w o r l d w i d e

I n n o v a t i o n

S e r v i c e

E x p e r i e n c e

W O R L D W I D E

I n n ov a t i on

S e r v i c e

Ex p e r i enc e

W O R L D W I D E

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“At HSI, we are committed to exceeding our customers’ expectations through a processof continual quality improvement.”

– DICK PEARSALL, PRESIDENT

A TRADITION OF SERVICEA FUTURE OF INNOVATION

Manufacturer of Multistage Centrifugal Blowers

HSI is an ISO 9001:2000 certified manufacturer of multistage centrifugal blowers and exhausters. Our factoryin Houston, Texas houses our state-of-the-art engineering, manufacturing and testing capabilities as well as thelargest multistage blower parts inventory in the world. This allows us to supply our customers with innovative,highly engineered products with very competitive lead times and the best customer service in the industry.

Over thirty years ago HSI was founded as a balancing and rotating equipment repair company servingmunicipal and industrial customers in the Texas Gulf Coast area. We soon discovered a demand for better servicein the multistage centrifugal blower market. When our customers were frustrated by long repair lead times, weresponded by manufacturing and warehousing a large parts inventory. When our customers needed more efficientand reliable machines, we responded by developing our own innovative line of blowers and exhausters. Todaywhen our customers bring us difficult applications, we respond with cutting edge solutions.

At HSI we work to continually improve the performance, efficiency and reliability of our blowers. In orderto do this we have made significant investments in the best people, facilities and equipment in the industry.Our engineers use the latest design tools including 3D Modeling, Computational Fluid Dynamics and FiniteElement Analysis to pinpoint areas where we can make improvements. Our commitment to R&D, QualityControl, Product Testing, Application Engineering and Inventory Control is driven by our desire to offer ourcustomers the most advanced multistage centrifugal blower products available.

HSI is a global company with representatives and installations on six continents. Our Sales and Engineeringdepartments are trilingual in English, Spanish and Chinese. Our Houston facility is excellently located to servicethe North American and Latin American markets while our Asian representatives provide full technical supportto the Pacific Rim.

We know that outstanding customer service is what has built HSI. Our people are on call at all times tohelp with urgent situations. We pride ourselves in responding quickly to our customers’ requests for informationand quotations. In most cases we can provide the needed information on the same day you contact us. At HSIwe are constantly working to excel. Contact your HSI representative and find out how we can make a differencein your next project.

3

4

A

B

C

D

1.18

2.20

1.26

A

A

SCALE 3/10

NOTE: 1. SHAFT SIZE: n4.630/4.6292. NUMBER OF VANES: 16

SECT

SC

ENGINEERING AND TECHNOLOGY

Committed to Excellence

At HSI we have made a commitment to be the technical leader in our industry. We have achieved our dominantposition in this area through continued investment in engineering personnel, the latest design tools, advancedinspection and testing technology, and ongoing R&D projects.

4

EExxcceeeeddiinngg IInndduussttrryy SSttaannddaarrddssUsing the most up to date design technology including solid

modeling, finite element analysis and computational fluid

dynamics, our team of engineers is constantly improving our

blowers and exhausters.Through participation in ASME, API,

WEF, NACE, ISO and other standards writing organizations

we remain current with the developments in the industry

and the requirements of our customers. All of our technical

innovations are thoroughly tested using our new ASME

PTC-10 compliant test lab.

123

PART NO.

150885012, MACHINING

TITLE

HSI 088 SERIESIMPELLER, BACKWARD CURVE

SIZE

HOUSTON SERVICE INDUSTRIES, INC.7901 HANSEN, HOUSTON, TX 77061

DRAWN BY:

MATERIAL:

THIRD ANGLEPROJECTION

DIMENSION TOLERANCE (INCH): .XX `.010, .XXX `.005DIMENSION TOLERANCE (MILLIMETER): .X `.30, .XX `.13ANGLE: X `1~MACHINED SURFACE ROUGHNESS: 63 MICROINCHES, 1.6 MICROMETERSDIMENSIONING AND TOLERANCE PER ANSI Y14.5M - 1994

CHECKED BY:

.19

\U+22054.63

.75

.18

n24.00

n10.15

n4.63

.30

REVISION HISTORY

REV DESCRIPTION DATE

3D VIEW

SCALE 0.35 : 1

TION A-A

CALE 1 / 2

CCoommppuutteerr AAiiddeedd DDrraaffttiinngg && SSoolliidd MMooddeelliinngg DDeessiiggnnThe basis for an effective program of computer simulated

design is a powerful and flexible three dimensional solid modeling

capability. At HSI we use the industry leading Inventor package

by AutoDesk®. This technology gives us major advantages

including: complete three dimensional visualization, immediate

understanding of the impact of design changes on the whole

machine, greatly reduced design cycle times, compatibility with

our vendors’ computer aided manufacturing systems, improved

drawings for our customers and complete interface with the

latest CFD and FEA design packages.

