S TO C K CO M M E R C I A LP R E SS U R I Z E R™

Thrush Commercial Pressurizer™

Thrush Pressurizers™ are pressure booster packages that increase system pressure and maintain the flow necessary to meet changing system demands. The constant pressure feature is unique and sets Thrush Pressurizers™ apart from other booster packages. Constant pressure on the top floor of a building assures not only adequate flow but also, the efficient operation of water fixtures and appliances such as flush valves, washdown bowls, dishwashers, washing machines and shower heads.

Reliable, Efficient and In Stock Now…Pressure boosting, without constant control of pressure, will cause demand pressure fluctuations. This will result in either too little or too much operating pressure at critical fixtures and appliances resulting in improper operation of the devices.

Product Features• Completely assembled to simplify

installation

• Constant pressure at varying flows

• Flows up to 100 GPM

• Pressure boost to 55 PSI

Supplemental Pressurization of Upper FloorsIn cases where falling city pressure has made the main booster system incapable of maintaining proper pressure on upper floors of high-rise buildings, such as apartment houses, office buildings, hotels and motels.

Multiple Installations on Alternate Floors Thrush Pressurizers™ can provide incremental pressurization for blocks of floors. Eliminates the need for a large central booster system. Ideal for modular building techniques.

Hospital/Research FacilitiesAssure constant pressure at critical points of use such as laser equipment and lab cooling systems.

Industrial Point of Use Provide required pressure of process lines at point of use. Hydraulic pressure, cooling and flushing.

Jockey Pump ApplicationsProvides off peak/leak loss pressurization on fire systems, to keep large fire pumps from short cycles.

Off Peak Use To provide minimum pressure during periods of low usage (weekends) and keep main booster system off.

Typical Applications

PB Quick Sizing Chart

25 30 35 40 45 50 55

20 PB-50 PB-50 PB-50 PB-75 PB-75 PB-75 PB-100

25 PB-50 PB-50 PB-50 PB-75 PB-75 PB-75 PB-100

30 PB-50 PB-50 PB-50 PB-75 PB-75 PB-75 PB-100

35 PB-50 PB-50 PB-60 PB-75 PB-75 PB-75 PB-100

40 PB-50 PB-50 PB-60 PB-75 PB-75 PB-75 PB-100

45 PB-50 PB-60 PB-60 PB-75 PB-75 PB-75 PB-100

50 PB-50 PB-60 PB-60 PB-75 PB-75 PB-75 PB-100

55 PB-60 PB-60 PB-60 PB-75 PB-75 PB-75 PB-100

60 PB-60 PB-60 PB-60 PB-75 PB-75 PB-75 PB-100

65 PB-95 PB-75 PB-75 PB-75 PB-75 PB-75 PB-100

70 PB-95 PB-75 PB-75 PB-75 PB-75 PB-75 PB-100

75 PB-95 PB-75 PB-75 PB-75 PB-75 PB-75 PB-100

80 PB-95 PB-95 PB-95 PB-95 PB-100 PB-100 PB-100

85 PB-95 PB-95 PB-95 PB-95 PB-100 PB-100 PB-100

90 PB-95 PB-95 PB-95 PB-95 PB-100 PB-100 PB-100

95 PB-95 PB-95 PB-95 PB-95 PB-100 PB-100 PB-100

100 PB-95 PB-95 PB-95 PB-95 PB-100 PB-100 PB-100

Regulated Boost* (PSI)

Tota

l Flo

w (G

PM)

*The PB will make an additional 10 PSI at No-Flow Shut-Down to fill the tank.

Reliable, Efficient and In Stock Now…1. Pressure boosting is accomplished with Thrush end suction centrifugal pumps.Depending on the Pressurizer™ model, city pressure can be boosted to 55 psi and flows to 100 gallons per minute.

2. Pressure regulation is controlled with the unique Boostrol™ valve which regulates and maintains a constant pressure regardless of fluctuating supply pressure or changing flow demand. The Boostrol™ valve also provides other services. It is field adjustable to meet the application and is a check valve that prevents water from flowing back into the city supply. It also controls minimum run time

for the pump. This assures that whenever system demand requires the pump to start; it will run for a minimum of three minutes

no matter how short the demand is.

3. Water storage is contained in a pre- pressurized diaphragm-type hydropneumatic storage vessel which provides a pressurized reservoir of water for leak load and minimum usage. This keeps the pump from starting for small infrequent demands.

Pressurizer™ Construction

4. Operation of the Pressurizer™ is controlled with a pump pressure switch set with a 20 psidifferential system that starts at low end and shuts down at high end. The PB-60, 75, 95 and 100 Models have a 5 psi minimum low suction pressure switch to prevent negative pressure draw on city mains.

