The Fisher Type 63EGLP is the evolutionary leap forward in bulk plant pressure relief combining safety, durability, and serviceability into one superior package. Dual pilot technology allows for the removal of a pilot for service while the 63EGLP continues to protect the tank’s contents. Greater relief capacity and surface-area protection reduces the number of valves required compared to traditional quadport relief valves.

Designed for use with large LP-Gas and NH3 stationary storage container applications with 4”- 300# ANSI flanged openings. The pilot valve-controlled relief mechanism allows for precision start to discharge set points in conjunction with the high flow angled seat design for high relief flow capacity in a simplified design which eliminates the need for traditional external pressure relief valves. The dual pilot valve design allows for the change of either pilot valve without taking the storage container out of service, significantly reducing cost of future service and replacement. The relief port is designed with a 4" FNPT threaded outlet, allowing convenient discharge pipeaway if necessary.