Direct Acting Relief Valves

*PRODUCT IMAGE IS REPRESENTATIVE PROVIDED BY THE MANUFACTURER. DO NOT MAKE BUYING DECISIONS SOLEY BASED ON THE IMAGE. PLEASE VERIFY SPECIFICATIONS MEET YOUR REQUIREMENTS.

Parker’s selection of direct acting relief valves are fast acting and designed for continuous duty applications with pressures up to 420 bar (6000 psi) and flows up to 200 lpm (53 gpm) in a variety cavity sizes. The variety of pressure adjustment styles available makes these valves an economical solution for clipping pressure spikes and can handle up to full system flow if needed. Poppet style direct acting valves have low leak conditioned seats and are ideal port reliefs in cylinder control applications. Parker’s small, low flow, direct acting valves perform well when controlling pilot circuits or limiting load sense pressure.

Markets:
• Miscellaneous Industrial
• Miscellaneous Manufacturing
• Miscellaneous Mobile

Features/Benefits:
• Hardened, precision ground parts for durability
• Compact size for reduced space requirements
• Low leakage design poppet design available
• Fast response
• All external parts zinc plated
• High pressure (6000 psi) product available in some models
• Adjustable, fixed, or tamper resistant adjustments available
• Multiple spring ranges are available
• All valves are 100 % tested

Applications:
• Port/cross-port relief
• System relief
• Pilot and/or load sense relief
• Braking

Additional Technical Insight:
Full flow direct acting relief valves can be used as a main system relief valves in low flow circuits. Direct acting valves are fast acting, therefore, these devices and can be an economical solution for clipping pressure spikes. Poppet style direct acting valves have low leak conditioned seats and are often used as a port relief in a cylinder control applications. Small, low flow, direct acting valves are ideal for controlling pilot circuits or limiting load sense pressure.

