Pilot Operated Pressure Unloading Valve, SAE Flange - Series R5U

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

Pilot operated pressure unloading valves series R5U are exceptional – both in function and design – even under high flow conditions. They are part of the Parker valve range with SAE flanges which is unique in its variety. Series R5U has a similar design to the subplate mounted R4U series.

R5U valves are used to unload a circuit at low pressure. The SAE flange allows to mount the valve directly on the outlet flanges of pumps. A typical application is the unloading of pumps in an accumulator circuit. The combination of an R5U, C5V and R5V on a double pump generates a high pressure/low pressure system without the need of a manifold block or piping between the valves. The R5U is optionally available with a vent function for unpressurized circulation.

Markets:
• Industrial

Features/Benefits:
• Maximum adjustable pressure of 350 bars and flow capacity ranging from 90 l/min to 600 l/min - high performance
• Sophisticated pilot stage design - reduces pressure overshoot and cracking flow to a minimum, thus reducing heating, power and production losses in high pressure operation
• Design combines a poppet type seat valve with the pilot control - precise adjustment and quick response to eliminate pressure variation and system shocks
• Short delivery time - no warehousing necessary
• 3-port body with SAE61 flange - enables compact design
• 4 sizes (SAE ¾", 1", 1¼", 1½")
• 3 pressure stages
• 3 adjustment modes
    - Hand knob
    - Acorn nut with lead seal
    - Cylinder lock
• With optional vent function

