20425577
5-2005/Rev 0
4-1
SECTION 4
LOW PRESSURE WATER SYSTEM
4.1 Overview
The low pressure water system, cutting water supply circuit, supplies the intensifier with the
required cutting water flow and pressure.
4.2 Cutting Water Supply Quality
The quality of the inlet cutting water supply is one of the most important factors affecting
component life and performance. Impurities in the water create grinding and corrosive effects on
all components. See Section 10, Specifications, for details regarding water quality standards.
4.3 Operation
Cutting water is introduced through the 1/2-inch NPT connection on the bulkhead of the machine
and passes through the normally closed, inlet water solenoid valve. When the control power is
turned on, the solenoid valve opens and allows water to flow through the valve and then to the
sealing head check valves on each end of the intensifier. Inlet cutting water pressure should be a
minimum of 60 psi (4 bar) flowing.
4.4 Optional System Components
An optional low pressure water filter removes debris from the inlet cutting water to prevent
contaminates from damaging the check valves and seals in the intensifier. The optional booster
pump increases the inlet cutting water pressure to ensure proper supply to the intensifier
assembly.
Operation with Optional Booster Pump and Water Filter
Inlet cutting water pressure, passing through the water solenoid valve, is displayed on the supply
gauge mounted on the inlet manifold. Inlet cutting water pressure should be a minimum of 35 psi
(2.4 bar) flowing.
Cutting water then passes through the filter assembly, consisting of a filter body and a 10-micron
absolute filter. A bleed valve on the top of the filter body releases air inside the housing.
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