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	Actuation Type	Division	Maximum Operating Temperature	Minimum Operating Temperature	Seal Material	Operation Type	Product Series	For Fluid Type	Body Material	Frequency	Flow Rate	Maximum Pressure Setting	Maximum Operating Pressure	Mounting Type	Flange Size	Weight	Maximum Flow Rate	Body Type	Seal Material	Additional Options	Pressure Adjustment Control Type	Pressure Control Range	Port Connection	Drain Option	Switching Option	Signal Input
R5U10-4931509GARA1	Backordered	POR	Solenoid	Industrial Systems Division Europe	60 °C	-20 °C	NBR	Pilot	Pressure Valve	Hydraulic Oil According to DIN 51524	Cast Iron	n/a	600 L/min	210 bar	280 bar	Flanged according SAE	SAE61	6.9 kg	N/A L/min	3-port, M, Y1, X = G 1/4	NBR	NA	Hand knob	210 bar	SAE 1 1/4	Drain line external via port X1 or X2, internal	Solenoid not activated unpress. circulation	98 VDC
R5U10-4931509W30A1	Backordered	POR	Solenoid	Industrial Systems Division Europe	60 °C	-20 °C	NBR	Pilot	Pressure Valve	Hydraulic Oil According to DIN 51524	Cast Iron	50/60 Hz	600 L/min	210 bar	280 bar	Flanged according SAE	SAE61	6.9 kg	N/A L/min	3-port, M, Y1, X = G 1/4	NBR	NA	Hand knob	210 bar	SAE 1 1/4	Drain line external via port X1 or X2, internal	Solenoid not activated unpress. circulation	110/120 VAC
R5U10-4933511G0QA1	Backordered	POR	Solenoid	Industrial Systems Division Europe	60 °C	-20 °C	NBR	Pilot	Pressure Valve	Hydraulic oil according to DIN 51524, Water glycol	Cast Iron	n/a	600 L/min	210 bar	280 bar	Flanged according SAE	SAE61	6.9 kg	N/A L/min	3-port, M, Y1, X = G 1/4	NBR	NA	Acorn nut with lead seal	210 bar	SAE 1 1/4	Drain line external via port X1 or X2, internal	Solenoid activated unpress. circulation	24 VDC
R5U10-49514A1	Backordered	POR	Manually	Industrial Systems Division Europe	60 °C	-20 °C	NBR	Pilot	Pressure Valve	Hydraulic Oil According to DIN 51524	Cast Iron	n/a	600 L/min	280 bar	280 bar	Flanged according SAE	SAE61	5.2 kg	N/A L/min	3-port, M, Y1, X = G 1/4	NBR	NA	Hand knob	280 BAR	SAE 1 1/4	Drain line external via port X1 or X2, external	Omit	Omit
R5U10-4953509G0QA1	Backordered	POR	Solenoid	Industrial Systems Division Europe	60 °C	-20 °C	NBR	Pilot	Pressure Valve	Hydraulic Oil According to DIN 51524	Cast Iron	n/a	600 L/min	280 bar	280 bar	Flanged according SAE	SAE61	6.9 kg	N/A L/min	3-port, M, Y1, X = G 1/4	NBR	NA	Acorn nut with lead seal	280 BAR	SAE 1 1/4	Drain line external via port X1 or X2, internal	Solenoid not activated unpress. circulation	24 VDC
R5U12-3911409W01A1	Backordered	POR	Solenoid	Industrial Systems Division Europe	60 °C	-20 °C	NBR	Pilot	Pressure Valve	Hydraulic Oil According to DIN 51524	Cast Iron	n/a	600 L/min	210 bar	210 bar	Flanged according SAE	SAE61	9.7 kg	N/A L/min	3-port, M, Y1, X = G 1/4	NBR	NA	Hand knob	105 bar	SAE 1 1/2	Drain line external via port X1 or X2, external	Solenoid not activated unpress. circulation
