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SECTION 9
HIGH PRESSURE WATER SYSTEM
9.1
Overview
The high pressure water system is supported by both the cutting water supply circuit and the
hydraulic circuit. Cutting water of sufficient flow and pressure is routed from the cutting
water supply circuit to the intensifier where it is pressurized up to 55,000 psi (3,792 bar) and
delivered to the cutting head.
The directional control valve in the hydraulic system creates the stroking action of the
intensifier by sending pressurized hydraulic oil to one side of the hydraulic cylinder or the
other. As the flow is sent to one side, hydraulic fluid is returned to the reservoir from the
opposite side.
Figure 9-1: High Pressure Water System Circuit
1 Cutting Water In
6
Hydraulic Cylinder
11 Drain
2 Inlet Check Valve
7
Hydraulic Piston
12 Air In
3 Sealing Head
8
Discharge Check Valve
13 Cutting Water Out
4 Soft Seal End Cap
9
Attenuator
5 High Pressure Cylinder
10 Safety Dump Valve
System components include a double-ended hydraulic cylinder; reciprocating piston assembly;
high pressure cylinders attached to each end of the hydraulic cylinder; two plungers, sealing
heads and soft seal end caps; a one liter capacity attenuator, and a safety dump valve.
Sophisticated check valves and seal assemblies ensure hydraulic oil, and the low pressure and
high pressure water travel in the appropriate direction. Warning and shutdown sensors
monitor system temperature and fluid levels to safeguard against component damage.
20480314
7-2011/Rev 02
9-1