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Parker DWV Series Differential Area Crossover Relief
Parker’s DWV Crossover Relief Valve is a fast-acting differential area design that provides pressure overload protection for an actuator where the relieved flow is 30 GPM or less. They are installed between the control valve and actuator.
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Parker’s DWV is designed to eliminate or minimize shock, surge, or overload conditions on hydraulic equipment. The need for anti-cavitation checks is eliminated. Relieved oil is directed to the opposite side of the relief (crossover) preventing cylinder or motor cavitation. It is recommended that the DWV be installed as close to the actuator as practical for optimal performance.
The pressure setting for the DWV is either screw or shim adjusted and is typically ordered preset to one of 4 default settings. Each of the 4 setting options have a usable adjustment range. Custom settings are available via contacting factory.
Markets:
• Aerial
• Agricultural Machinery
• Construction Equipment
• Defense
• Forestry Equipment
• Marine
• Material Handling Equipment
• Mining
• Misc Transportation
• Oil & Gas
• Other Mobile
• Other Natural Resources
• Rail
• Refuse
• Turf Equipment
• Vocational and Municipal Equipment
Benefits:
• Compact low profile design
• Cartridge style relief valves
• High tensile, compacted graphite body
• Fast response to cushion shocks and protect actuators
• Rated at 3000 PSI with SAE ports and the maximum recommend actuator flow is 30 GPM
• Standard porting options are 1/2” NPT and 3/4” NPT as well as SAE-8, SAE-10, and SAE-12
Applications:
• Suitable for various mobile applications
Technical Specifications
| For Fluid Type | Hydraulic Oil |
| Maximum Operating Temperature | +200 °F |
| Maximum Flow Rate | 25 Gal/min |
| Minimum Operating Temperature | -40 °F |
| Actuation Type | Hydraulic Pressure |
| Pressure Control Range | N/A, 500-1250, 1250-2000, 2000-2500, 2500-3000 psi |
| Seal Material | Nitrile |
| Maximum Operating Pressure | 3000, 2000 psi |
| Body Material | Cast Iron (GSJ) |
| Mounting Type | In-Line |
| Weight | 5 lb |
Parker DWV Series Differential Area Crossover Relief Service Manual
Parker DWV Series Differential Area Crossover Relief Service Manual