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SKU	Availability	Price	Body Material	Maximum Operating Temperature	Maximum Pressure Setting	Flow Rate	Seal Material	Maximum Operating Pressure	For Fluid Type	Minimum Operating Temperature	Operating Temperature	Filter Efficiency Rating	Maximum Kinematic Viscosity	Weight	Mounting Type	Actuation Type	Function	Configuration	Division	Leak Rate	Operation Type	Valve Material	Reseat Pressure	Adjustment Mechanism	Maximum Tank Pressure	Pressure Control Range	Standard Setting Pressure	Wire Mesh Screen Included	Maximum Inlet Pressure Rating	Cavity Size	Maximum Flow Rate	Installation Torque	Pressure Control Sensitivity	Seal Material	Adjustment Mechanism	Pressure Control Range	Maximum Inlet Pressure Rating	Flow Rate
A04B2HZV	Backordered	POR	N/A	400 °F	210 bar	100 L/min	Fluorocarbon	6000 psi	Mineral-based Hydraulic Fluids	-26 °C	-15 to 400 °F	SAE Class 4	45-2000 SSU (6 to 420 cSt)	0.28 kg	Screw-in Cartridge	Pressure Sensing	Direct Acting	Pressure Relief	Mobile Hydraulic Systems Division Europe	0.33 cm3/min @ 1450 Psi (100 bar)	Automatic	Steel (all parts)	n/a	Screw	420 bar	72 to 3000 psi	100 bar	n/a	6000 psi	C10-2	26 Gal/min	37 lb-ft	21 bar Per Turn	Fluorocarbon	Screw	72-3000 PSI, 5-210 BAR	6000 PSI, 420 BAR	28 GAL/MIN, 100 L/MIN
A04B2PTN	Backordered	POR	N/A	121 °C	420 bar	26 Gal/min	Nitrile	420 bar	Synthetic Hydraulic Fluids	-30 °F	-34 to 121 °C	SAE Class 4	45-2000 SSU (6 to 420 cSt)	0.28 kg	Screw-in Cartridge	Pressure Sensing	Direct Acting	Pressure Relief	Mobile Hydraulic Systems Division Europe	5	Automatic	Hardened Steel	n/a	Tamper Resistant	420 bar	5 to 420 bar	2900 psi	n/a	6000 psi	C10-2	100 L/min	37 lb-ft	43.4	Nitrile	Tamper Resistant	72-6000 PSI, 5-420 BAR	6000 PSI, 420 BAR	28 GAL/MIN, 100 L/MIN
A04B2PWN	Backordered	POR	N/A	250 °F	420 bar	26 Gal/min	Nitrile	420 bar	Synthetic Hydraulic Fluids	-34 °C	-30 to 250 °F	SAE Class 4	45-2000 SSU (6 to 420 cSt)	0.28 kg	Screw-in Cartridge	Pressure Sensing	Direct Acting	Pressure Relief	Mobile Hydraulic Systems Division Europe	5 drops/min @ 1450 Psi (100 bar)	Automatic	Hardened Steel (all operating parts)	n/a	Knob	6000 psi	5 to 420 bar	2900 psi	n/a	6000 psi	C10-2	100 L/min	37 lb-ft	630 psi Per Turn	Nitrile	Knob	72-6000 PSI, 5-420 BAR	6000 PSI, 420 BAR	28 GAL/MIN, 100 L/MIN
A04B2PWV	Backordered	POR	N/A	400 °F	420 bar	100 L/min	Fluorocarbon	420 bar	Synthetic Hydraulic Fluids	-26 °C	-26 to 204 °C	SAE Class 4	45-2000 SSU (6 to 420 cSt)	0.62 lb	Screw-in Cartridge	Pressure Sensing	Direct Acting	Pressure Relief	Mobile Hydraulic Systems Division Europe	0.33 cm3/min @ 1450 Psi (100 bar)	Automatic	Steel (all parts)	n/a	Knob	420 bar	72 to 6000 psi	2900 psi	n/a	6000 psi	C10-2	26 Gal/min	50 Nm	43.4 bar Per Turn	Fluorocarbon	Knob	72-6000 PSI, 5-420 BAR	6000 PSI, 420 BAR	28 GAL/MIN, 100 L/MIN
