A38Y,A43H,A37H双联弹簧式安全阀阀门适用于工作温度≤350℃的蒸汽、水等介质的设备和管路上。作为超压保护装置。连接法兰标准按JB/T......94的系列1主要零部件材料说明：A38Y、A43H、A37H型安全阀除三通（材料为WCB）外，欺余零件的材料均和A47H、A48Y型弹簧式安全阀相同。A38Y、A43H、A37H型双联安全阀是在Y型接头上装设两个同样规格的A48Y或A47H型安全阀而构成，其公称通径系列指Y型接头进口通径，其组合情况如下表：A38Y型相应的A48Y型5032×28050×210065×2150100×2A43Y型相应的A47Y型5032×28050×210080×2125100×2150125×2A37Y型相应的A47Y型5032×28065×210080×2125100×2150125×2外形尺寸和连接尺寸：型号公称通径doDKgg1bff1Z-ødDN'D1K1g2b1f'Z1-ød1LL1L0hHA37H-16CA43H-16C50251651251002034-1832140100781824-1811511016523554780402001601352038-18501651251001634-1813512019028579580502001601352038-18651851451201834-18140130205310835100652201801552238-18802001601352038-18160135255355890125802502101852238-181002201801552238-1817016026041011701501002852402102438-231252502101852238-181901902754301240)