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Parker in-line mounted pilot operated pressure reducing valves series R4R ensure a constant pressure in the secondary part of the hydraulic system. Series R4R*P2 enables a continuous adjustment by the proportional solenoid operated pilot stage.
Compliance, Certifications & Safety |
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CERTIFICATE - DIN ISO 9001:2015 Certificate ISDE |
CERTIFICATE - Position Paper ISDE 2006/42/EC and EN ISO 13849 |
Products | Actuation Type | Port Connection | Operation Type | Body Type | Pressure Control Range | Pressure Adjustment Control Type | Switching Option | Input Voltage | Seal Material | Actuation Type | Port Connection | Operation Type | Body Type | Pressure Control Range | Pressure Adjustment Control Type | Switching Option | Input Voltage | Seal Material |
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026-20072-0 | Manually | NG10 / G1/2" | Pilot | Threaded T-body | 105 bar | Hand knob | Omit | Omit | NBR | 1__Manually __1 | 2__NG10 / G1/2 __2 | 3__Pilot __3 | 4__Threaded T-body __4 | 5__105 bar __5 | 6__Hand knob __6 | 7__Omit __7 | 8__Omit __8 | 9__NBR __9 |
R4R03-56112P2G0RB1 | Proportional | NG10 / G1/2" | Pilot | Threaded T-body | 105 bar | Hand knob | Omit | 12 VDC | NBR | 1__Proportional __1 | 2__NG10 / G1/2 __2 | 3__Pilot __3 | 4__Threaded T-body __4 | 5__105 bar __5 | 6__Hand knob __6 | 7__Omit __7 | 8__12 VDC __8 | 9__NBR __9 |
R4R03-56132B1 | Manually | NG10 / G1/2" | Pilot | Threaded T-body | 105 bar | Acorn nut with lead seal | Omit | Omit | NBR | 1__Manually __1 | 2__NG10 / G1/2 __2 | 3__Pilot __3 | 4__Threaded T-body __4 | 5__105 bar __5 | 6__Acorn nut with lead seal __6 | 7__Omit __7 | 8__Omit __8 | 9__NBR __9 |
R4R03-56142B1 | Manually | NG10 / G1/2" | Pilot | Threaded T-body | 105 bar | Cylinder lock | Omit | Omit | NBR | 1__Manually __1 | 2__NG10 / G1/2 __2 | 3__Pilot __3 | 4__Threaded T-body __4 | 5__105 bar __5 | 6__Cylinder lock __6 | 7__Omit __7 | 8__Omit __8 | 9__NBR __9 |
026-20170-0 | Manually | NG10 / G1/2" | Pilot | Threaded T-body | 210 bar | Hand knob | Omit | Omit | NBR | 1__Manually __1 | 2__NG10 / G1/2 __2 | 3__Pilot __3 | 4__Threaded T-body __4 | 5__210 bar __5 | 6__Hand knob __6 | 7__Omit __7 | 8__Omit __8 | 9__NBR __9 |
026-67426-G | Proportional | NG10 / G1/2" | Pilot | Threaded T-body | 210 bar | Hand knob | Omit | 12 VDC | NBR | 1__Proportional __1 | 2__NG10 / G1/2 __2 | 3__Pilot __3 | 4__Threaded T-body __4 | 5__210 bar __5 | 6__Hand knob __6 | 7__Omit __7 | 8__12 VDC __8 | 9__NBR __9 |