FFiinniittee EElleemmeenntt AAnnaallyyssiiss ((FFEEAA))The Ansys MechanicalTM finite element analysis software

package and the solid models created in InventorTM allow our

engineers to quickly investigate design issues and initiate

improvements which would be impractical to pursue without

these tools. We use FEA for materials selection, rotor modal

analysis, critical speed calculations, torsional analysis, stress

concentration identification, high cycle fatigue analysis, crack

propagation simulation, frequency response calculations and wall

thickness optimization.

CCoommppuuttaattiioonnaall FFlluuiidd DDyynnaammiiccss ((CCFFDD))One of the most powerful design technologies available is

Computational Fluid Dynamics. Simulations that were too

cumbersome just five years ago are now routine. We use the

CFDesign® package by Blue Ridge Numerics which interfaces

with AutoDesk® InventorTM to enable our engineers to quickly

iterate our solid model designs based on extensive CFD “what-if?”

analysis. CFD allows us to optimize blower performance and

efficiency by analyzing velocity distributions and flow patterns in

order to eliminate recirculation zones, reduce convergence losses

and minimize flow stagnation areas among other items.Also, with

CFD, we are able to analyze flow stream thermodynamic effects

on the physical properties of the materials we select.

5

ONGOING RESEARCH AND TESTING

6

Research and Development

Our ongoing research and development program ensures that we continually improve our product offerings.We develop one to two new models per year in order to expand our product line performance envelope. At any

given time we have numerous R&D projectsunderway which focus on improving theperformance and efficiency of our existingblower models. Examples of this are: new impeller designs which maximize efficiency, rotor dynamic improvements tofacilitate additional stages, changes to casinggeometry to improve flow characteristics,materials selection for increased durability,and improved controls designs.

TTeessttiinngg FFaacciilliittiieessEvery new design we develop, as well as every blower we build, is tested in our

automated, ASME PTC-10 compliant test lab. It is this validation that completes

the design cycle and ensures that we meet the design objectives we set for

ourselves. Also, because we test every blower we build, this facility is an important

component of our Quality Management System, allowing us to monitor and

maintain product quality over the long haul.

We are committed to creating a test facility that will allow us to meet the

needs of customers world wide. Some highlights of our test capabilities are:

power capacity up to 2,000 hp, variable frequency drives, multiple voltages from

230 to 10,000, ASME PTC-10 performance testing, in line torque meter,

vibration analysis, sound testing, real time automated data collection and ample

accommodations for test witnessing. In addition to final product testing we

perform a number of in-process tests such as incoming parts inspection, materials

testing, hydrostatic pressure testing, blower leak testing, impeller and rotor

dynamic balance testing, etc.

7

A COMPLETE LINE OFAUTOMATED CONTROLS

We Make it Personal

HSI understands that every application is different, which is why we offer controls that are easy to customize toyour specific installation.

SSttaannddaarrdd CCoonnttrrooll MMooddeellssOur standard control models offer many

options from standard analog controls to

panels with full touch screen interfaces. They

can accommodate a variety of data inputs

such as flow, pressure, temperature and

dissolved oxygen. These models can modulate

automated throttling valves, variable frequency

drives, blow off valves, etc. These units can also

be programmed to communicate with almost

any type of plant master control systems.

In addition to these standard controls,

HSI has developed custom control systems

to manage entire processes, often using VFD

drives. These systems are advanced enough

to monitor and control the entire process.

The use of VFD to optimize the flow rate

allows the blower or exhauster to reach

maximum efficiency.

INSTALLATION MARKETSAND APPLICATIONS

Multistage Centrifugal Blowers in Municipal and Industrial Applications

HSI has thousands of installations located around the world. In applications ranging from 100 cfm to 40,000cfm, air service to sour gas, simple on/off controls to variable frequency drives with complete process control,we have the experience to meet your project requirements.

8

PPoowweerr IInndduussttrryy

Flue Gas Desulphurization

Oxidation Air

Coal Gasification

Fluidized Bed

Tail Gas Recovery

EEnnvviirroonnmmeennttaall

Landfill Gas

Soil Vapor Extraction

Coal Mine Venting

Methane Disposal

Flare Systems

Leaching Process

Gas Boosters

IInndduussttrriiaall

Pulp and Paper Industry

Air Knife Drying

Air Convection Drying

Blow Off Systems

Fermentation

Galvanization Process

Printing Systems

Wind Tunnel

Carbon Black

Steel Plating

Black Liquor Recovery

Michigan, U.S.A. North Carolina, U.S.A.