Applications:
• Suitable for general hydraulic applications

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SKU	Availability	Price	Frequency	Mounting Type	Minimum Operating Temperature	Division	Operation Type	Actuation Type	Maximum Operating Temperature	Product Series	For Fluid Type	Maximum Operating Pressure	Flange Size	Body Type	Maximum Flow Rate	Seal Material	Body Material	Flow Rate	Weight	Maximum Pressure Setting	Drain Option	Pressure Control Range	Signal Input	Port Connection	Pressure Adjustment Control Type	Additional Options	Switching Option	Seal Material
R5U06-5911509W31A1	Backordered	POR	50/60 Hz	Flanged according SAE	-20 °C	Industrial Systems Division Europe	Pilot	Solenoid	60 °C	Pressure Valve	Hydraulic oil according to DIN 51524, Water glycol	350 bar	SAE61	3-port, M, Y1, X = G 1/4	N/A L/min	NBR	Cast Iron	90 L/min	5.3 kg	105 bar	Drain line external via port X1 or X2, internal	105 bar	230/240	SAE 3/4	Hand knob	NA	Solenoid not activated unpress. circulation	NBR
R5U06-59514A1	Backordered	POR	n/a	Flanged according SAE	-20 °C	Industrial Systems Division Europe	Pilot	Manually	60 °C	Pressure Valve	Hydraulic Oil According to DIN 51524	350 bar	SAE61	3-port, M, Y1, X = G 1/4	N/A L/min	NBR	Cast Iron	90 L/min	3.6 kg	350 bar	Drain line external via port X1 or X2, external	350 bar	Omit	SAE 3/4	Hand knob	NA	Omit	NBR
R5U06-5951511G0QA1	Backordered	POR	n/a	Flanged according SAE	-20 °C	Industrial Systems Division Europe	Pilot	Solenoid	60 °C	Pressure Valve	Hydraulic Oil According to DIN 51524	350 bar	SAE61	3-port, M, Y1, X = G 1/4	N/A L/min	NBR	Cast Iron	90 L/min	5.3 kg	350 bar	Drain line external via port X1 or X2, internal	350 bar	24 VDC	SAE 3/4	Hand knob	NA	Solenoid activated unpress. circulation	NBR
R5U06-5953509G0QA1	Backordered	POR	n/a	Flanged according SAE	-20 °C	Industrial Systems Division Europe	Pilot	Solenoid	60 °C	Pressure Valve	Hydraulic Oil According to DIN 51524	350 bar	SAE61	3-port, M, Y1, X = G 1/4	N/A L/min	NBR	Cast Iron	90 L/min	5.3 kg	350 bar	Drain line external via port X1 or X2, internal	350 bar	24 VDC	SAE 3/4	Acorn nut with lead seal	NA	Solenoid not activated unpress. circulation	NBR
R5U08-5911509GAGA1	Backordered	POR	n/a	Flanged according SAE	-20 °C	Industrial Systems Division Europe	Pilot	Solenoid	60 °C	Pressure Valve	Hydraulic oil according to DIN 51524, Water glycol	210 bar	SAE61	3-port, M, Y1, X = G 1/4	N/A L/min	NBR	Cast Iron	300 L/min	6.3 kg	105 bar	Drain line external via port X1 or X2, internal	105 bar	205 VDC	SAE 1	Hand knob	NA	Solenoid not activated unpress. circulation	NBR
R5U08-5911509GARA1	Backordered	POR	n/a	Flanged according SAE	-20 °C	Industrial Systems Division Europe	Pilot	Solenoid	60 °C	Pressure Valve	Hydraulic Oil According to DIN 51524	350 bar	SAE61	3-port, M, Y1, X = G 1/4	N/A L/min	NBR	Cast Iron	300 L/min	6.3 kg	105 bar	Drain line external via port X1 or X2, internal	105 bar	98 VDC	SAE 1	Hand knob	NA	Solenoid not activated unpress. circulation	NBR
R5U08-5911509W30A1	Backordered	POR	50/60 Hz	Flanged according SAE	-20 °C	Industrial Systems Division Europe	Pilot	Solenoid	60 °C	Pressure Valve	Hydraulic Oil According to DIN 51524	350 bar	SAE61	3-port, M, Y1, X = G 1/4	N/A L/min	NBR	Cast Iron	300 L/min	6.3 kg	105 bar	Drain line external via port X1 or X2, internal	105 bar	110/120 VAC	SAE 1	Hand knob	NA	Solenoid not activated unpress. circulation	NBR
R5U08-5913509G0QA1008	Backordered	POR	n/a	Flanged according SAE	-20 °C	Industrial Systems Division Europe	Pilot	Solenoid	60 °C	Pressure Valve	Hydraulic Oil According to DIN 51524	350 bar	SAE61	3-port, M, Y1, X = G 1/4	N/A L/min	NBR	Cast Iron	300 L/min	6.3 kg	105 bar	Drain line external via port X1 or X2, internal	105 bar	24 VDC	SAE 1	Acorn nut with lead seal	Vent function with slow unloading	Solenoid not activated unpress. circulation	NBR
R5U08-5913509W31A1	Backordered	POR	50/60 Hz	Flanged according SAE	-20 °C	Industrial Systems Division Europe	Pilot	Solenoid	60 °C	Pressure Valve	Hydraulic Oil According to DIN 51524	350 bar	SAE61	3-port, M, Y1, X = G 1/4	N/A L/min	NBR	Cast Iron	300 L/min	6.3 kg	105 bar	Drain line external via port X1 or X2, internal	105 bar	230/240 VAC	SAE 1	Acorn nut with lead seal	NA	Solenoid not activated unpress. circulation	NBR
