Pilot Operated Ventable Relief Valves | Product Series

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Pilot Operated Ventable Relief Valves

Pilot Operated Ventable Relief Valves

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REGIONAL - Parker’s pilot operated ventable relief valves offer the ability to control the pressure setting via internal adjustment or remote circuit; ideal in applications that require multiple settings up to 420 bar (6000 psi) and 400 lpm (106 gpm).

Technical Specifications

  • Flow Rate: 18, 50, 106 gal/min, 68, 190, 400 L/min
  • Maximum Inlet Pressure Rating: 3000, 5500, 6000 psi, 210, 380, 420 bar
  • Pressure Control Range: 100 to 1000 psi, 200 to 2000 psi, 145 to 3000 psi, 300 to 3000 psi, 500 to 5000 psi, 145 to 6000 psi, 6.9-69, 13.8-138, 10-210, 20.7-210, 34.5-350, 10-420 bar
  • Adjustment Mechanism: Fixed, Knob, Screw, Tamper Resistant
  • Seal Material: D-Ring (Standard), Fluorocarbon, Nitrile
  • Maximum Flow Rate: 18, 50, 106 gal/min, 68, 190, 400 L/min
  • Maximum Operating Pressure: 3000, 5000, 6000 psi, 310, 350, 420 bar
  • Maximum Tank Pressure: 5000, 6000 psi, 350, 420 bar
  • Standard Setting Pressure: 500, 1000, 1450, 1500, 2500, 2900 psi, 34.5, 69, 100, 103.5, 172.4, 200 bar
  • Maximum Pressure Setting: 1000, 2000, 3000, 5000, 6000 psi, 69, 138, 210, 350, 420 bar
  • Pressure Control Sensitivity: N/A, 285 per turn, 435 per turn, 570 per turn, 800 per turn, 855 per turn, 1910 per turn psi, N/A, 20 per turn, 30 per turn, 39 per turn, 55 per turn, 59 per turn, 132 per turn bar
  • Reseat Pressure: N/A, 80% of pressure setting
  • Actuation Type: Pressure Sensing
  • Configuration: Ventable Pressure Relief
  • Leak Rate: 25 @ 1450 psi (100 bar), 100 @ 1450 psi (100 bar), 5 per 100 psi (6.8 bar) setting cm3/min
  • Mounting Type: Screw in cartridge valve
  • Cavity Size: C10-3, C10-3S, C16-3S
  • Function: Pilot Operated
  • Operation Type: Automatic
  • For Fluid Type: Mineral-based or synthetic hydraulic fluids
  • Maximum Kinematic Viscosity: 45-2000 SSU (6 to 420 cSt)
  • Filter Efficiency Rating: ISO 4406 18/16/13, SAE Class 4
  • Valve Material: All parts steel. All operating parts hardened steel
  • Installation Torque: 37, 48, 74 lb-ft, 50, 65, 100 Nm
  • Operating Temperature: -35 to +200, -30 to +250, -15 to +400 °F, -37 to +93, -34 to +121, -26 to +204 °C
  • Maximum Operating Temperature: +200, +250, +400 °F, +93, +121, +204 °C
  • Minimum Operating Temperature: -35, -30, -15 °F, -37, -34, -26 °C
  • Weight: 0.5 to 1.28 lbs, 0.23 to 0.58 kg
  • Body Material: N/A
Safety Warning

Full Product Description

Parker’s pilot operated ventable relief valves provide high accurate and reliable performance for hydraulic circuits that require multiple pressure relief settings or require a remotely pilot controlled relief. These valves can work with hydraulic systems that reach pressures up to 420 bar (6000 psi) and flows up to 400 lpm (106 gpm) and aren’t necessarily sensitive to leakage due to the spool design. Parker’s pilot operated ventable relief valves are designed unloading or remotely controlled applications and can be use anywhere within mobile hydraulic and industrial markets, such as presses, clamps, or lift circuits.

Markets:
• Miscellaneous Industrial
• Miscellaneous Manufacturing
• Miscellaneous Mobile

Features/Benefits:
• High flow capacity
• Integral 250 micron pilot flow filter
• All external parts zinc plated
• High accuracy - pilot operated design
• Hardened, precision ground parts for durability
• Compact size for reduced space requirements

Applications:
• Pump relief
• Press or clamp circuits
• Remote control applications
• Vented Unloading

Additional Technical Insight:
Ventable relief valves are pilot operated, spool type pressure controls.  Like other pilot operated relief valves, the ventable relief has a main pilot spring chamber, and a bias spring chamber separated by a pilot orifice.  The internal adjustment controls the main pilot spring setting.  When pressure in the system builds above the setting of the main pilot setting, the pilot seat will lift allowing the spool to travel to the open position passing flow.  What makes ventable relief valves unique is the valve offers an isolated vent chamber that is connected to the bias spring chamber.  This allows for the valve to open at a lower pressure than the setting of the main spring.

