The series 4000 Flanged Pilot Operated Safety Relief Valve is a High performance product, designed for superior performance in todays ever expanding industries. The Type 4000 is a ASME Approved product for both Gas and Liquid. It is available in a range of materials, from stock Carbon Steel and Stainless Steel, to the more specialised materials required to suit the customers needs. The soft seat design of the Type 4000 allows for maximum seat tightness with minimum leakage. Available with a range of different accessories, the Type 4000 can be adapted to suit all different services required. Our R&D department are ever continuing to develop new accessories that aid the user and improve the function. Limits And Standards Minimum Set […]