一、产品详细资料：    本阀门适用于工作温度≤350℃的蒸汽、空气等介质的设备或管路上。作为超压保护装置。连接法兰标准按JB/T-94的系列1。二、主要零部件材料：NO零件名称材料1阀体WCB2阀座ZG2Cr133调节圈ZG2Cr134阀瓣2Cr135导向套2Cr136阀盖ZG230-4507弹簧50CrVA8阀杆2Cr139扳手ZG200-40010调整螺杆4511保护罩ZG200-400密封面材料H堆焊D507,Y堆焊Co基硬质合金三、上明牌A47H型微启式蒸汽安全阀外形尺寸和连接尺寸：型号公称通径doDKgg1bff1Z-鴇DN’’D1K1g2g’’b1f’’f1’’Z1-鴇1LL1≈HA47H-16C201510575551624-142010575551624-1410085270252011585651624-142511585651624-14100852703225140100781824-1832140100781824-181151003124032150110851834-1840150110851834-1812011032050401651251002034-18501651251002034-1813512039065501851451202034-18651851451202034-1814013039580652001601352038-18802001601352038-18160135400100802201801552238-181002201801552238-181701606001251002502101852238-181252502101852238-181901906201501252852402102438-231502852402102438-2320519562520015034029526526312-2320034029526526312-2324023079825020040535532030312-2625040535532030312-2635032098130025046041037530412-2630046041037530412-263503201005A47H-25201510575551624-142010575551624-1410085270252011585651624-142511585651624-14100852703225140100781824-1832140100781824-181151003124032150110851834-1840150110851834-1812011032050401651251002034-18501651251002034-1813512039065501851451202238-18651851451202034-1814013039580652001601352438-18802001601352038-18160135400100802301901602438-231002201801552038-181701606001251002702201882838-261252502101852238-181901906201501253002502183038-261502852402102438-2320519562520015036031027834312-2620034029526526312-2324023079825020042537033236312-3025040535532030312-2635032098130025048543039040416-3030046041037530412-263503201005