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Description
Aftermarket Parker RAH161S50 Relief Valve for Excavator LoaderReplacement part number: RAH161S50 Specification: Division: Hydraulic Systems Division Flow Rate: 80 gal min, 302. 8 L min Flow Rate: 80 GAL MIN, 302. 8 L MIN Maximum Inlet Pressure Rating: 5500 PSI, 380 BAR Pressure Control Range: 500 5000 PSI, 34. 5 350 BAR Maximum Inlet Pressure Rating: 5500 psi, 380 bar Adjustment Mechanism: Screw Seal Material: Nitrile Pressure Control Range: 500 5000 psi, 34. 5 350 bar Adjustment Mechanism: Screw Seal Material:
Replacement part number:
RAH161S50Specification:
Division: Hydraulic Systems Division
Flow Rate: 80 gal/min, 302.8 L/min
Flow Rate: 80 GAL/MIN, 302.8 L/MIN
Maximum Inlet Pressure Rating: 5500 PSI, 380 BAR
Pressure Control Range: 500-5000 PSI, 34.5-350 BAR
Maximum Inlet Pressure Rating: 5500 psi, 380 bar
Adjustment Mechanism: Screw
Seal Material: Nitrile
Pressure Control Range: 500-5000 psi, 34.5-350 bar
Adjustment Mechanism: Screw
Seal Material: Nitrile
Maximum Flow Rate: 80 gal/min, 302.8 L/min
Maximum Operating Pressure: 5000 psi, 350 bar
Maximum Tank Pressure: 5000 psi, 350 bar
Standard Setting Pressure: 2500 psi, 172.4 bar
Maximum Pressure Setting: 5000 psi, 350 bar
Pressure Control Sensitivity: 1910 per turn psi, 131.7 per turn bar
Reseat Pressure: 90% of pressure setting
Actuation Type: Pressure Sensing
Configuration: Pressure Relief
Leak Rate: 5 per @ 100 psi (6.8 bar) setting cm3/min
Mounting Type: Screw in cartridge valve
Cavity Size: C16-2
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: 121-125 lb-ft, 164-170 Nm
Operating Temperature: -30 to +250 °F, -34 to +121 °C
Maximum Operating Temperature: +250 °F, +121 °C
Minimum Operating Temperature: -30 °F, -34 °C
Body Material: N/A
Application:
Fit for Excavators, Loaders and so on machines with Parker Pilot Operated Relief Valve RAH161S50.
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Exchange/Return Notes
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4.1 ★★★★★
Based on 74 reviews
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Product Reviews
★★★★★ 5
Your dog will thank you.
Color: Dogwood & Fresh Breath, Size: Large
My dogs loves to chew on these. They make a small mess but not as bad as other chews. They are food for keeping teeth clean.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 31, 2026
★★★★★ 5
Nice chew toy
Color: Dogwood Mushroom, Size: Medium, Color: Dogwood Mushroom, Size: Medium
Super durable and puppy loves it. It was a bit hard for her at first but now at 5 months it’s one of her favorite things to gnaw on! It is heavy for the size but seems to be great quality and has given many hours of chew time with minimal wear.
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Reviewed in the United States on March 12, 2026
★★★★★ 4
Long lasting
Color: Dogwood & Calming, Size: Medium
My dogs love these bones.
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Reviewed in the United States on March 25, 2026
★★★★★ 5
Puppy loves these sticks!
Color: Dogwood & Calming, Size: Medium
Dogs love these sticks! Must smell and taste like real wood because it keeps my puppy from bringing real sticks in the house from outside. She is a heavy chewer and these sticks keep her occupied. We are on our 2nd set.
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Reviewed in the United States on May 27, 2026
★★★★★ 5
Great value for the price, highly recommend
Color: Dogwood & Calming, Size: Medium
Our dog loves these and chews them down to nothing. They are a great value for the money and the use your dog gets out of them. The size is just right for our doberdor.
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Reviewed in the United States on May 20, 2026