R4R03-56332B1 | Manually | NG10 / G1/2" | Pilot | Threaded T-body | 210 bar | Acorn nut with lead seal | Omit | Omit | NBR | 1__Manually __1 | 2__NG10 / G1/2 __2 | 3__Pilot __3 | 4__Threaded T-body __4 | 5__210 bar __5 | 6__Acorn nut with lead seal __6 | 7__Omit __7 | 8__Omit __8 | 9__NBR __9 |
R4R03-56342B1 | Manually | NG10 / G1/2" | Pilot | Threaded T-body | 210 bar | Cylinder lock | Omit | Omit | NBR | 1__Manually __1 | 2__NG10 / G1/2 __2 | 3__Pilot __3 | 4__Threaded T-body __4 | 5__210 bar __5 | 6__Cylinder lock __6 | 7__Omit __7 | 8__Omit __8 | 9__NBR __9 |
016-95986-0 | Manually | NG10 / G1/2" | Pilot | Threaded T-body | 350 bar | Hand knob | Omit | Omit | NBR | 1__Manually __1 | 2__NG10 / G1/2 __2 | 3__Pilot __3 | 4__Threaded T-body __4 | 5__350 bar __5 | 6__Hand knob __6 | 7__Omit __7 | 8__Omit __8 | 9__NBR __9 |
056-40325-G | Proportional | NG10 / G1/2" | Pilot | Threaded T-body | 350 bar | Hand knob | Omit | 12 VDC | NBR | 1__Proportional __1 | 2__NG10 / G1/2 __2 | 3__Pilot __3 | 4__Threaded T-body __4 | 5__350 bar __5 | 6__Hand knob __6 | 7__Omit __7 | 8__12 VDC __8 | 9__NBR __9 |
026-22648-0 | Manually | NG10 / G1/2" | Pilot | Threaded T-body | 350 bar | Acorn nut with lead seal | Omit | Omit | NBR | 1__Manually __1 | 2__NG10 / G1/2 __2 | 3__Pilot __3 | 4__Threaded T-body __4 | 5__350 bar __5 | 6__Acorn nut with lead seal __6 | 7__Omit __7 | 8__Omit __8 | 9__NBR __9 |
R4R03-56532P2G0RB1 | Proportional | NG10 / G1/2" | Pilot | Threaded T-body | 350 bar | Acorn nut with lead seal | Omit | 12 VDC | NBR | 1__Proportional __1 | 2__NG10 / G1/2 __2 | 3__Pilot __3 | 4__Threaded T-body __4 | 5__350 bar __5 | 6__Acorn nut with lead seal __6 | 7__Omit __7 | 8__12 VDC __8 | 9__NBR __9 |
R4R06-56132B1 | Manually | NG25 / G1" | Pilot | Threaded T-body | 105 bar | Acorn nut with lead seal | Omit | Omit | NBR | 1__Manually __1 | 2__NG25 / G1 __2 | 3__Pilot __3 | 4__Threaded T-body __4 | 5__105 bar __5 | 6__Acorn nut with lead seal __6 | 7__Omit __7 | 8__Omit __8 | 9__NBR __9 |
R4R06-56312B1 | Manually | NG25 / G1" | Pilot | Threaded T-body | 210 bar | Hand knob | Omit | Omit | NBR | 1__Manually __1 | 2__NG25 / G1 __2 | 3__Pilot __3 | 4__Threaded T-body __4 | 5__210 bar __5 | 6__Hand knob __6 | 7__Omit __7 | 8__Omit __8 | 9__NBR __9 |
R4R06-56512B1 | Manually | NG25 / G1" | Pilot | Threaded T-body | 350 bar | Hand knob | Omit | Omit | NBR | 1__Manually __1 | 2__NG25 / G1 __2 | 3__Pilot __3 | 4__Threaded T-body __4 | 5__350 bar __5 | 6__Hand knob __6 | 7__Omit __7 | 8__Omit __8 | 9__NBR __9 |
