CONTROLS SOUTHEAST INC. (CSI) OR STAY FLOW SAFETY RELIEF VALVE

CONTROLS SOUTHEAST INC. (CSI) OR STAY FLOW SAFETY RELIEF VALVE STEAM JACKET. THIS IS CUSTOM CONTOURED FOR A 4" X 3" FLANGED INDUSTRIAL PRESSURE SAFETY VALVE (PSV) MOST LIKELY FEATURING AN "L" OR "M" ORIFICE SIZE. FITS: CROSBY (EMERSON) STYLE JOS/JBS SERIES (SPECIFICALLY THE 4" X 3" FRAME SIZES). FARRIS ENGINEERING (CURTISS-WRIGHT) 2600 SERIES. LESER TYPE 526 SERIES. 150 PSI @ 400 DEG F PRESSURE RATED 150 PSIG AT 400 DEG F DOWN TO 1 3/8" 4) ¾" THREADED NIPPLES 3M ¾" AC09 S KOREA B16. THIS SETUP IS STANDARD IN CHEMICAL PLANTS OIL REFINERIES AND ASPHALT PROCESSING FACILITIES. WHEN A PROCESS SYSTEM HANDLES THICK HIGH-FREEZING-POINT MATERIALS LIKE SULFUR BITUMEN OR HEAVY RESINS THOSE MATERIALS CAN QUICKLY SOLIDIFY INSIDE AN UNHEATED SAFETY VALVE. IF THE LINE OVER-PRESSURIZES A COLD CLOGGED SAFETY VALVE WILL FAIL TO OPEN. THIS BOLT-ON STEAM JACKET KEEPS THE ENTIRE PRESSURE RELIEF VALVE UNIFORMLY HOT.