TW Hydraulic Pump for Water
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.
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
Primarily stainless steel wetted parts; cast iron casing; ceramic pistons available on request
|Part Number||Supercedes||Cylinders||Flow||Flow @ 1450 RPM||Flow @ 1750 RPM||Pressure|