Parker Hannifin PRH101S50 - Pilot Operated Pressure Reducing Relieving Valves

Parker's family of pilot operated acting reducing & relieving valves provide superior pressure control in applications where specific regulated and relief pressures are needed for precise operation on functions that require regulated pressures up to 380 bar (5500 psi) and flows up to 150 lpm (40 gpm). Parker's pilot operated acting reducing & relieving valves are designed with several pressure ranges in order to give a higher degree of control with a variety of adjustment style options available. The additional valve stability due to the pilot operation make these valves ideal for sensitive functions such as up or downforce, clamping, or braking applications on various types of machinery within the mobile and industrial markets.

Markets:
• Agriculture
• Construction Equipment
• Industrial
• Miscellaneous Manufacturing
• Miscellaneous Mobile

Features/Benefits:
• Multiple pressure ranges available for more accurate pressure control
• Compact size for reduced space requirements
• Adjustable and tamperproof versions available
• High pressure capacity
• All external parts zinc plated

Applications:
• Brakes
• Clamps
• Suspension systems
• Up/down-force systems

Additional Technical Insight:
Typical applications are in mobile & industrial equipment, where a branch of the system is intended to operate at a lower setting than high system pressure. Hydraulic functions such as brake circuits, clamping or clutch circuits, suspension systems, street sweepers, or seeding and planting rows in agricultural equipment are common applications for these products.

Specifications

Rated Flow (gpm)	15
Rated Flow (lpm)	56.3
Maximum Inlet Pressure (psi)	5500
Maximum Inlet Pressure (bar)	380
Maximum Tank Pressure (psi)	5000
Maximum Tank Pressure (bar)	350
Maximum Drain Flow (gpm)	0.25
Maximum Drain Flow (lpm)	0.94
Cavity size	C10-3
Pressure Range Adjustment (psi)	1200-5000
Pressure Range Adjustment (bar)	82.8-345
Adjustment Type	Screw Adjust
Standard Setting Pressure (psi)	2500
Standard Setting Pressure (bar)	172.4
Pressure Control Sensitivity (psi)	1910 per turn
Pressure Control Sensitivity (bar)	131.7 per turn
Cracking Pressure (psi)	N/A
Cracking Pressure (bar)	N/A
Seal Material	D-Ring (Standard)
Operating Temperature (F)	-50° to +270°
Operating Temperature (C)	-45° to +132°
Valve Materials	All parts steel. All operating parts hardened steel
Body Material	-
Rated Fluid Viscosity (cSt)	Mineral-based or synthetic with lubricating properties at viscosities of 45-2000 SSU (6 to 420 cSt)
Filtration Ratings	ISO 4406: 1999 Code 18/16/13
Weight (lb)	0.5
Weight (kg)	0.23
Installation Torque (lbs/ft)	51-55
Installation Torque (Nm)	69-75
Function	Reducing