Hong Kong, China

Chad,Africa

British Columbia, Canada

9

WWaatteerr aanndd WWaassttee WWaatteerr TTrreeaattmmeenntt

Basin Aeration

Air Scouring

Digester Gas

Filter Backwash Systems

Grit Chamber Aeration

Lagoon Aeration

Wastewater Treatment

SBR/MBR

VVaaccuuuumm

Central Vacuum

Clean Room Systems

Pneumatic Conveyors

Source Capture

Dust Collection

Food Products

Pharmaceuticals

Breweries

PPeettrroolleeuumm && CChheemmiiccaall IInndduussttrryy

Sulphur Recovery

Refinery Tail Gas

Sour Gas

Offload Gas Recovery

Gas Boosters

Vapor Control

Thermal Oxidation

Texas, U.S.A.

Maturin,Venezuela

Saltillo, Mexico

Dalian, China

Ontario, Canada Campana, Argentina

Washington, U.S.A.

DURABILITY ANDPERFORMANCE

TTiiee RRooddss High strength steel.

JJooiinntt SSeeaall RTV silicone.

BBlloowweerr HHoouussiinnggss Cast iron ASTM A48 grade 25/30.

Ductile iron and other materials

also available.

AAiirr DDeefflleeccttoorr RRiinngg Stainless steel.

EExxtteerrnnaall CCooaattiinngg Two part epoxy.

IInntteerrnnaall CCooaattiinngg Severe duty corrosion resistant coatings available.

IImmppeelllleerrss Cast aluminum ANSI AA356 or fabricated

aluminum on some models. Stainless steel and

other alloys also available.

AAiirr SSeeaallss Labyrinth seals standard. Carbon ring,

mechanical, nitrogen purged and other

seals also available.

SShhaafftt Carbon steel AISI 4140.

Stainless steel available.

LLuubbrriiccaattiioonn Grease or oil.Water cooled also available.

BBeeaarriinnggss Ball bearings, 10 year

minimum life per AFBMA B-10 standard.

10

11

Maximize© Sizing Software

Our IT and engineering personnelhave developedMaximize© to assist inblower and exhausterselection. Maximize isa proprietary softwarepackage which hasbeen designed toallow our applicationsengineers to quicklyreview a large universe of possible selections and isolate those that best fit our customers’ design requirements. With built-in flexibilityregarding units of measure, ambient conditions, gas mixtures, methodsof throttling, performance curve generation and output formatting,Maximize is the perfect tool with which to answer our customers’blower sizing questions.

0 200 350 500 1000 2000 2500 5000 7500 10000 12500 17000 20000 25000 35000 42000 45000 60000 70000

0 100 200 300 750 1250 25000 3000 4000 6000 8000 10000 12000 15000 20000 25000 30000 35000 40000

25

20

15

10

5

0

5

10

15

20

25

175

140

105

70

35

0

125

250

375

500

625

31

5152 61

81 82 86 88126

141

187186

246

VA

CÍO

(m

mH

g)P

RE

SIÓ

N (

kPa)

VA

CÍO

(pu

lgad

as H

g)

VOLUMEN (SCFM)

VOLUMEN (m3/hr)

PR

ES

IÓN

(P

SIG

)

BLOWERSAND EXHAUSTERS

12

MMooddeell 6611• Number of stages: 1 to 9

• 6� inlet, 6� discharge

• Flow range:

400-2,200 cfm

• Pressure range: 11 psi /10�hg

• Horsepower range:

5-200



• Flow range:

600-3,000 cfm



5-250



• Flow range:

300-1,300 cfm



5-100



• Flow range:

200-1,100 cfm



5-100



• Flow range:

0-300 cfm



1-20A Quality Lineup

HSI offers a full range of products with over 13 modelsto choose from. We have the right blower for your application today and our R&D department is developingnew models to meet your needs tomorrow.

13



• Flow range:

750-3,500 cfm



5-250



• Flow range:

500-4,400 cfm



10-350



• Flow range:

500-4,500 cfm

• Pressure range: 21psi /18�hg


10-400



• Flow range:

1,000-8,250 cfm



25-500



• Flow range:

3,500-12,000 cfm



40-700



• Flow range:

2,000-22,000 cfm



150-1,750



• Flow range:

2,500-30,000 cfm

• Pressure range: 21psi /17�hg


200-2,500



• Flow range:

3,000-40,000 cfm



250-3,000

PARTS AND SERVICE

Professional Service with the Largest Inventory of Parts

HSI’s commitment to service truly differentiatesus from our competitors. We are availabletwenty-four hours a day including weekendsand holidays. Our service staff has over 125years of experience servicing blowers in alldifferent types of applications. While we relyon this experience, our service staff undergoesextensive and continual training to stay up todate on new blowers and applications.

This commitment to service does notstop with the most knowledgeable serviceteam in the industry. We also have the largestinventory of multistage centrifugal blower

parts in the world. In addition to parts for HSI blowers, we stock parts for our competitors’ blowers. We callthis our JIC (just in case) inventory system and it saves our customers from costly down time when they arein a hurry for a single part or a whole blower.

14

7901 Hansen

Houston, Texas

77061

713-947-1623

713-947-6409 Fax

1-800-725-2291

www.hsiblowers.com

[email protected]

ISO DocumentE-SL-002, Rev. 02 02-28-07

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