The circuit designer has the ability to apply an external control valve or valves to set the operating pressure of the bias spring that must be overcome to allow the valve to open.  This is an ideal solution in applications that may require variable pressure settings in normal operation.

One must consider the leakage component when applying any pilot operated spool type relief valve, as by design, the spool will pass a small leakage flow.

Related Documents

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Literature and Reference Materials
HVS Global Cartridge Valve Catalog MSG15-3504
MSG15-3504 Pressure Control Valves Catalog Pages - All
Pressure Control Valves Technical Tips
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Products Flow Rate Maximum Inlet Pressure Rating Pressure Control Range Adjustment Mechanism Seal Material
A04H3HZN 50 GAL/MIN, 190 L/MIN 6000 PSI, 420 BAR 145-3000 PSI, 10-210 BAR Screw Nitrile
A04H3HZV 50 GAL/MIN, 190 L/MIN 6000 PSI, 420 BAR 145-3000 PSI, 10-210 BAR Screw Fluorocarbon
A04H3HWN 50 GAL/MIN, 190 L/MIN 6000 PSI, 420 BAR 145-3000 PSI, 10-210 BAR Knob Nitrile
A04H3HWV 50 GAL/MIN, 190 L/MIN 6000 PSI, 420 BAR 145-3000 PSI, 10-210 BAR Knob Fluorocarbon
A04H3HTN 50 GAL/MIN, 190 L/MIN 6000 PSI, 420 BAR 145-3000 PSI, 10-210 BAR Tamper Resistant Nitrile
A04H3HTV 50 GAL/MIN, 190 L/MIN 6000 PSI, 420 BAR 145-3000 PSI, 10-210 BAR Tamper Resistant Fluorocarbon
A04H3PZN 50 GAL/MIN, 190 L/MIN 6000 PSI, 420 BAR 145-6000 PSI, 10-420 BAR Screw Nitrile
A04H3PZV 50 GAL/MIN, 190 L/MIN 6000 PSI, 420 BAR 145-6000 PSI, 10-420 BAR Screw Fluorocarbon
A04H3PWN 50 GAL/MIN, 190 L/MIN 6000 PSI, 420 BAR 145-6000 PSI, 10-420 BAR Knob Nitrile
A04H3PWV 50 GAL/MIN, 190 L/MIN 6000 PSI, 420 BAR 145-6000 PSI, 10-420 BAR Knob Fluorocarbon
RAH101VT10 18 GAL/MIN, 68 L/MIN 5500 PSI, 380 BAR 100-1000 PSI, 6.9-69 BAR Tamper Resistant D-Ring (Standard)
RAH101VT10N 18 GAL/MIN, 68 L/MIN 5500 PSI, 380 BAR 100-1000 PSI, 6.9-69 BAR Tamper Resistant Nitrile
RAH101VT10V 18 GAL/MIN, 68 L/MIN 5500 PSI, 380 BAR 100-1000 PSI, 6.9-69 BAR Tamper Resistant Fluorocarbon
RAH101VT20 18 GAL/MIN, 68 L/MIN 5500 PSI, 380 BAR 200-2000 PSI, 13.8-138 BAR Tamper Resistant D-Ring (Standard)
RAH101VT20N 18 GAL/MIN, 68 L/MIN 5500 PSI, 380 BAR 200-2000 PSI, 13.8-138 BAR Tamper Resistant Nitrile
RAH101VT20V 18 GAL/MIN, 68 L/MIN 5500 PSI, 380 BAR 200-2000 PSI, 13.8-138 BAR Tamper Resistant Fluorocarbon
RAH101VT30 18 GAL/MIN, 68 L/MIN 5500 PSI, 380 BAR 300-3000 PSI, 20.7-210 BAR Tamper Resistant D-Ring (Standard)
RAH101VT30N 18 GAL/MIN, 68 L/MIN 5500 PSI, 380 BAR 300-3000 PSI, 20.7-210 BAR Tamper Resistant Nitrile
