BUILDING TRADES

83-RP High Pressure Relief Pilot

The 83-RP is a spring and diaphragm operated, normally closed pilot specifically designed for high pressure applications. The inner valve is held closed by the spring. When the control sensed pressure below the diaphragm exceeds the force of the spring, the pilot valve opens.

Model 83-RP pilot is used as the standard pressure relief pilot where the operating pressures are excessive, such as a 300 psi / 20.7 bar level.

83-RP High Pressure Relief Pilot

• The pilot shall be Singer Model 83-RP, with the spring range specified.
• The normally closed pilot shall be of brass and bronze construction with a spring to adjust the opening pressure.
• The pilot and inner valve shall be of stainless steel 316 construction and the inner valve shall have EPDM resilient compound for seating. The EPDM compound must be bonded permanently to the inner valve and be ground flat and square to assure maximum performance.
• The pilot shall be self-cleaning by locating the inlet directly into the seat area through the bottom of the pilot and the outlet ninety degrees to the inlet.
• A separate port will sense pressure either upstream or downstream (subject to application) to open the pilot and therefore the main valve when system pressure exceeds the pilot set-point.
• Maximum working temperature: 180° F / 82° C
• Maximum working pressure: 600 psi / 41.4 bar

Download Specification Document

83-RP High Pressure Relief Pilot

For more information on the 83-RP:

Download the 83-RP Product Guide.

Download the 83-RP Operations Guide.

83-RP High Pressure Relief Pilot

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