A04B2PZN	Backordered	$122.70	N/A	121 °C	420 bar	26 Gal/min	Nitrile	6000 psi	Mineral-based Hydraulic Fluids	-34 °C	-34 to 121 °C	SAE Class 4	45-2000 SSU (6 to 420 cSt)	0.62 lb	Screw-in Cartridge	Pressure Sensing	Direct Acting	Pressure Relief	Mobile Hydraulic Systems Division Europe	0.33 cm3/min @ 1450 Psi (100 bar)	Automatic	Steel (all parts)	n/a	Screw	6000 psi	72 to 6000 psi	2900 psi	n/a	420 bar	C10-2	100 L/min	37 lb-ft	43.4 bar Per Turn	Nitrile	Screw	72-6000 PSI, 5-420 BAR	6000 PSI, 420 BAR	28 GAL/MIN, 100 L/MIN
A04B2PZV	3 in stock	POR	N/A	400 °F	420 bar	26 Gal/min	Fluorocarbon	420 bar	Synthetic Hydraulic Fluids	-15 °F	-26 to 204 °C	ISO 4406 18/16/13	45-2000 SSU (6 to 420 cSt)	0.28 kg	Screw-in Cartridge	Pressure Sensing	Direct Acting	Pressure Relief	Mobile Hydraulic Systems Division Europe	5 drops/min @ 1450 Psi (100 bar)	Automatic	Hardened Steel (all operating parts)	n/a	Screw	6000 psi	5 to 420 bar	200 bar	n/a	420 bar	C10-2	26 Gal/min	37 lb-ft	630 psi Per Turn	Fluorocarbon	Screw	72-6000 PSI, 5-420 BAR	6000 PSI, 420 BAR	28 GAL/MIN, 100 L/MIN
A04C2DTN	Backordered	POR	N/A	250 °F	50 bar	53 Gal/min	Nitrile	420 bar	Mineral-based Hydraulic Fluids	-30 °F	-34 to 121 °C	SAE Class 4	45-2000 SSU (6 to 420 cSt)	0.28 kg	Screw-in Cartridge	Pressure Sensing	Direct Acting	Pressure Relief	Mobile Hydraulic Systems Division Europe	n/a	Automatic	Steel (all parts)	n/a	Tamper Resistant	420 bar	29 to 725 psi	360 psi	n/a	420 bar	C10-2	200 L/min	50 Nm	76 psi Per Turn	Nitrile	Tamper Resistant	29-725 PSI, 2-50 BAR	6000 PSI, 420 BAR	53 GAL/MIN, 200 L/MIN
A04C2DWN	Backordered	POR	N/A	250 °F	725 psi	200 L/min	Nitrile	420 bar	Mineral-based Hydraulic Fluids	-34 °C	-30 to 250 °F	ISO 4406 18/16/13	45-2000 SSU (6 to 420 cSt)	0.62 lb	Screw-in Cartridge	Pressure Sensing	Direct Acting	Pressure Relief	Mobile Hydraulic Systems Division Europe	n/a	Automatic	Hardened Steel (all operating parts)	n/a	Knob	420 bar	29 to 725 psi	360 psi	n/a	6000 psi	C10-2	53 Gal/min	50 Nm	5.2 bar Per Turn	Nitrile	Knob	29-725 PSI, 2-50 BAR	6000 PSI, 420 BAR	53 GAL/MIN, 200 L/MIN
A04C2DZN	Backordered	$131.40	N/A	250 °F	50 bar	200 L/min	Nitrile	420 bar	Synthetic Hydraulic Fluids	-30 °F	-34 to 121 °C	SAE Class 4	45-2000 SSU (6 to 420 cSt)	0.28 kg	Screw-in Cartridge	Pressure Sensing	Direct Acting	Pressure Relief	Mobile Hydraulic Systems Division Europe	25	Automatic	Hardened Steel	n/a	Screw	420 bar	2 to 50 bar	360 psi	n/a	6000 psi	C10-2	53 Gal/min	37 lb-ft	5.2	Nitrile	Screw	29-725 PSI, 2-50 BAR	6000 PSI, 420 BAR	53 GAL/MIN, 200 L/MIN
A04C2DZV	Backordered	POR	N/A	204 °C	725 psi	200 L/min	Fluorocarbon	6000 psi	Mineral-based Hydraulic Fluids	-26 °C	-26 to 204 °C	SAE Class 4	45-2000 SSU (6 to 420 cSt)	0.28 kg	Screw-in Cartridge	Pressure Sensing	Direct Acting	Pressure Relief	Mobile Hydraulic Systems Division Europe	25 cm3/min @ 725 Psi (50 bar)	Automatic	Steel (all parts)	n/a	Screw	6000 psi	29 to 725 psi	360 psi	n/a	420 bar	C10-2	200 L/min	50 Nm	5.2 bar Per Turn	Fluorocarbon	Screw	29-725 PSI, 2-50 BAR	6000 PSI, 420 BAR	53 GAL/MIN, 200 L/MIN
