Yale VPR-1 Pressure Relief Valve

0 to 700 bar | Precision Adjustable | 10 l/min Max Flow

The Yale VPR-1 is an adjustable hydraulic pressure relief valve with control range 0 to 700 bar, used when system pressure (the force of the connected cylinder) should not exceed a certain value. Yale specifies this as a precision valve with easy adjustment and high precise repetition.

Adjustable pressure relief for custom hydraulic systems

Yale documentation states the VPR-1 is used when system pressure should not exceed a certain value. After the set pressure is reached, excessive oil is guided back to the reservoir pressureless. Yale notes that for pressure relief valve selection only the displacement of the high pressure stage matters, so size the VPR-1 to match your pump's high-pressure flow.

Suitable Applications

Per Yale: custom hydraulic system protection, hydraulic test rigs, and Yale's own power pack configurations alongside VHP-4/3 directional valves and VSM-21 safety check valves.

Key Features

• 0 to 700 bar Adjustable Control: full Yale 700 bar range.
• Precision Adjustment: high precise repetition per Yale.
• 10 l/min Maximum Oil Flow: matched to standard HPS hand pump high-pressure stages.
• Pressureless Return to Reservoir: excess oil routed back at zero pressure via the T port.
• G 3/8 P Port, G 1/4 T Port: standard Yale 700 bar pressure-relief configuration.

Technical Specifications

Frequently Asked Questions