
liquid/solids mixtures.
These versatile pumps have output directly
proportional to speed.
The Flexishaft is supported by
a 5 year warranty
Performance Data LF Dosing Pump Range Coding
PUMP PRESSURE - bar
MODEL SPEED 0 3 6 9 12
NUMBER RPM l/hr l/min l/hr l/min l/hr l/min l/hr l/min l/hr l/min
1750 63 1.05 62 1.03 61 1.02 59 0.98 58 0.97
1450 52 0.87 51 0.85 50 0.83 49 0.82 47 0.78
1000 36 0.60 35 0.58 34 0.57 33 0.55 31 0.52
600 22 0.37 21 0.35 20 0.33 19 0.32 17 0.28
300 11 0.18 10 0.17 9 0.15 8 0.13 6 0.10
1750 95 1.58 93 1.55 92 1.53 91 1.52 85 1.42
1450 80 1.33 78 1.30 76 1.27 75 1.25 80 1.33
1000 57 0.95 55 0.92 54 0.90 53 0.88 50 0.83
600 36 0.60 35 0.58 34 0.57 33 0.55 31 0.52
300 20 0.33 20 0.33 19 0.32 18 0.30 16 0.27
1750 218 3.63 212 3.53 209 3.48 202 3.37 195 3.25
1450 183 3.05 180 3.00 174 2.90 170 2.83 163 2.72
1000 130 2.17 126 2.10 123 2.05 119 1.98 112 1.87
600 82 1.37 79 1.32 76 1.27 72 1.20 67 1.12
300 44 0.73 42 0.70 40 0.67 38 0.63 32 0.53
1750 590 9.83 580 9.67 570 9.50 550 9.17 528 8.80
1450 495 8.25 485 8.08 475 7.92 455 7.58 435 7.25
1000 350 5.83 340 5.67 330 5.50 315 5.25 300 5.00
600 220 3.67 210 3.50 205 3.42 190 3.17 175 2.92
300 115 1.92 110 1.83 105 1.75 90 1.50 75 1.25
LF052
LF102
LF202
LF502
NOTES: Performance data are typical only on clean water at 20°C.For guidance in selecting pumps for use with other fluids of varying abrasion and viscosity,refer to Mono Pumps or your agent.
800
700
600
500
400
300
200
100
50
00 1 2 3 4 5 6 7 8 9 10 11 12
CA
PA
CIT
Y -
litr
es p
er h
our
DIFFERENTIAL PRESSURE - bar
LF502
LF202
LF102LF052
BASIC PUMP CODING STD.VAR.FEATURE DESCRIPTION
1 2 3 4 5 6 7 8 9 10 / 12 13 14 15
SYNTHETIC PBODY
STAINLESS STEEL SMATERIALS
PUMP DESIGN LOW FLOW L F
NOMINAL PUMP50 lph 0 5
CAPACITY AT 100 lph 1 0
MAX. SPEED 200 lph 2 0AND ZERO 500 lph 5 0PRESSURE
PUMP STAGES TWO 2
DRIVE TYPE 1DRIVE (see table below) 2ARRANGEMENT
MARK NUMBER 1991 1
STATOR MAT’L RA RR etc. A
ROTATING Pts. 5 & 8 5
SYNTHETIC BODIEDLOW FLOW PUMP
TYPICAL BASIC 202 MODEL, TWO STAGEPUMP CODING DRIVE TYPE 1, MK 1 P L F 2 0 2 1 1 A 5 /
NATURAL STATOR.CODE 5 ROTATING PARTS
G - FIXED SPEED GEARBOX
V - VARIABLE SPEED P L F 2 0 2 1 1 A 5 / VPRIME MOVER
X - DRIVE NOT SUPPLIED
FULL PUMP CODE TO BE STAMPED ON PUMP NAMEPLATE
DRIVE DESCRIPTION REMARKS
DRIVE TYPE 1AC MOTOR - IEC80 B14 FOOT & FLANGE MOUNT - B14DC MOTOR - B14 19mm SHAFT DIAMETER
GEARED MOTOR AC or DC FOOT & FLANGE MOUNT - B14DRIVE TYPE 2VAR SPEED WIDE V-BELT 20mm SHAFT DIAMETER
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For options not detailed above please refer to Mono Pumps Ltd., Audenshaw, Manchester.
Applications Use of different statormaterials enables the LFRange to be used for a widerange of products, including:
acids
alkalis
brewing
caustic substances
chemical processing
cosmetics
cyanide
dyes
effluent treatment
flocculants
food ingredients
inks
neutralising pH
photographic
pilot plants
process mining
silver nitrate
water treatment
winemaking
A.C. MOTOR, 4 POLE, 6 POLE D.C. MOTOR
VARIABLE SPEEDGEARMOTOR
LF Range Dimensions & Drive Variations
At Mono Pumps full pre-sales support and
post-order back up is all part of the service.
