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Section 8
High Pressure Water System
20479291
2-2012/Rev 04
8-29
8.14
High Pressure Dump Valve
The high pressure dump valve assembly includes a normally open high pressure water valve and
a solenoid operated air valve. The following procedure is recommended for servicing the high
pressure dump valve. Failure to follow these procedures will cause damage to the stem, valve
seat, or both.
The high pressure dump valve is a safety device designed to instantly release high
pressure from the system.
Proper maintenance is
imperative
to prevent potential
personal injury.
Figure 8-23, Pneumatic Valve Seal Tools, illustrates the special tools recommended for this
procedure.
Figure 8-23: Pneumatic Valve Seal Tools
Pneumatic Control Valve
For reliable operation the valve seat, seal assembly, brass backup ring and stem shall
always be replaced at the same time
. The SST backup ring can be reused.
Before proceeding, disconnect and lockout the main power supply and the electrical enclosure;
and ensure that all high pressure water and hydraulic pressure has been bled from the system.
Severe injury can result if the machine is not properly locked out. Observe
electrical Lock Out/Tag Out procedures before proceeding.
Ensure all pressure is relieved or blocked from the hydraulic and high pressure
circuits before proceeding.
Summary of Contents for STREAMLINE S50
Page 1: ...MANUAL 20479050 R04 STREAMLINE S50 WATERJET INTENSIFIER OPERATION AND MAINTENANCE MANUAL ...
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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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