Water & WastewaterT R E A T M E N T S O L U T I O N S

The Two Best BrandsHoffman® and Lamson® brand centrifugals arerecognized around the world as the best blowerand exhauster solutions for wastewater treatmentapplications. For more than 100 years customershave trusted the quality performance these legaciesprovide. Anchored in tradition, this experiencedHoffman and Lamson blower/exhauster lineupremains the most comprehensive offering in theworld. Today, as the largest manufacturer ofblowers/exhausters, our number one prioritycontinues to be unparalleled responsiveness tomeeting customer needs. Our unwaveringcommitment to developing long-term customerrelationships, innovative product designs, andquality manufacturing is evident with over ahundred thousand installations. We are continuallyimproving delivery and response times, whilesetting the highest performance standards in theindustry. Never in the history of blower/exhaustermanufacturers has there been a company ascapable of delivering great value, exceptionalquality and quick turnaround on orders. So the nexttime you’re evaluating blower/exhauster options foryour wastewater treatment facility, remember thebest, Hoffman and Lamson brands and give us acall. Our professional sales representatives arehonored to assist you with your applicationchallenges and requirements. These factory trainedrepresentatives are conveniently located throughoutthe United States and around the world.

Your Wastewater Treatment Answer:

Water & WastewaterTREATMENT SOLUTIONS

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Hoffman & Lamson Brand CentrifugalsPROVIDE PROCESS AIR FOR WATER & WASTEWATER APPLICATIONS

WaterTreatmentFacility

Air Scour forFilter Backwash

Air Scour forFilter Backwash

Fluidized BedIncineration

Digester Aeration

Digester GasExtraction

Digesters

Influent

WastewaterTreatment Facility

Post Aeration

Aeration

Clarifiers

Aerated Grit Collection

Hoffman & LamsonMultistage Centrifugal SolutionsGardner Denver’s Hoffman and Lamson brandedmultistage centrifugals are the proven standard forwater and wastewater treatment applicationsrequiring continuous low-noise operation withminimal maintenance requirements. Primarily used foraeration and aerobic digestion, Hoffman and Lamsonmultistage centrifugals can be throttled via an inletbutterfly valve making them an excellent choice forcontrolling dissolved oxygen concentrations (DO) inthe wastewater. Hoffman and Lamson exhausters canalso be used in sludge digestion to exhaust the digestergases, for channel aeration and in filter backwashapplications.

Gardner Denver offers a wide range of Lamson andHoffman blowers/exhausters, each having its ownunique performance characteristics and design featuresto match your application requirements. Hoffman andLamson blowers/exhausters are available in completeengineered solution packages featuring electric, steamturbine or VFD drives.

TurboTron® (a Lamson Brand) Regenerative SolutionsThe Lamson TurboTron® regenerative blower/exhauster is designed to provide continuous flow, low noise andpulse-free air, with the versatility to perform in numerous water and wastewater, air and gas applications. Theregenerative solution features a revolutionary impeller design, achieving multistage compression with a singleimpeller. Since there is only one moving part and no timing gears, it is virtually maintenance free. The LamsonTurboTron regenerative blower/exhauster can be specified for use as aquiet choice for grit aeration, channel aeration, aerobic digestion anddigester gas booster applications. It is available as an individualblower/exhauster unit or as a complete engineered package.

• Airflow to 41,000 cfm

• Pressure to 22 psig

• Vacuum to 17.6 "Hg

• Airflow to 900 cfm

• Pressure to 13 psig

• Vacuum to 14 "Hg

Aeration Solutions

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Hoffman & Lamson Monitoring & Control SystemsWhen you’re responsible for a water or wastewater treatment plant, youneed control systems to properly operate your blowers/exhausters. It’simportant to protect vital equipment from conditions that may lead tocatastrophic mechanical failure, costly downtime or voiding yourmanufacturer’s warranty. At Gardner Denver, we engineer a variety ofmonitoring and control systems capable of providing you with theprotection and information you need to keep your operation running atpeak efficiency. Designed for wastewater system dissolved oxygen (DO)applications, our Master Dissolved Oxygen Control System (MDOCS)programmable logic control (PLC) system is the answer to controllingmore complex blower configurations found in wastewater treatmentoperations. Hoffman and Lamson monitoring and control systemssafeguard a variety of conditions that include motor current, motortemperature, blower vibration, bearing temperature, bearing oil level,discharge air temperature, inlet vacuum and outlet pressure.

