T E C H N I C A L D A T A S H E E T

Technical DataNumber of stages: 2-9Operating speed: 3550 rpmCasing design pressure: 25 psigInlet connection: 8" (203mm) flange 125lb/150lbANSI drilled and tappedOutlet connection: 8" (203mm) flange 125lb/150lb ANSIdrilled and tappedSeals: labyrinth (single carbon ring available)Bearings: 6312/6312 ball, minimum L10 bearing lifeof ten years per AFBMALubrication: grease (standard) or oil (optional)Drains: 3/8 NPT with plugsImpeller diameter: 24" (610mm)Impeller tip speed: 372 ft/sec (113 m/sec)First critical speed: 4150 rpm for maximum stagesVibration: .19 in/sec maximum

AccessoriesFull line of standard and custom electrical control panelsfor packaged systems – UL and CUL Listed availableDissolved oxygen control systemFlexible sleeve connectors and expansion jointsFilters and silencersButterfly valves and check valves

Product Features

Performance Range

Performance at Standard Density(Air at 68°F, Relative Humidity of 36%, Inlet Pressure 14.7 psia) 3550 rpm

0 850 1700 2550 3400 4250 5100 5950110.3

96.5

82.7

68.9

55.1

41.4

27.6

13.8

0

FLOW RATE (m3/hr)

FLOW RATE (icfm)

161514131211109876543210

DISC

HARG

EPR

ESSU

RE(p

sig)

DISC

HARG

EPR

ESSU

RE(k

Pa)

0 500 1000 1500 2000 2500 3000 3500

Materials of Construction• Casing and heads: cast iron Class 30• Tie rods: AISI 1035 carbon steel• Interstage sealing: silicone rubber• Shaft: AISI 1144 carbon steel• Impellers: ASTM A319 cast aluminum• Base: A36 structural steel• Finish: epoxy primer with urethane topcoat• Isolation pads: synthetic rubber

The Spencer Turbine Company � 600 Day Hill Road, Windsor, CT USA 06095 � TEL 800-232-4321 � 860-688-8361 � www.spencerturbine.com

Power Mizer® Series 3500Cast Multistage Centrifugal

Blowers and Exhausters

Rugged, energy efficient multistage blowers and exhaustersThe Power Mizer® Series 3500 employs proven Spencer technologyto meet heavy-duty air and gas handling requirements at peak energyefficiency.

Spencer’s multistage centrifugal blowers and exhausters have a longtrack record of performance. The product line can be paired with Spencer’svariable frequency drives (VFD), operator interface, a variety of controlsystem options, and blower protection devices for optimum energyefficiency. It is ideal for maximum uptime in demanding environments.

Applications include petrochemical refineries/sulfur recovery; mining/flotation; chemical/combustion air or process air; and municipal andindustrial wastewater treatment/aeration.

Spencer’s specially engineered aerodynamic components mean smoother,more efficient airflow from blower inlet to discharge. The Power MizerSeries 3500 is a cost-effective solution providing long-term power savings.

Note: Specifications may vary and change without notice.º

1.00 (25.4) Isolation Pad

B

8.00(203)

26.00(660)

44.75(1137)

8.50(216)

8" OUTLET8" INLET

38.16(969)

17.66(449)

A

28.00(711)35.32(897)

Dimensions: Shown in inches / (mm)Power Mizer® Series 3500

Date:_________________________________________

Signed:_______________________________________

Customer Name: _______________________________

Customer Order No.: ____________________________

Project Name:__________________________________

Sales Order No.: ________________________________

For Customer Approval Certified Correct

TDS-814A Copyright ©2010 The Spencer Turbine Company 020110KBA1.75

The Turbine Company, 600 Day Hill Road, Windsor, CT 06095-4706

Blowers & Vacuum Systems with an Engineering Edge

TEL 800-232-4321 � 860-688-8361 � FAX 860-688-0098 � www.spencerturbine.com

Outlet Position (As viewed from outlet end)1 2 3

Inlet Position (As viewed from inlet end)A B C

Direction of Rotation

CS32

CS33

CS34

CS35

CS36

CS37

CS38

CS39

2

3

4

5

6

7

8

9

15.69

19.81

23.94

28.06

32.19

36.31

40.44

44.56

398

503

608

713

818

922

1027

1132

64

72

88

88

96

96

106

106

1626

1829

2235

2235

2438

2438

2692

2692

2130

2673

3196

3730

4263

4795

5328

5861

966

1212

1450

1692

1934

2175

2417

2659

*May vary depending on motor size

ModelNo.

No. ofStages A B*

Dimensions

inches mm inches mm lb kg

Weight(without motor)

Spencer may make improvements and dimensional changes toequipment designs based on market trends and requirements.

For product selection assistance, please emailmarketing@spencer-air.com or visit our website atwww.spencerturbine.com to locate the Spencerrepresentative in your area.

º

INLET OUTLET

13.75(349)