TW Hydraulic Pump for Water



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WATER PUMPS

Type TW

Specifically designed for water applications
Rotating swash plate design – 3 or 6 pistons
Pressure up to 1,040 bar
Primarily stainless steel contruction,
ceramic piston option available
Cool case for continuous operation
Vertical or horizontal mounting

For the majority of water applications the standard Water/Glycol pumps can be used. For more arduous applications the TW pump is available.

The high pressure Type TW hydraulic pump is specifically designed for water applications. Since water is the most demanding fluid, the Type TW pump can also be used with most other fluids including water-based solutions and oil-based fluids. Separation of the lubricating oil and the pumped fluid is achieved by the installation of a cavity between the cylinder block and the case. Bypass from the pistons is collected in this cavity and returned to the inlet side of the pump.

The TW pump comes with a cooled case for continuous running.


Installation

Rotation is bi-directional and the pump may be mounted horizontally or vertically.

A suction filter of 150 microns or better should be used. Finer filtration is desirable for the pump life, but is important that the inlet flowrate to the pump is not restricted and no more than -2 in.Hg is measured in the suction pipework under pumping conditions. Where possible a positive pressure should be maintained in the suction pipework under flowing conditions. When the pump is stationary the suction line should be kept under positive pressure to allow priming.

Important - pumps are delivered from Marshalsea with the case lubricating oil drained. Before the pumps are used, the case should be filled with Castrol Alphasyn PG150 to the level specified on the pump technical data sheet


Material

Primarily stainless steel wetted parts; cast iron casing; ceramic pistons available on request


Weight

47 Kg


Pump characteristics options

Part Number Supercedes Cylinders Flow Flow @ 1450 RPM Flow @ 1750 RPM Pressure
cc/rev l/m Usg/m l/m Usg/m bar
TW-00-00118-0870-3-4-CC-X-XX-XX 11470-51CC 3 1.18 1.71 0.451 2.06 0.545 870
TW-00-00160-0870-3-4-CC-X-XX-XX 11470-52CC 3 1.60 2.32 0.614 2.81 0.741 870
TW-00-00209-0870-3-4-CC-X-XX-XX 11470-53CC 3 2.09 3.03 0.801 3.66 0.967 870
TW-00-00236-0870-3-4-CC-X-XX-XX 11470-61CC 3 2.36 3.42 0.903 4.13 1.090 870
TW-00-00320-0870-3-4-CC-X-XX-XX 11470-62CC 3 3.21 4.65 1.228 5.61 1.482 870
TW-00-00416-0870-3-4-CC-X-XX-XX 11470-63CC 3 4.18 6.07 1.602 7.32 1.933 870
TW-00-00236-0870-6-4-CC-X-XX-XX 11480-51CC 6 2.36 3.42 0.903 4.13 1.090 870
TW-00-00320-0870-6-4-CC-X-XX-XX 11480-52CC 6 3.21 4.65 1.228 5.61 1.482 870
TW-00-00420-0870-6-4-CC-X-XX-XX 11480-53CC 6 4.18 6.07 1.602 7.32 1.933 870
TW-00-00472-0870-6-4-CC-X-XX-XX 11480-61CC 6 4.72 6.84 1.806 8.26 2.179 870
TW-00-00640-0690-6-4-CC-X-XX-XX 11480-62CC 6 6.41 9.30 2.455 11.22 2.963 800
TW-00-00832-0620-6-4-CC-X-XX-XX 11480-63CC 6 8.37 12.14 3.204 14.65 3.867 610

Additional Options


Construction

00 - Stainless Pistons
05 - Ceramic Pistons Fitted

Mount Options

H - Horizontal Mount
V - Vertical Mount

Inlet Connection Options

04 - 3/4" BSP Female Inlet
09 - 3/4" NPT Female Inlet
05 - 1" BSP Female Inlet

Outlet Connection Options

03 - 1/2" BSP Female Connection (Pressures up to 520 bar)
08 - 1/2" NPT Female Connection (Pressures up to 870 bar)
11 - 1/4" Medium Pressure Female Connection
12 - 3/8" Medium Pressure Female Connection
13 - 9/16" Medium Pressure Female Connection


Drawing


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