R5U08-5913509W31A1008	Backordered	POR	50/60 Hz	Flanged according SAE	-20 °C	Industrial Systems Division Europe	Pilot	Solenoid	60 °C	Pressure Valve	Hydraulic Oil According to DIN 51524	350 bar	SAE61	3-port, M, Y1, X = G 1/4	N/A L/min	NBR	Cast Iron	300 L/min	6.3 kg	105 bar	Drain line external via port X1 or X2, internal	105 bar	230/240 VAC	SAE 1	Acorn nut with lead seal	Vent function with slow unloading	Solenoid not activated unpress. circulation	NBR
R5U08-5933509G0QA1152	Backordered	POR	n/a	Flanged according SAE	-20 °C	Industrial Systems Division Europe	Pilot	Solenoid	60 °C	Pressure Valve	Hydraulic Oil According to DIN 51524	350 bar	SAE61	3-port, M, Y1, X = G 1/4	N/A L/min	NBR	Cast Iron	300 L/min	6.3 kg	210 bar	Drain line external via port X1 or X2, internal	210 bar	24 VDC	SAE 1	Acorn nut with lead seal	3-port body with metric threads	Solenoid not activated unpress. circulation	NBR
R5U08-5933509G0QA5	Backordered	POR	n/a	Flanged according SAE	-20 °C	Industrial Systems Division Europe	Pilot	Solenoid	60 °C	Pressure Valve	Water Glycol	350 bar	SAE61	3-port, M, Y1, X = G 1/4	N/A L/min	FPM	Cast Iron	300 L/min	6.3 kg	210 bar	Drain line external via port X1 or X2, internal	210 bar	24 VDC	SAE 1	Acorn nut with lead seal	NA	Solenoid not activated unpress. circulation	FPM
R5U08-59344A1	Backordered	POR	n/a	Flanged according SAE	-20 °C	Industrial Systems Division Europe	Pilot	Manually	60 °C	Pressure Valve	Hydraulic Oil According to DIN 51524	350 bar	SAE61	3-port, M, Y1, X = G 1/4	N/A L/min	NBR	Cast Iron	300 L/min	4.6 kg	210 bar	Drain line external via port X1 or X2, external	210 bar	Omit	SAE 1	Cylinder lock	NA	Omit	NBR
R5U08-5934509G0QA1	Backordered	POR	n/a	Flanged according SAE	-20 °C	Industrial Systems Division Europe	Pilot	Solenoid	60 °C	Pressure Valve	Hydraulic Oil According to DIN 51524	350 bar	SAE61	3-port, M, Y1, X = G 1/4	N/A L/min	NBR	Cast Iron	300 L/min	6.3 kg	210 bar	Drain line external via port X1 or X2, internal	210 bar	24 VDC	SAE 1	Cylinder lock	NA	Solenoid not activated unpress. circulation	NBR
R5U08-5953511GAGA1	Backordered	POR	n/a	Flanged according SAE	-20 °C	Industrial Systems Division Europe	Pilot	Solenoid	60 °C	Pressure Valve	Hydraulic oil according to DIN 51524, Water glycol	350 bar	SAE61	3-port, M, Y1, X = G 1/4	N/A L/min	NBR	Cast Iron	300 L/min	6.3 kg	350 bar	Drain line external via port X1 or X2, internal	350 bar	205 VDC	SAE 1	Acorn nut with lead seal	NA	Solenoid activated unpress. circulation	NBR
R5U10-49114A1	Backordered	POR	n/a	Flanged according SAE	-20 °C	Industrial Systems Division Europe	Pilot	Manually	60 °C	Pressure Valve	Hydraulic Oil According to DIN 51524	280 bar	SAE61	3-port, M, Y1, X = G 1/4	N/A L/min	NBR	Cast Iron	600 L/min	5.2 kg	105 bar	Drain line external via port X1 or X2, external	105 bar	Omit	SAE 1 1/4	Hand knob	NA	Omit	NBR
R5U10-4911509W30A1	Backordered	POR	50/60 Hz	Flanged according SAE	-20 °C	Industrial Systems Division Europe	Pilot	Solenoid	60 °C	Pressure Valve	Hydraulic Oil According to DIN 51524	280 bar	SAE61	3-port, M, Y1, X = G 1/4	N/A L/min	NBR	Cast Iron	600 L/min	6.9 kg	105 bar	Drain line external via port X1 or X2, internal	105 bar	110/120 VAC	SAE 1 1/4	Hand knob	NA	Solenoid not activated unpress. circulation	NBR
R5U10-4911509W31A1	Backordered	POR	50/60 Hz	Flanged according SAE	-20 °C	Industrial Systems Division Europe	Pilot	Solenoid	60 °C	Pressure Valve	Hydraulic Oil According to DIN 51524	280 bar	SAE61	3-port, M, Y1, X = G 1/4	N/A L/min	NBR	Cast Iron	600 L/min	6.9 kg	105 bar	Drain line external via port X1 or X2, internal	105 bar	230/240 VAC	SAE 1 1/4	Hand knob	NA	Solenoid not activated unpress. circulation	NBR
R5U10-4913509W30A1	Backordered	POR	50/60 Hz	Flanged according SAE	-20 °C	Industrial Systems Division Europe	Pilot	Solenoid	60 °C	Pressure Valve	Hydraulic oil according to DIN 51524, Water glycol	280 bar	SAE61	3-port, M, Y1, X = G 1/4	N/A L/min	NBR	Cast Iron	600 L/min	6.9 kg	105 bar	Drain line external via port X1 or X2, internal	105 bar	110/120	SAE 1 1/4	Acorn nut with lead seal	NA	Solenoid not activated unpress. circulation	NBR
R5U10-4931409G0QA1	Backordered	POR	n/a	Flanged according SAE	-20 °C	Industrial Systems Division Europe	Pilot	Solenoid	60 °C	Pressure Valve	Hydraulic Oil According to DIN 51524	280 bar	SAE61	3-port, M, Y1, X = G 1/4	N/A L/min	NBR	Cast Iron	600 L/min	6.9 kg	210 bar	Drain line external via port X1 or X2, external	210 bar	24 VDC	SAE 1 1/4	Hand knob	NA	Solenoid not activated unpress. circulation	NBR

Pilot Operated Pressure Unloading Valve, SAE Flange - Series R5U

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