RAH101VT30V 18 GAL/MIN, 68 L/MIN 5500 PSI, 380 BAR 300-3000 PSI, 20.7-210 BAR Tamper Resistant Fluorocarbon
RAH101VT50 18 GAL/MIN, 68 L/MIN 5500 PSI, 380 BAR 500-5000 PSI, 34.5-350 BAR Tamper Resistant D-Ring (Standard)
RAH101VT50N 18 GAL/MIN, 68 L/MIN 5500 PSI, 380 BAR 500-5000 PSI, 34.5-350 BAR Tamper Resistant Nitrile
RAH101VT50V 18 GAL/MIN, 68 L/MIN 5500 PSI, 380 BAR 500-5000 PSI, 34.5-350 BAR Tamper Resistant Fluorocarbon
A04H3PTN 50 GAL/MIN, 190 L/MIN 6000 PSI, 420 BAR 145-6000 PSI, 10-420 BAR Tamper Resistant Nitrile
A04H3PTV 50 GAL/MIN, 190 L/MIN 6000 PSI, 420 BAR 145-6000 PSI, 10-420 BAR Tamper Resistant Fluorocarbon
A06H3HZN 106 GAL/MIN, 400 L/MIN 6000 PSI, 420 BAR 145-3000 PSI, 10-210 BAR Screw Nitrile
A06H3HZV 106 GAL/MIN, 400 L/MIN 6000 PSI, 420 BAR 145-3000 PSI, 10-210 BAR Screw Fluorocarbon
A06H3HWN 106 GAL/MIN, 400 L/MIN 6000 PSI, 420 BAR 145-3000 PSI, 10-210 BAR Knob Nitrile
A06H3HWV 106 GAL/MIN, 400 L/MIN 6000 PSI, 420 BAR 145-3000 PSI, 10-210 BAR Knob Fluorocarbon
A06H3HTN 106 GAL/MIN, 400 L/MIN 6000 PSI, 420 BAR 145-3000 PSI, 10-210 BAR Tamper Resistant Nitrile
A06H3HTV 106 GAL/MIN, 400 L/MIN 6000 PSI, 420 BAR 145-3000 PSI, 10-210 BAR Tamper Resistant Fluorocarbon
A06H3PZN 106 GAL/MIN, 400 L/MIN 6000 PSI, 420 BAR 145-6000 PSI, 10-420 BAR Screw Nitrile
A06H3PZV 106 GAL/MIN, 400 L/MIN 6000 PSI, 420 BAR 145-6000 PSI, 10-420 BAR Screw Fluorocarbon
A06H3PWN 106 GAL/MIN, 400 L/MIN 6000 PSI, 420 BAR 145-6000 PSI, 10-420 BAR Knob Nitrile
A06H3PWV 106 GAL/MIN, 400 L/MIN 6000 PSI, 420 BAR 145-6000 PSI, 10-420 BAR Knob Fluorocarbon
A06H3PTN 106 GAL/MIN, 400 L/MIN 6000 PSI, 420 BAR 145-6000 PSI, 10-420 BAR Tamper Resistant Nitrile
A06H3PTV 106 GAL/MIN, 400 L/MIN 6000 PSI, 420 BAR 145-6000 PSI, 10-420 BAR Tamper Resistant Fluorocarbon
RAH101VF10 18 GAL/MIN, 68 L/MIN 5500 PSI, 380 BAR 100-1000 PSI, 6.9-69 BAR Fixed D-Ring (Standard)
RAH101VF10N 18 GAL/MIN, 68 L/MIN 5500 PSI, 380 BAR 100-1000 PSI, 6.9-69 BAR Fixed Nitrile
RAH101VF10V 18 GAL/MIN, 68 L/MIN 5500 PSI, 380 BAR 100-1000 PSI, 6.9-69 BAR Fixed Fluorocarbon
RAH101VF20 18 GAL/MIN, 68 L/MIN 5500 PSI, 380 BAR 200-2000 PSI, 13.8-138 BAR Fixed D-Ring (Standard)
RAH101VF20N 18 GAL/MIN, 68 L/MIN 5500 PSI, 380 BAR 200-2000 PSI, 13.8-138 BAR Fixed Nitrile
RAH101VF20V 18 GAL/MIN, 68 L/MIN 5500 PSI, 380 BAR 200-2000 PSI, 13.8-138 BAR Fixed Fluorocarbon
RAH101VF30 18 GAL/MIN, 68 L/MIN 5500 PSI, 380 BAR 300-3000 PSI, 20.7-210 BAR Fixed D-Ring (Standard)
RAH101VF30N 18 GAL/MIN, 68 L/MIN 5500 PSI, 380 BAR 300-3000 PSI, 20.7-210 BAR Fixed Nitrile
RAH101VF30V 18 GAL/MIN, 68 L/MIN 5500 PSI, 380 BAR 300-3000 PSI, 20.7-210 BAR Fixed Fluorocarbon
