Section 4
Low Pressure Water System
20479275
9-2010/Rev 02
4-2
Cutting water then passes through a strainer to remove debris before the water enters the booster
pump. The booster pump increases the pressure to the relief valve setting, up to a maximum of
120 psi (8 bar) to ensure proper supply to the intensifier assembly.
Pressurized water passes through the filter assembly where debris is removed to prevent
contaminates from damaging the check valves and seals in the intensifier. The filter assembly
consists of a filter head, housing and a 10 micron absolute filter. A bleed valve on the top of the
filter head is used to release air inside the housing.
If the booster pump pressure entering the outlet manifold exceeds 125 psi (8.6 bar) a relief valve
opens allowing water to exit through the 1/2-inch drain connection on the bulkhead. It is still
possible to operate the machine; however, excess water will continue to be released through the
drain.
Discharge pressure is displayed on the pressure gauge mounted on the front of the machine. The
gauge should read approximately 120 psi (8 bar) while the machine is idling. When it strokes, the
pressure drop should be no greater than 30 psi (2 bar). The water pressure range should remain
between 90-120 psi (6-8 bar) during operation. Discharge pressure is monitored by a 60 psi
pressure switch.
NOTE
While the intensifier assembly reverses direction, the boosted pressure will
fluctuate slightly above and below the normal setting.
A temperature switch, mounted on the outlet manifold, monitors the discharge temperature. To
reduce overheating during a deadhead condition, water is re-circulated through the orifice and
check valve, and routed back through the strainer to the booster pump inlet.
A relief valve built into the filter assembly prevents excessive discharge pressure and typically
operates when the machine is in a deadhead condition. The booster pump is factory set to deliver
120 psi (8 bar) with an inlet pressure of 58 psi (4 bar). The pump may require adjustment to
satisfy system requirements.
From the outlet manifold, cutting water is routed to the sealing head inlet check valves on each
end of the intensifier.
4.4
Service and Maintenance Procedures
To ensure water quality and supply to the high pressure system, the filter element, strainer and
booster pump will require routine servicing and maintenance. The procedures for servicing these
components are detailed below.
NOTE
Refer to Section 11, Parts List for a complete listing of replacement parts and part
numbers.
Summary of Contents for STREAMLINE S50
Page 1: ...MANUAL 20479050 R04 STREAMLINE S50 WATERJET INTENSIFIER OPERATION AND MAINTENANCE MANUAL ...
Page 20: ......
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Page 125: ...Section 11 Parts List 20479307 2 2012 Rev 04 11 4 Figure 11 1 Streamline S50 Intensifier Unit ...
Page 127: ...Section 11 Parts List 20479307 2 2012 Rev 04 11 6 Figure 11 2 Intensifier Assembly ...
Page 131: ...Section 11 Parts List 20479307 2 2012 Rev 04 11 10 Figure 11 5 Hydraulic Piston Assembly ...
Page 133: ...Section 11 Parts List 20479307 2 2012 Rev 04 11 12 Figure 11 6 High Pressure Piping ...
Page 135: ...Section 11 Parts List 20479307 2 2012 Rev 04 11 14 Figure 11 7 Hydraulic Power Package ...
Page 137: ...Section 11 Parts List 20479307 2 2012 Rev 04 11 16 Figure 11 8 Motor Pump Assembly ...
Page 139: ...Section 11 Parts List 20479307 2 2012 Rev 04 11 18 Figure 11 9 Hydraulic Manifold Assembly ...
Page 141: ...Section 11 Parts List 20479307 2 2012 Rev 04 11 20 Figure 11 10 Hydraulic Hose Connections ...
Page 143: ...Section 11 Parts List 20479307 2 2012 Rev 04 11 22 Figure 11 11 Reservoir Assembly ...
Page 145: ...Section 11 Parts List 20479307 2 2012 Rev 04 11 24 Figure 11 12 Bulkhead Pipe Assembly ...
Page 147: ...Section 11 Parts List 20479307 2 2012 Rev 04 11 26 Figure 11 13 Electrical Assembly ...
Page 149: ...Section 11 Parts List 20479307 2 2012 Rev 04 11 28 Figure 11 14 Junction Box ...
Page 157: ...Section 11 Parts List 20479307 2 2012 Rev 04 11 36 Figure 11 18 Heat Exchanger Kit Oil to Air ...
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