RPEI – Proportional Pressure Relief Valve, Inverted Function

RPEI is an electrically controlled pressure relief valve that combines precise pressure regulation with a built-in safety feature – it secures flow to critical functions even during power outages.

Electrically controlled pressure relief valve that ensures flow during power failure

The Sun Hydraulics RPEI valve is an electrically controlled pressure relief valve that returns to the highest set value when unpowered. This means that if power is lost, flow is maintained for, for example, a fan or other critical function that must not experience downtime. The default setting it returns to when unpowered is adjusted with an adjustment screw, and the pressure level is then easily controlled using the Sun Hydraulics control unit XMD.

• RPEI is well suited to be controlled with XMD
• Available with setting range “A” up to 210 bar and “W” up to 350 bar
• 95 L/min
• Quality tested for 5 million cycles
• Zinc-nickel plating for 1000 hours of salt spray protection

Feel free to contact us to learn more about XMD, CANpoint, and various applications with closed-loop functionality.

Hydraulic reversible fan control with RPEI

The schematic below shows a reversible fan control circuit, which also includes the function to blow out any potentially clogged cooling element.