A04C2FWN	Backordered	POR	N/A	250 °F	1450 psi	53 Gal/min	Nitrile	6000 psi	Mineral-based Hydraulic Fluids	-30 °F	-34 to 121 °C	ISO 4406 18/16/13	45-2000 SSU (6 to 420 cSt)	0.28 kg	Screw-in Cartridge	Pressure Sensing	Direct Acting	Pressure Relief	Mobile Hydraulic Systems Division Europe	25 cm3/min @ 725 Psi (50 bar)	Automatic	Hardened Steel (all operating parts)	n/a	Knob	420 bar	29 to 1450 psi	50 bar	n/a	6000 psi	C10-2	200 L/min	50 Nm	10.1 bar Per Turn	Nitrile	Knob	29-1450 PSI, 2-100 BAR	6000 PSI, 420 BAR	53 GAL/MIN, 200 L/MIN
A04C2FZN	Backordered	$131.40	N/A	250 °F	1450 psi	200 L/min	Nitrile	420 bar	Synthetic Hydraulic Fluids	-30 °F	-34 to 121 °C	ISO 4406 18/16/13	45-2000 SSU (6 to 420 cSt)	0.28 kg	Screw-in Cartridge	Pressure Sensing	Direct Acting	Pressure Relief	Mobile Hydraulic Systems Division Europe	n/a	Automatic	Steel (all parts)	n/a	Screw	6000 psi	29 to 1450 psi	725 psi	n/a	420 bar	C10-2	200 L/min	37 lb-ft	10.1 bar Per Turn	Nitrile	Screw	29-1450 PSI, 2-100 BAR	6000 PSI, 420 BAR	53 GAL/MIN, 200 L/MIN
A04C2FZV	Backordered	POR	N/A	204 °C	1450 psi	53 Gal/min	Fluorocarbon	6000 psi	Mineral-based Hydraulic Fluids	-26 °C	-26 to 204 °C	ISO 4406 18/16/13	45-2000 SSU (6 to 420 cSt)	0.28 kg	Screw-in Cartridge	Pressure Sensing	Direct Acting	Pressure Relief	Mobile Hydraulic Systems Division Europe	25	Automatic	Hardened Steel	n/a	Screw	420 bar	2 to 100 bar	725 psi	n/a	420 bar	C10-2	53 Gal/min	37 lb-ft	10.1	Fluorocarbon	Screw	29-1450 PSI, 2-100 BAR	6000 PSI, 420 BAR	53 GAL/MIN, 200 L/MIN
RD102K03	Backordered	$74.40	N/A	+200 °F	20.7 bar	10 Gal/min	D-Ring (Standard)	250 bar	Mineral-based or synthetic hydraulic fluids	-37 °C	-35 to +200 °F	ISO 4406 18/16/13, SAE Class 4	45-2000 SSU (6 to 420 cSt)	0.5 lb	Screw in cartridge valve	Pressure Sensing	Direct Acting	Pressure Relief	Hydraulic Systems Division	5 @ 75% Crack Pressure drops/min	Automatic	All parts steel. All operating parts hardened steel	85% of pressure setting	Knob	210 bar	50-300 psi	10.3 bar	n/a	3600 psi	C10-2	10 Gal/min	50-56 Nm	39 per turn psi	D-Ring (Standard)	Knob	50-300 PSI, 3.5-20.7 BAR	3600 PSI, 250 BAR	10 GAL/MIN, 38 L/MIN
RD102K03N	Backordered	$80.40	N/A	+121 °C	300 psi	10 Gal/min	Nitrile	250 bar	Mineral-based or synthetic hydraulic fluids	-30 °F	-30 to +250 °F	ISO 4406 18/16/13, SAE Class 4	45-2000 SSU (6 to 420 cSt)	0.23 kg	Screw in cartridge valve	Pressure Sensing	Direct Acting	Pressure Relief	Hydraulic Systems Division	5 @ 75% Crack Pressure drops/min	Automatic	All parts steel. All operating parts hardened steel	85% of pressure setting	Knob	3000 psi	3.5-20.7 bar	10.3 bar	n/a	250 bar	C10-2	38 L/min	37-41 lb-ft	39 per turn psi	Nitrile	Knob	50-300 PSI, 3.5-20.7 BAR	3600 PSI, 250 BAR	10 GAL/MIN, 38 L/MIN