R4R06-56512P2G0RB1 | Proportional | NG25 / G1" | Pilot | Threaded T-body | 350 bar | Hand knob | Omit | 12 VDC | NBR | 1__Proportional __1 | 2__NG25 / G1 __2 | 3__Pilot __3 | 4__Threaded T-body __4 | 5__350 bar __5 | 6__Hand knob __6 | 7__Omit __7 | 8__12 VDC __8 | 9__NBR __9 |
026-99810-0 | Manually | NG25 / G1" | Pilot | Threaded T-body | 350 bar | Acorn nut with lead seal | Omit | Omit | NBR | 1__Manually __1 | 2__NG25 / G1 __2 | 3__Pilot __3 | 4__Threaded T-body __4 | 5__350 bar __5 | 6__Acorn nut with lead seal __6 | 7__Omit __7 | 8__Omit __8 | 9__NBR __9 |
R4R06-56532P2G0RB1 | Proportional | NG25 / G1" | Pilot | Threaded T-body | 350 bar | Acorn nut with lead seal | Omit | 12 VDC | NBR | 1__Proportional __1 | 2__NG25 / G1 __2 | 3__Pilot __3 | 4__Threaded T-body __4 | 5__350 bar __5 | 6__Acorn nut with lead seal __6 | 7__Omit __7 | 8__12 VDC __8 | 9__NBR __9 |
056-40441-H | Proportional | NG25 / G3/4" | Pilot | Threaded L-body | 105 bar | Hand knob | Vent function: solenoid not activated, pressure reducer non-active | 24 VDC | FPM | 1__Proportional __1 | 2__NG25 / G3/4 __2 | 3__Pilot __3 | 4__Threaded L-body __4 | 5__105 bar __5 | 6__Hand knob __6 | 7__Vent function: solenoid not activated, pressure reducer non-active __7 | 8__24 VDC __8 | 9__FPM __9 |
026-20305-0 | Manually | NG25 / G3/4" | Pilot | Threaded L-body | 105 bar | Hand knob | Omit | Omit | NBR | 1__Manually __1 | 2__NG25 / G3/4 __2 | 3__Pilot __3 | 4__Threaded L-body __4 | 5__105 bar __5 | 6__Hand knob __6 | 7__Omit __7 | 8__Omit __8 | 9__NBR __9 |
026-27625-0 | Manually | NG25 / G3/4" | Pilot | Threaded L-body | 105 bar | Acorn nut with lead seal | Omit | Omit | NBR | 1__Manually __1 | 2__NG25 / G3/4 __2 | 3__Pilot __3 | 4__Threaded L-body __4 | 5__105 bar __5 | 6__Acorn nut with lead seal __6 | 7__Omit __7 | 8__Omit __8 | 9__NBR __9 |
026-99262-G | Proportional | NG25 / G3/4" | Pilot | Threaded L-body | 105 bar | Acorn nut with lead seal | Omit | 12 VDC | NBR | 1__Proportional __1 | 2__NG25 / G3/4 __2 | 3__Pilot __3 | 4__Threaded L-body __4 | 5__105 bar __5 | 6__Acorn nut with lead seal __6 | 7__Omit __7 | 8__12 VDC __8 | 9__NBR __9 |
026-20217-0 | Manually | NG25 / G3/4" | Pilot | Threaded L-body | 210 bar | Hand knob | Omit | Omit | NBR | 1__Manually __1 | 2__NG25 / G3/4 __2 | 3__Pilot __3 | 4__Threaded L-body __4 | 5__210 bar __5 | 6__Hand knob __6 | 7__Omit __7 | 8__Omit __8 | 9__NBR __9 |
R4R06-5D312B5 | Manually | NG25 / G3/4" | Pilot | Threaded L-body | 210 bar | Hand knob | Omit | Omit | FPM | 1__Manually __1 | 2__NG25 / G3/4 __2 | 3__Pilot __3 | 4__Threaded L-body __4 | 5__210 bar __5 | 6__Hand knob __6 | 7__Omit __7 | 8__Omit __8 | 9__FPM __9 |
