Parker Relief Valve SRH5

Ensure the system is drained and/or exhausted of all pressures before valve disassembly or removal

If the valve is locked into position, break apart the Locknut and Cap

Turn the Locknut clockwise with a 7/8 inch wrench while holding the Cap with another 7/8 inch wrench

If the valve is a manual version, loosen the Set Screw in the Handle

Loosen the Set Screw in the Handle using a 5/64 hex Allen wrench

Unthread the Handle from the Manual Upper Stem by holding the stem and rotating the Handle counter-clockwise

Unthread the Cap from the Bonnet by rotating the Cap counter-clockwise

Remove the Spring and PTFE Washers and set them aside for reuse during reassembly

Ensure all parts are free of dirt or contaminants before reassembly

Place the PTFE coated O-ring onto the Lower Stem using the appropriate mandrel

Place the O-ring and Back-up ring onto the Body Bonnet using the appropriate mandrel, ensuring proper orientation of the seals

Insert the Lower Stem into the Body Bonnet without damaging the O-ring or Back-up Ring

Torque the Upper Stem/Manual Upper Stem onto the Lower Stem to 12 in-lbs using a 7/16 inch hex socket torque wrench