RAH101VF50 18 GAL/MIN, 68 L/MIN 5500 PSI, 380 BAR 500-5000 PSI, 34.5-350 BAR Fixed D-Ring (Standard)
RAH101VF50N 18 GAL/MIN, 68 L/MIN 5500 PSI, 380 BAR 500-5000 PSI, 34.5-350 BAR Fixed Nitrile
RAH101VF50V 18 GAL/MIN, 68 L/MIN 5500 PSI, 380 BAR 500-5000 PSI, 34.5-350 BAR Fixed Fluorocarbon
RAH101VK10 18 GAL/MIN, 68 L/MIN 5500 PSI, 380 BAR 100-1000 PSI, 6.9-69 BAR Knob D-Ring (Standard)
RAH101VK10N 18 GAL/MIN, 68 L/MIN 5500 PSI, 380 BAR 100-1000 PSI, 6.9-69 BAR Knob Nitrile
RAH101VK10V 18 GAL/MIN, 68 L/MIN 5500 PSI, 380 BAR 100-1000 PSI, 6.9-69 BAR Knob Fluorocarbon
RAH101VK20 18 GAL/MIN, 68 L/MIN 5500 PSI, 380 BAR 200-2000 PSI, 13.8-138 BAR Knob D-Ring (Standard)
RAH101VK20N 18 GAL/MIN, 68 L/MIN 5500 PSI, 380 BAR 200-2000 PSI, 13.8-138 BAR Knob Nitrile
RAH101VK20V 18 GAL/MIN, 68 L/MIN 5500 PSI, 380 BAR 200-2000 PSI, 13.8-138 BAR Knob Fluorocarbon
RAH101VK30 18 GAL/MIN, 68 L/MIN 5500 PSI, 380 BAR 300-3000 PSI, 20.7-210 BAR Knob D-Ring (Standard)
RAH101VK30N 18 GAL/MIN, 68 L/MIN 5500 PSI, 380 BAR 300-3000 PSI, 20.7-210 BAR Knob Nitrile
RAH101VK30V 18 GAL/MIN, 68 L/MIN 5500 PSI, 380 BAR 300-3000 PSI, 20.7-210 BAR Knob Fluorocarbon
RAH101VK50 18 GAL/MIN, 68 L/MIN 5500 PSI, 380 BAR 500-5000 PSI, 34.5-350 BAR Knob D-Ring (Standard)
RAH101VK50N 18 GAL/MIN, 68 L/MIN 5500 PSI, 380 BAR 500-5000 PSI, 34.5-350 BAR Knob Nitrile
RAH101VK50V 18 GAL/MIN, 68 L/MIN 5500 PSI, 380 BAR 500-5000 PSI, 34.5-350 BAR Knob Fluorocarbon
RAH101VS10 18 GAL/MIN, 68 L/MIN 5500 PSI, 380 BAR 100-1000 PSI, 6.9-69 BAR Screw D-Ring (Standard)
RAH101VS10N 18 GAL/MIN, 68 L/MIN 5500 PSI, 380 BAR 100-1000 PSI, 6.9-69 BAR Screw Nitrile
RAH101VS10V 18 GAL/MIN, 68 L/MIN 5500 PSI, 380 BAR 100-1000 PSI, 6.9-69 BAR Screw Fluorocarbon
RAH101VS20 18 GAL/MIN, 68 L/MIN 5500 PSI, 380 BAR 200-2000 PSI, 13.8-138 BAR Screw D-Ring (Standard)
RAH101VS20N 18 GAL/MIN, 68 L/MIN 5500 PSI, 380 BAR 200-2000 PSI, 13.8-138 BAR Screw Nitrile
RAH101VS20V 18 GAL/MIN, 68 L/MIN 5500 PSI, 380 BAR 200-2000 PSI, 13.8-138 BAR Screw Fluorocarbon
RAH101VS30 18 GAL/MIN, 68 L/MIN 5500 PSI, 380 BAR 300-3000 PSI, 20.7-210 BAR Screw D-Ring (Standard)
RAH101VS30N 18 GAL/MIN, 68 L/MIN 5500 PSI, 380 BAR 300-3000 PSI, 20.7-210 BAR Screw Nitrile
RAH101VS30V 18 GAL/MIN, 68 L/MIN 5500 PSI, 380 BAR 300-3000 PSI, 20.7-210 BAR Screw Fluorocarbon
RAH101VS50 18 GAL/MIN, 68 L/MIN 5500 PSI, 380 BAR 500-5000 PSI, 34.5-350 BAR Screw D-Ring (Standard)
RAH101VS50N 18 GAL/MIN, 68 L/MIN 5500 PSI, 380 BAR 500-5000 PSI, 34.5-350 BAR Screw Nitrile
RAH101VS50V 18 GAL/MIN, 68 L/MIN 5500 PSI, 380 BAR 500-5000 PSI, 34.5-350 BAR Screw Fluorocarbon

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