026-70231-G | Proportional | NG25 / G3/4" | Pilot | Threaded L-body | 210 bar | Hand knob | Omit | 12 VDC | NBR | 1__Proportional __1 | 2__NG25 / G3/4 __2 | 3__Pilot __3 | 4__Threaded L-body __4 | 5__210 bar __5 | 6__Hand knob __6 | 7__Omit __7 | 8__12 VDC __8 | 9__NBR __9 |
026-43812-0 | Manually | NG25 / G3/4" | Pilot | Threaded L-body | 210 bar | Acorn nut with lead seal | Omit | Omit | NBR | 1__Manually __1 | 2__NG25 / G3/4 __2 | 3__Pilot __3 | 4__Threaded L-body __4 | 5__210 bar __5 | 6__Acorn nut with lead seal __6 | 7__Omit __7 | 8__Omit __8 | 9__NBR __9 |
016-95992-0 | Manually | NG25 / G3/4" | Pilot | Threaded L-body | 350 bar | Hand knob | Omit | Omit | NBR | 1__Manually __1 | 2__NG25 / G3/4 __2 | 3__Pilot __3 | 4__Threaded L-body __4 | 5__350 bar __5 | 6__Hand knob __6 | 7__Omit __7 | 8__Omit __8 | 9__NBR __9 |
016-95992-5 | Manually | NG25 / G3/4" | Pilot | Threaded L-body | 350 bar | Hand knob | Omit | Omit | FPM | 1__Manually __1 | 2__NG25 / G3/4 __2 | 3__Pilot __3 | 4__Threaded L-body __4 | 5__350 bar __5 | 6__Hand knob __6 | 7__Omit __7 | 8__Omit __8 | 9__FPM __9 |
R4R06-5D512P2G0RB1 | Proportional | NG25 / G3/4" | Pilot | Threaded L-body | 350 bar | Hand knob | Omit | 12 VDC | NBR | 1__Proportional __1 | 2__NG25 / G3/4 __2 | 3__Pilot __3 | 4__Threaded L-body __4 | 5__350 bar __5 | 6__Hand knob __6 | 7__Omit __7 | 8__12 VDC __8 | 9__NBR __9 |
056-40369-G | Proportional | NG25 / G3/4" | Pilot | Threaded L-body | 350 bar | Hand knob | Omit | 12 VDC | FPM | 1__Proportional __1 | 2__NG25 / G3/4 __2 | 3__Pilot __3 | 4__Threaded L-body __4 | 5__350 bar __5 | 6__Hand knob __6 | 7__Omit __7 | 8__12 VDC __8 | 9__FPM __9 |
026-20852-0 | Manually | NG25 / G3/4" | Pilot | Threaded L-body | 350 bar | Acorn nut with lead seal | Omit | Omit | NBR | 1__Manually __1 | 2__NG25 / G3/4 __2 | 3__Pilot __3 | 4__Threaded L-body __4 | 5__350 bar __5 | 6__Acorn nut with lead seal __6 | 7__Omit __7 | 8__Omit __8 | 9__NBR __9 |
056-40641-G | Proportional | NG25 / G3/4" | Pilot | Threaded L-body | 350 bar | Acorn nut with lead seal | Omit | 12 VDC | NBR | 1__Proportional __1 | 2__NG25 / G3/4 __2 | 3__Pilot __3 | 4__Threaded L-body __4 | 5__350 bar __5 | 6__Acorn nut with lead seal __6 | 7__Omit __7 | 8__12 VDC __8 | 9__NBR __9 |
026-46043-0 | Manually | NG32 / G1 1/4" | Pilot | Threaded L-body | 105 bar | Hand knob | Omit | Omit | NBR | 1__Manually __1 | 2__NG32 / G1 1/4 __2 | 3__Pilot __3 | 4__Threaded L-body __4 | 5__105 bar __5 | 6__Hand knob __6 | 7__Omit __7 | 8__Omit __8 | 9__NBR __9 |
