GE P&W Pumps SS User Manual

Tonkaflo* Pumps

SS Series

• Wide Selection of pump models is available.

• Separate Bearing Frame increases pump reli-

Figure 1: Tonkaflo SS Series pumps

As the industry standard for reverse osmosis (RO),
Tonkaflo SS Series pumps (Figure 1) are backed by
years of proven experience. The SS Series is a
stainless steel multi-stage centrifugal pump with
Noryl* plastic impellers. To reduce pump wear, SS
Series pumps operate at lower speeds than single­stage pumps while achieving equivalent boost
pressures. The SS Series’ flexible, multi-stage design
allows users to achieve their exact pressure re­quirements by adding or removing stages.

Specifically designed to meet the challenges of
industrial membrane systems, SS Series pumps
excel in any high-pressure application. TONKAFLO
SS Series pumps are ideal for water boost and
recirculation in buildings, high-pressure transfer,
and spray applications.

• Customized SS Series pumps are available on a

• Industry Standard Mechanical Seal on pump

• High Pressure Reverse Osmosis - The SS Series

Table 1: Operating Specifications

Fact Sheet

also simplifies service of both pump and bear­ing frame, and permits design flexibility when
positioning piping.

There is an SS Series pump to fit any pressure
or flow.

ability by eliminating thrust load on the motor.
In addition, this feature allows the SS Series
pumps to be powered by standard motors.

pre-approved and limited basis. Contact your
local sales office for availability and pricing.

inlet delivers higher boost pressure capability
and longer seal life, and simplifies specifying
and finding replacement parts.

pumps feature the K-Bearing frame which
eliminates alignment problems by close­coupling the pump to motors up to 100 Hp.

Features and Benefits

• Corrosion-Resistant Construction including
Noryl plastic diffusers and impellers and 316
stainless steel pump case and shaft ensure
long-lasting performance.

• Modular Liquid End allows service of the me-
chanical seal without disassembling the liquid
end of the pump. The SS Series’ modular design

Find a contact near you by visiting www.ge.com/water and clicking on “Contact Us”.

* Trademark of General Electric Company; may be registered in one or more countries.

©2010, General Electric Company. All rights reserved.

FS1127EN.doc Jan-10

General Specifications

Table 2: Standard Models Available

Table 3: Materials of Construction

1

Teflon is a registered trademark of DuPont

Connections

• 0.75-inch (19.1 mm) FNPT (500 Series)

• 1.25-inch (31.8 mm) Victaulic (1800, 2800 Series)

• 3.0-inch (76.2 mm) Victaulic (5500, 8500, 12500

Series)

• 4.0-inch (101.6 mm) Victaulic-Inlet (24000
Series)

• 3.0-inch (76.2 mm) Victaulic-Discharge (24000
Series)

Pump Specifications

Figure 3: Pump Specifications

Table 4: Direct Coupled Pumps

Table 5: Close-Coupled Pumps

Power

2

• 60 Hz - 3-phase (208-230/460 volt)

• 60 Hz - 1-phase (115/208-230 volt)

• 50 Hz - 3-phase (190/380 volt)

• 50 Hz - 1-phase (110/220 volt)

2

575 volt and 380 volt 60 Hz as well as 220 and 415 volt 50 Hz are available on request.

Table 6: K-Bearing Frames

Figure 2: Performance Curve (60Hz) (Logarithmic Scale)

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