RD102K03V	Backordered	$80.40	N/A	+204 °C	20.7 bar	10 Gal/min	Fluorocarbon	3600 psi	Mineral-based or synthetic hydraulic fluids	-15 °F	-26 to +204 °C	ISO 4406 18/16/13, SAE Class 4	45-2000 SSU (6 to 420 cSt)	0.5 lb	Screw in cartridge valve	Pressure Sensing	Direct Acting	Pressure Relief	Hydraulic Systems Division	5 @ 75% Crack Pressure drops/min	Automatic	All parts steel. All operating parts hardened steel	85% of pressure setting	Knob	3000 psi	50-300 psi	150 psi	n/a	250 bar	C10-2	38 L/min	50-56 Nm	2.7 per turn bar	Fluorocarbon	Knob	50-300 PSI, 3.5-20.7 BAR	3600 PSI, 250 BAR	10 GAL/MIN, 38 L/MIN
RD102K09	Backordered	$74.40	N/A	+200 °F	62 bar	38 L/min	D-Ring (Standard)	250 bar	Mineral-based or synthetic hydraulic fluids	-37 °C	-37 to +93 °C	ISO 4406 18/16/13, SAE Class 4	45-2000 SSU (6 to 420 cSt)	0.5 lb	Screw in cartridge valve	Pressure Sensing	Direct Acting	Pressure Relief	Hydraulic Systems Division	5 @ 75% Crack Pressure drops/min	Automatic	All parts steel. All operating parts hardened steel	85% of pressure setting	Knob	210 bar	6.9-62 bar	450 psi	n/a	250 bar	C10-2	38 L/min	37-41 lb-ft	7.2 per turn bar	D-Ring (Standard)	Knob	100-900 PSI, 7-62 BAR	3600 PSI, 250 BAR	10 GAL/MIN, 38 L/MIN
RD102K09V	Backordered	$80.40	N/A	+400 °F	900 psi	10 Gal/min	Fluorocarbon	250 bar	Mineral-based or synthetic hydraulic fluids	-15 °F	-26 to +204 °C	ISO 4406 18/16/13, SAE Class 4	45-2000 SSU (6 to 420 cSt)	0.23 kg	Screw in cartridge valve	Pressure Sensing	Direct Acting	Pressure Relief	Hydraulic Systems Division	0.33 @ 75% Crack Pressure cm3/min	Automatic	All parts steel. All operating parts hardened steel	85% of pressure setting	Knob	210 bar	6.9-62 bar	31 bar	n/a	3600 psi	C10-2	38 L/min	37-41 lb-ft	7.2 per turn bar	Fluorocarbon	Knob	100-900 PSI, 7-62 BAR	3600 PSI, 250 BAR	10 GAL/MIN, 38 L/MIN
RD102K18	Backordered	$74.40	N/A	+93 °C	1800 psi	38 L/min	D-Ring (Standard)	250 bar	Mineral-based or synthetic hydraulic fluids	-37 °C	-35 to +200 °F	ISO 4406 18/16/13, SAE Class 4	45-2000 SSU (6 to 420 cSt)	0.23 kg	Screw in cartridge valve	Pressure Sensing	Direct Acting	Pressure Relief	Hydraulic Systems Division	5 @ 75% Crack Pressure drops/min	Automatic	All parts steel. All operating parts hardened steel	85% of pressure setting	Knob	210 bar	13.8-124 bar	62 bar	n/a	3600 psi	C10-2	38 L/min	37-41 lb-ft	234 per turn psi	D-Ring (Standard)	Knob	200-1800 PSI, 13.8-124 BAR	3600 PSI, 250 BAR	10 GAL/MIN, 38 L/MIN
RD102K18N	Backordered	$80.40	N/A	+250 °F	124 bar	10 Gal/min	Nitrile	3600 psi	Mineral-based or synthetic hydraulic fluids	-30 °F	-34 to +121 °C	ISO 4406 18/16/13, SAE Class 4	45-2000 SSU (6 to 420 cSt)	0.23 kg	Screw in cartridge valve	Pressure Sensing	Direct Acting	Pressure Relief	Hydraulic Systems Division	0.33 @ 75% Crack Pressure cm3/min	Automatic	All parts steel. All operating parts hardened steel	85% of pressure setting	Knob	210 bar	200-1800 psi	62 bar	n/a	250 bar	C10-2	10 Gal/min	37-41 lb-ft	234 per turn psi	Nitrile	Knob	200-1800 PSI, 13.8-124 BAR	3600 PSI, 250 BAR	10 GAL/MIN, 38 L/MIN

Direct Acting Relief Valves

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