Type XW 11198/11199/11200
Hydraulic pump for water/glycol applications

The high pressure Type XW hydraulic pump is suitable for a wide range of 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 pump is available with either three or six pistons. The six piston version can be supplied

with duplex deliveries which may be used for simultaneous high and low pressure applications when used with an automatic unloading valve. Additional variations are possible by varying the input speed to a maximum of 1,800rpm.

Pressure and flow combinations Pump No. No. of pistons size and stroke Theoretical flow (cc/rev) Max pres. (bar) Full stroke pumps 11198 - 40 - HL 3 x 0.437 4.80 690 11198 - 41 - HL 3 x 0.500 6.25 663 11198 - 42 - HL 3 x 0.562 7.90 524 11199 - 43 - SL 3 x 0.625 9.79 423 11199 - 44 - SL 3 x 0.687 11.79 351 11200 - 41 - SL 6 x 0.500 12.50 331 11200 - 42 - SL 6 x 0.562 15.80 262 11200 - 43 - SL 6 x 0.625 19.58 211 11200 - 44 - SL 6 x 0.687 23.58 175 1/3 stroke pumps 11198 - 50 - HL 3 x 0.437 x 1/3 1.59 870 11198 - 51 - HL 3 x 0.500 x 1/3 2.08 690 11198 - 52 - HL 3 x 0.562 x 1/3 2.63 524 11199 - 53 - SL 3 x 0.625 x 1/3 3.26 423 11199 - 54 - SL 3 x 0.687 x 1/3 3.93 351 2/3 stroke pumps 11198 - 60 - HL 3 x 0.437 x 2/3 3.20 870 11198 - 61 - HL 3 x 0.500 x 2/3 4.16 690 11198 - 62 - HL 3 x 0.562 x 2/3 5.26 524 11199 - 63 - SL 3 x 0.625 x 2/3 6.53 423 11199 - 64 - SL 3 x 0.687 x 2/3 7.86 351

Material Stainless steel wetted parts; cast iron casing. Weight 40 Kg. Installation Rotation is bi-directional and the pump may be mounted horizontally or vertically. 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 Hg depression. Pipes should be of sufficient size to give not more than 3.70 m/sec velocity in the delivery line and 1.20 m/sec in the suction line. The suction line should be kept under positive pressure when the pump is stationary to allow priming. We recommend that the fluid reservoir should be between 50 mm and 3 m above the suction port.