United Valve - Valve Repair, Testing & Modification - In Shop or Field Service

The manufacturer’s Standardization Society (MSS) has recently published Standard Practice SP-141, “Multi-Turn and Check Valve Modifications”, which details standard procedures for the most common new valve modifications. As chairman of  MSS Committee 310, which created the document, I am pleased with it finally being published. Quite often our valve modification customers ask for specific modification procedures. [...]