We use the latest technology, such as
computer-based flexible manufacturing
systems, computerised bar stores and
information systems.
These control systems are supported by
advanced manufacturing facilities, for
example, a comprehensive s tator
manufacturing plant, to ensure that we always
produce pumps and parts to a consistently
high standard.
Attention to detail, combined with a wealth
of technical advice and CAPS (Computer
Aided Pump Selection), ensures clients will
receive a product that is quality assured.
A quality and reliability you can count on,
with the added reassurance that all products
are supplied and delivered on time - every
time.
It is the policy of Mono to achieve Total Quality
performance in meeting the requirements of both
external and internal customers. Total Quality
performance means understanding who the customer
is, what the requirements are, and meeting those
requirements, without error, on time, every time.
Mono Pumps Ltd. has been approved to ISO 9001
by Lloyds Register of Quality Assurance since 1990.
This continuing commitment to Quality is a major
element of Mono Pumps strategy of product
development. The Company manufactures products
within a Quality Management System which is
independently measured against industry recognised
standards throughout the world.
Quality is assured. Strict quality procedures
e n s u r e d i m e n s i o n a l l y a c c u r a t e
interchangeable parts. Quick delivery and
easy availability are provided by Mono Pumps
Ltd. or our international Distributor Network.
Full back-up services are also on hand to give
technical advice to customers and distributors
as and when necessary.
By using only genuine Mono spares you
automatically reduce the risk of pump
breakdown and preserve the full Mono
guarantee.
Mono spares result in lower fitting costs, greater
efficiency, reduced running costs and longer
pump life - as well as guaranteed quality and
value for money.
Service and Technology
Quality
Genuine Mono Parts
E
A
B
C
D
1” BSP SUCTION
C
D
A
B
E 1” BSP SUCTION
A
B
C
DE
1” BSP SUCTION
A
B
C
D
E
1” BSP SUCTION
DRIVE PUMP A B C D EVARIATION MODEL
LF052/LF102 444 699 80 213 334
A.C. MOTOR LF202 466 721 80 213 356
LF502 498 753 80 213 388
LF052/LF102 444 752 80 213 334
D.C. MOTOR LF202 466 774 80 213 356
LF502 498 806 80 213 388
LF052/LF102 444 846 90 164 334
GEARMOTOR LF202 466 868 90 164 356
LF502 498 900 90 164 388
LF052/LF102 444 876 90 359 334
VARIABLE SPEED LF202 466 898 90 359 356
LF502 498 930 90 359 388
1. All dimensions are given for guidance only. For full certified drawings refer to Mono Pumps., Audenshaw, Manchester.
2. All dimensions in millimetres unless otherwise stated.
3/4”
BS
P D
ISC
HA
RG
E
3/4”
BS
P D
ISC
HA
RG
E
Americas Europe Australasia
Mono Pumps LtdMartin Street, AudenshawManchester M34 5DQ EnglandTel: +44 (0)161 339 9000 Fax: +44 (0)161 344 0727e-mail: [email protected]
Published information other than thatmarked CERTIFIED does not extend anywarranty or representation, expressed orimplied, regarding these products. Anysuch warranties or other terms andconditions of sales and products shall bein accordance with Mono Pumps Limitedstandard terms and conditions of sale,available on request.
Your local Authorised Distributor:
Monoflo Incorporated16503 Park RowHoustonTexas 77084U.S.A.Tel: +1 281 599 4700Fax: +1 281 599 4733E-mail: [email protected]
Mono Pumps LimitedMartin StreetAudenshawManchester M34 5DQEnglandTel: +44 (0)161 339 9000Fax: +44 (0)161 344 0727E-mail: [email protected]
Mono Pumps (Australia) Pty Ltd338-348 Lower Dandenong RoadMordiallocVictoria 3195AustraliaTel: +61 (0)3 9580 5211Fax: +61 (0)3 9580 9036E-mail: [email protected]
Mono Pumps (New Zealand) LtdP.O. Box 71-02135 - 41 Fremlin PlaceAvondaleAuckland 7New ZealandTel: +64 (0)9 829 0333Fax: +64 (0)9 828 6480E-mail: [email protected]
© Mono Pumps Limited October 2001.Mono® and Flexishaft® are registeredtrademarks of Mono Pumps Ltd.Registered in England No. 300721
Please contact the nearest MonoOffice for details of your localauthorised distributor.
Mono Pumps Around the World
Mono®
a Halliburton company