056-40252-G | Proportional | NG32 / G1 1/4" | Pilot | Threaded L-body | 105 bar | Hand knob | Omit | 12 VDC | NBR | 1__Proportional __1 | 2__NG32 / G1 1/4 __2 | 3__Pilot __3 | 4__Threaded L-body __4 | 5__105 bar __5 | 6__Hand knob __6 | 7__Omit __7 | 8__12 VDC __8 | 9__NBR __9 |
026-46031-0 | Manually | NG32 / G1 1/4" | Pilot | Threaded L-body | 210 bar | Hand knob | Omit | Omit | NBR | 1__Manually __1 | 2__NG32 / G1 1/4 __2 | 3__Pilot __3 | 4__Threaded L-body __4 | 5__210 bar __5 | 6__Hand knob __6 | 7__Omit __7 | 8__Omit __8 | 9__NBR __9 |
026-46031-5 | Manually | NG32 / G1 1/4" | Pilot | Threaded L-body | 210 bar | Hand knob | Omit | Omit | FPM | 1__Manually __1 | 2__NG32 / G1 1/4 __2 | 3__Pilot __3 | 4__Threaded L-body __4 | 5__210 bar __5 | 6__Hand knob __6 | 7__Omit __7 | 8__Omit __8 | 9__FPM __9 |
026-43906-0 | Manually | NG32 / G1 1/4" | Pilot | Threaded L-body | 210 bar | Acorn nut with lead seal | Omit | Omit | NBR | 1__Manually __1 | 2__NG32 / G1 1/4 __2 | 3__Pilot __3 | 4__Threaded L-body __4 | 5__210 bar __5 | 6__Acorn nut with lead seal __6 | 7__Omit __7 | 8__Omit __8 | 9__NBR __9 |
026-47236-0 | Manually | NG32 / G1 1/4" | Pilot | Threaded L-body | 350 bar | Hand knob | Omit | Omit | NBR | 1__Manually __1 | 2__NG32 / G1 1/4 __2 | 3__Pilot __3 | 4__Threaded L-body __4 | 5__350 bar __5 | 6__Hand knob __6 | 7__Omit __7 | 8__Omit __8 | 9__NBR __9 |
026-56620-0 | Manually | NG32 / G1 1/4" | Pilot | Threaded L-body | 350 bar | Acorn nut with lead seal | Omit | Omit | NBR | 1__Manually __1 | 2__NG32 / G1 1/4 __2 | 3__Pilot __3 | 4__Threaded L-body __4 | 5__350 bar __5 | 6__Acorn nut with lead seal __6 | 7__Omit __7 | 8__Omit __8 | 9__NBR __9 |
056-40640-G | Proportional | NG32 / G1 1/4" | Pilot | Threaded L-body | 350 bar | Acorn nut with lead seal | Omit | 12 VDC | NBR | 1__Proportional __1 | 2__NG32 / G1 1/4 __2 | 3__Pilot __3 | 4__Threaded L-body __4 | 5__350 bar __5 | 6__Acorn nut with lead seal __6 | 7__Omit __7 | 8__12 VDC __8 | 9__NBR __9 |
R4R03-56512B5 | Manually | NG10 / G1/2" | Pilot | Threaded T-body | 350 bar | Hand knob | Omit | Omit | FPM | 1__Manually __1 | 2__NG10 / G1/2 __2 | 3__Pilot __3 | 4__Threaded T-body __4 | 5__350 bar __5 | 6__Hand knob __6 | 7__Omit __7 | 8__Omit __8 | 9__FPM __9 |
R4R06-56112B1 | Manually | NG25 / G1" | Pilot | Threaded T-body | 105 bar | Hand knob | Omit | Omit | NBR | 1__Manually __1 | 2__NG25 / G1 __2 | 3__Pilot __3 | 4__Threaded T-body __4 | 5__105 bar __5 | 6__Hand knob __6 | 7__Omit __7 | 8__Omit __8 | 9__NBR __9 |
R4R06-56112P2G0RB1 | Proportional | NG25 / G1" | Pilot | Threaded T-body | 105 bar | Hand knob | Omit | 12 VDC | NBR | 1__Proportional __1 | 2__NG25 / G1 __2 | 3__Pilot __3 | 4__Threaded T-body __4 | 5__105 bar __5 | 6__Hand knob __6 | 7__Omit __7 | 8__12 VDC __8 | 9__NBR __9 |
