The high pressure Type X hydraulic pump is available with either three or six axial pistons actuated by a single rotating swash plate.
The six piston version can also be supplied with duplex deliveries which may be used for simultaneous high and low pressure applications when used in conjunction with an automatic unloading valve. Other output combinations are available.
SimplexDuplex
Various combinations of flows and pressures are possible within the 10 kw range up to a maximum of 690 bar (10,000 psi) at 6.96 litres/min (1.53 gpm) – see table on the right. Special high pressure versions are available for pressures up to 1,000 bar.
Installation
Rotation is bi-directional and the pump may be mounted horizontally or vertically (shaft up) using a three piece flexible drive coupling between the pump and prime mover. If vertical mounting is selected, our Technical Department should be consulted.
A suction filter of at least 125 microns should be used, and care should be taken to ensure that the filter is of adequate size and does not cause more than 300 mm (12?in) Hg depression at the pump suction port when operating at full flow. A return line filter of 10 microns rating should be fitted. Pipes should be of sufficient size to give not more than 3.70 m/sec (12 ft/sec) fluid velocity in the delivery line and not more than 1.2 m/sec (4 ft/sec) in the suction line.
We recommend that the fluid reservoir should be between 50 mm (2 in) and 3 m (10ft) above the suction port. A safety relief valve set at the maximum pump rating should be fitted immediately downstream of the pump delivery port.
Material
Cast iron casing. Carbon steel cylinder block and shaft.
Fluids
A mineral-based oil is recommended with additives to resist corrosion, oxidisation and foaming. |