Hoffman & Lamson Factory ServiceWarranty Renewal Program – THE Best Way to Protect Valuable AssetsOnly Gardner Denver offers this PreventativeMaintenance Program as your assurance that yourcentrifugal blower will run for years to come at peakefficiency. It starts with a qualifying service call by afactory technician. A factory warranty is issued for thefollowing year covering any failures. The annual cost isusually less than the cost of one emergency servicecall.

Factory RemanufacturedBlowers/Exhausters

Gardner Denver offers awide range of Hoffmanand Lamsonremanufactured blowersand exhausters availablefor immediate shipment.Remanufactured blowersare built to the sameexacting standards as our

new machines, are rigorously tested and carry thesame factory warranty. Remanufactured blowers offeran excellent cost-effective alternative to newmachines.

Factory RepairsFactory repair specialists completely disassemble,clean, inspect, re-balance and repair your blower to itsoriginal factory specifications. All repairs are doneusing genuine Hoffman and Lamson factory certifiedparts. When repairs are complete, each machine istested to factory standards and is covered by a newproduct warranty.

On-Site Repairs & ServicesGardner Denver understands the importance ofminimizing blower/exhauster downtime. Most repairscan be made on site by our factory trained servicetechnicians, located in strategic areas throughout thecountry. This saves you costly shipping charges anddowntime production losses. You can be assured yourblower is being repaired with genuine factory parts, and only Gardner Denver can give you a factorywarranty after the repair.

Gardner Denver factory-trained technicians are alsocapable of other on-site services to optimize blowerlife and performance, reduce downtime and increaseproductivity. These field services include laseralignment, certified vibration analysis, and operatorand maintenance training.

Water & WastewaterTREATMENT SOLUTIONS

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• AEON® Centrifugal Blower Lubricants

• Performance and Application MatchedAccessories

Quality parts can only provide years ofservice life if they are properly lubricated.Insist on Hoffman and Lamson AEON CF-46Lubricating Oil and AEON LubricatingGrease. Both AEON CF-46 Lubricating Oiland AEON Centrifugal Lubricating Greaseare formulated for thermal stability andexceptional oxidation resistance to endurehigh blower temperatures and protectagainst corrosion.

Genuine Hoffman & LamsonPARTS, ACCESSORIES & LUBRICANTS

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Only Gardner Denver offers the most successful and comprehensivemultistage centrifugal blower offering the world has ever known. Withseveral hundred thousand installations worldwide, the Hoffman and Lamsonbrand heritage, brings over a 100 years of quality innovation and experienceto our customers. Hoffman and Lamson multistage centrifugal blowersrepresent a proven history of performance and the assurance ofdependability with exceptional quality, design, materials and workmanship.

Whether you’re treating water for a clean water supply or treatingwastewater, Gardner Denver offers the widest and most comprehensiverange of blowers/exhausters and engineered package solutions of anymanufacturer in the world. At Gardner Denver we know that everytreatment facility has its own unique design and output capacities. Asexperts in blower technology, we can match these requirements. From ourHoffman and Lamson multistage centrifugals to our regenerativeblowers/exhausters, Gardner Denver offers the latest technology best suitedto maximize productivity and minimize energy costs for your operation.

All of our blowers/exhausters, monitoring control systems and engineeredpackages represent the highest quality workmanship in the industry usingthe finest materials, state-of-the-art machining equipment, assembly andtesting processes available today. Our dedication to design and qualityassures you that the product you get is the best in the industry. Our designengineers incorporate the features most important to you, using the mostadvanced engineering software available.

What’s more, we offer the latest in application specific controls andmonitoring equipment, factory service programs, genuine Hoffman andLamson parts and quality lubricants. Specify Gardner Denver, your onesource for water and wastewater treatment application solutions.

Please recycle after use.

www.HoffmanandLamson.cominfo.hoffmanlamson@gardnerdenver.com

Gardner Denver Nash PO Box 130 Bentleyville, PA 15314 USANew Equipment Sales: (800) 543-7736 Aftermarket Parts Sales: (800) 982-3009

Phone: +1 724-239-1500 Fax: +1 724-239-1502

©2011 Gardner Denver NashCF-W-MAIN-A-1010

Specifications subject to change without notice.

Hoffman andLamson multistagecentrifugalblowers/exhausters

Water & Wastewater Treatment Solutions

Turbotronregenerativeblowers/exhausters

Monitoring andcontrol systems

Factory service,genuine GD parts