R5U12-3913509G0QA1	Backordered	POR	Solenoid	Industrial Systems Division Europe	60 °C	-20 °C	NBR	Pilot	Pressure Valve	Hydraulic Oil According to DIN 51524	Cast Iron	n/a	600 L/min	210 bar	210 bar	Flanged according SAE	SAE61	6.9 kg	N/A L/min	3-port, M, Y1, X = G 1/4	NBR	NA	Acorn nut with lead seal	105 bar	SAE 1 1/2	Drain line external via port X1 or X2, internal	Solenoid not activated unpress. circulation	24 VDC
R5U12-3913509G0QA1008	Backordered	POR	Solenoid	Industrial Systems Division Europe	60 °C	-20 °C	NBR	Pilot	Pressure Valve	Hydraulic Oil According to DIN 51524	Cast Iron	n/a	600 L/min	210 bar	210 bar	Flanged according SAE	SAE61	9.7 kg	N/A L/min	3-port, M, Y1, X = G 1/4	NBR	Vent function with slow unloading	Acorn nut with lead seal	105 bar	SAE 1 1/2	Drain line external via port X1 or X2, internal	Solenoid not activated unpress. circulation	24 VDC
R5U12-3913509G0QA1152	Backordered	POR	Solenoid	Industrial Systems Division Europe	60 °C	-20 °C	FPM	Pilot	Pressure Valve	Hydraulic Oil According to DIN 51524	Cast Iron	n/a	600 L/min	210 bar	210 bar	Flanged according SAE	SAE61	9.7 kg	N/A L/min	3-port, M, Y1, X = G 1/4	NBR	3-port body with metric threads	Acorn nut with lead seal	105 bar	SAE 1 1/2	Drain line external via port X1 or X2, internal	Solenoid not activated unpress. circulation	24 VDC
R5U12-3931509GARA1	Backordered	POR	Solenoid	Industrial Systems Division Europe	60 °C	-20 °C	NBR	Pilot	Pressure Valve	Hydraulic Oil According to DIN 51524	Cast Iron	n/a	600 L/min	210 bar	210 bar	Flanged according SAE	SAE61	9.7 kg	N/A L/min	3-port, M, Y1, X = G 1/4	NBR	NA	Hand knob	210 bar	SAE 1 1/2	Drain line external via port X1 or X2, internal	Solenoid not activated unpress. circulation	98 VDC
R5U12-3931509W31A1	Backordered	POR	Solenoid	Industrial Systems Division Europe	60 °C	-20 °C	NBR	Pilot	Pressure Valve	Hydraulic Oil According to DIN 51524	Cast Iron	n/a	600 L/min	210 bar	210 bar	Flanged according SAE	SAE61	9.7 kg	N/A L/min	3-port, M, Y1, X = G 1/4	NBR	NA	Hand knob	210 bar	SAE 1 1/2	Drain line external via port X1 or X2, internal	Solenoid not activated unpress. circulation
R5U12-3933509GAGA1	Backordered	POR	Solenoid	Industrial Systems Division Europe	60 °C	-20 °C	NBR	Pilot	Pressure Valve	Hydraulic Oil According to DIN 51524	Cast Iron	n/a	600 L/min	210 bar	210 bar	Flanged according SAE	SAE61	9.7 kg	N/A L/min	3-port, M, Y1, X = G 1/4	NBR	NA	Acorn nut with lead seal	210 bar	SAE 1 1/2	Drain line external via port X1 or X2, internal	Solenoid not activated unpress. circulation	205 VDC
R5U12-39335A1	Backordered	POR	Manually	Industrial Systems Division Europe	60 °C	-20 °C	NBR	Pilot	Pressure Valve	Hydraulic Oil According to DIN 51524	Cast Iron	n/a	600 L/min	210 bar	210 bar	Flanged according SAE	SAE61	8 kg	N/A L/min	3-port, M, Y1, X = G 1/4	NBR	NA	Acorn nut with lead seal	210 bar	SAE 1 1/2	Drain line external via port X1 or X2, internal	Omit	Omit

Pilot Operated Pressure Unloading Valve, SAE Flange - Series R5U

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