Standard Specifications

DESIGN

Pressure switch range PSIG

20-80 20-80 20-80 20-80 20-80

Maximum flow GPM 50 60 75 100 100

Maximum regulated pressure boost PSIG 35 35 50 35 55

Minimum suction pressure PSIG 5 5 5 5 5

MATERIAL

GTU utility pump* HorsepowerPhase

1 ½1

N/AN/A

N/AN/A

N/AN/A

N/AN/A

HPC E300 pumpHorsepowerPhase

N/AN/A

33

53

53

7.53

1 ½” Boostrol™ ValveFactory set atPSIG/GPM 30/25 45/30 50/35 45/50 55/50

Tank precharged PSIG 18 33 38 33 43

Low pressure cut-off switch N/A • • • •

Pump pressure switch set PSIG 20/40 35/55 40/60 35/55 45/65

STARTER PANEL

Enclosure NEMA 1 Transformer 208/230/460(PRI) 115 single phase(SEC) Horsepower Overload relay

N/A • • • •

N/A • • • •N/A • • • •N/A 3 5 5 7.5N/A • • • •

On/off switch N/A • • • •

Low suction alarm light N/A • • • •

Power on light N/A • • • •

Model PB-50 PB-60 PB-75 PB-95 PB-100

• Indicates included feature

*3 phase power model with starter panel is optional

Heating System

340 West 8th Street • P.O. Box 228 • Peru, IN 46970Phone: (765) 472-3351 • Fax: (765) 472-3968

www.thrushco.com

Thrush Co. Inc. has a policy of continuous product research and development and reserves the right to change design and specification without notice.

Part # 9636-1060 ©2010 Thrush Co. Inc. Printed in U.S.A.

Distributed By:

Standard Model

Dimensions

ODP Motor A B C Pipe SizeShipping Weight

PB-50 1.5 HP 41” 41.5” 22.5” 1.5” 205 Lbs.

PB-60 3 HP 41” 41.5” 22.5” 1.5” 325 Lbs.

PB-75 5 HP 41” 41.5” 22.5” 1.5” 348 Lbs.

PB-95 5 HP 41” 41.5” 22.5” 1.5” 348 Lbs.

PB-100 7.5 HP 41” 41.5” 22.5” 1.5” 362 Lbs.

Dimensional Data

PB-50

PB-60, 75, 95 & 100

Model ReferencePART NO. PB MODEL TANK VOLTAGE HZ. PH.

2200-32 PB-50 STD 208/230 60 1

2200-321 PB-50 STD 115/60/1 60 1

2200-41 PB-50-4 ASME 208/230 60 1

2200-46 PB-50-3 STD 208 60 3

2200-47 PB-50-1 STD 230 60 3

2200-48 PB-50-2 STD 460 60 3

2200-461 PB-50-5 ASME 208 60 3

2200-471 PB-50-6 ASME 230 60 3

2200-481 PB-50-7 ASME 460 60 3

2200-20 PB-60-7 STD 208 60 1

2200-16 PB-60 STD 230 60 1

2200-201 PB-60-8 ASME 208 60 1

2200-161 PB-60-9 ASME 230 60 1

2200-33 PB-60-1 STD 208 60 3

2200-35 PB-60-2 STD 230 60 3

2200-36 PB-60-3 STD 460 60 3

2200-64 PB-60-5 ASME 208 60 3

2200-65 PB-60-6 ASME 230 60 3

2200-66 PB-60-4 ASME 460 60 3

2200-59 PB-75-7 STD 208 60 1

2200-52 PB-75 STD 230 60 1

2200-67 PB-75-8 ASME 208 60 1

2200-53 PB-75-9 ASME 230 60 1

2200-34 PB-75-1 STD 208 60 3

2200-37 PB-75-2 STD 230 60 3

2200-38 PB-75-3 STD 460 60 3

2200-49 PB-75-4 ASME 208 60 3

2200-50 PB-75-5 ASME 230 60 3

2200-51 PB-75-6 ASME 460 60 3

2200-86 PB-95-7 STD 208 60 1

2200-87 PB-95 STD 230 60 1

2200-88 PB-95-8 ASME 208 60 1

2200-89 PB-95-9 ASME 230 60 1

2200-80 PB-95-1 STD 208 60 3

2200-81 PB-95-2 STD 230 60 3

2200-82 PB-95-3 STD 460 60 3

2200-83 PB-95-4 ASME 208 60 3

2200-84 PB-95-5 ASME 230 60 3

2200-85 PB-95-6 ASME 460 60 3

2200-90 PB-100-1 STD 208 60 3

2200-91 PB-100-2 STD 230 60 3

2200-92 PB-100-3 STD 460 60 3

2200-93 PB-100-4 ASME 208 60 3

2200-94 PB-100-5 ASME 230 60 3

2200-95 PB-100-9 ASME 460 60 3

Dimensions are subject to change based on voltage and tank configuration chosen. Refer to submittal sheets to obtain specific dimensions for model chosen. Shipping weights are estimated.