SECTION 6
LOW PRESSURE WATER
Feb 2001
p. 6-1
05132535
Section 6 LOW PRESSURE WATER SYSTEM
6 Features
The SL-IV Waterjet Pump is equipped with two low pressure circuits:
• Cutting water supply for HP intensifier assembly.
• Cooling water supply for the oil-to-water heat exchanger.
The low pressure water system supplies the pump with the following:
• Water of sufficient cleanliness and pressure to the inlets of the two (2)
HP cylinders.
• Cooling water of sufficient flow rate and low temperature to the oil-to-
water heat exchanger.
1 Motor, Electric 19 Valve, Water Modulating
2 Pump, Main Hyd 20 Thermal Bulb, Water Modulating
3 Pump, Recirculating Hyd 29 Pressure Gage, Cutting Water
4 Reservoir, Hyd 30 Intensifier Assy
5 Filter Assy, Hyd 31 Valve, LP Water Relief
6 Heat Exchanger, Oil-to-Water 32 Valve, HP Water Dump
18 Filter, LP Water
6.1 Oil Cooling Water Supply
The oil cooling water supply circuit includes the water modulating valve.
The maximum flow rate of the cooling water is specified in Section 11
“Specifications” under “Hydraulic Oil Cooling.” A minimum inlet
pressure of 2.8 bar (40 psig) and 21 deg C (70
0
Fahrenheit) maximum