R4R06-56512P2G0QB1 | Proportional | NG25 / G1" | Pilot | Threaded T-body | 350 bar | Hand knob | Omit | 24 VDC | NBR | 1__Proportional __1 | 2__NG25 / G1 __2 | 3__Pilot __3 | 4__Threaded T-body __4 | 5__350 bar __5 | 6__Hand knob __6 | 7__Omit __7 | 8__24 VDC __8 | 9__NBR __9 |
026-99753-H | Proportional | NG32 / G1 1/4" | Pilot | Threaded L-body | 350 bar | Acorn nut with lead seal | Omit | 24 VDC | NBR | 1__Proportional __1 | 2__NG32 / G1 1/4 __2 | 3__Pilot __3 | 4__Threaded L-body __4 | 5__350 bar __5 | 6__Acorn nut with lead seal __6 | 7__Omit __7 | 8__24 VDC __8 | 9__NBR __9 |
R4R06-5D312P2G0QB1 | Proportional | NG25 / G3/4" | Pilot | Threaded L-body | 210 bar | Hand knob | Omit | 24 VDC | NBR | 1__Proportional __1 | 2__NG25 / G3/4 __2 | 3__Pilot __3 | 4__Threaded L-body __4 | 5__210 bar __5 | 6__Hand knob __6 | 7__Omit __7 | 8__24 VDC __8 | 9__NBR __9 |
R4R06-5D512P2G0QB1 | Proportional | NG25 / G3/4" | Pilot | Threaded L-body | 350 bar | Hand knob | Omit | 24 VDC | NBR | 1__Proportional __1 | 2__NG25 / G3/4 __2 | 3__Pilot __3 | 4__Threaded L-body __4 | 5__350 bar __5 | 6__Hand knob __6 | 7__Omit __7 | 8__24 VDC __8 | 9__NBR __9 |
R4R03-56312B5 | Manually | NG10 / G1/2" | Pilot | Threaded T-body | 210 bar | Hand knob | Omit | Omit | FPM | 1__Manually __1 | 2__NG10 / G1/2 __2 | 3__Pilot __3 | 4__Threaded T-body __4 | 5__210 bar __5 | 6__Hand knob __6 | 7__Omit __7 | 8__Omit __8 | 9__FPM __9 |
R4R06-5D11209G0QB1 | Manually | NG25 / G3/4" | Pilot | Threaded L-body | 105 bar | Hand knob | Vent function: solenoid not activated, pressure reducer non-active | 24 VDC | NBR | 1__Manually __1 | 2__NG25 / G3/4 __2 | 3__Pilot __3 | 4__Threaded L-body __4 | 5__105 bar __5 | 6__Hand knob __6 | 7__Vent function: solenoid not activated, pressure reducer non-active __7 | 8__24 VDC __8 | 9__NBR __9 |
R4R06-5D112P2G0RB1 | Proportional | NG25 / G3/4" | Pilot | Threaded L-body | 105 bar | Hand knob | Omit | 12 VDC | NBR | 1__Proportional __1 | 2__NG25 / G3/4 __2 | 3__Pilot __3 | 4__Threaded L-body __4 | 5__105 bar __5 | 6__Hand knob __6 | 7__Omit __7 | 8__12 VDC __8 | 9__NBR __9 |
R4R06-5D31211G0QB1 | Manually | NG25 / G3/4" | Pilot | Threaded L-body | 210 bar | Hand knob | Vent function: solenoid activated, unpressurized circulation | 24 VDC | NBR | 1__Manually __1 | 2__NG25 / G3/4 __2 | 3__Pilot __3 | 4__Threaded L-body __4 | 5__210 bar __5 | 6__Hand knob __6 | 7__Vent function: solenoid activated, unpressurized circulation __7 | 8__24 VDC __8 | 9__NBR __9 |