安全阀是一种安全保护用阀，它的启闭件受外力作用下处于常闭状态，当设备或管道内的介质压力升高，超过规定值时自动开启，通过向系统外排放介质来防止管道或设备内介质压力超过规定数值。安全阀属于自动阀类，主要用于锅炉、压力容器和管道上，控制压力不超过规定值，对人身安全和设备运行起重要保护作用。A47H带扳手弹簧微启式安全阀适用于工作温度≤350℃的蒸汽、空气等介质的设备或管路上。作为超压保护装置。应用范围：适用于工作温度≤350℃的蒸汽、油品、空气等介质。标准规范：设计制造标准：结构长度标准：GB/T12221-2005连接法兰标准：GB/T9113压力温度等级：GB/T12224-2005试验检验标准：GB/T13927-2008零部件材料：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ZG200-40012密封面材料"H"堆焊D507,"Y"堆焊Co基硬质合金尺寸及重量：型号公称通径doDKgg1bff1Z-ødDN’D1K1g2g’b1f’f1’Z1-ød1LL1≈HA47H-16C201510575/55162/4-14201057555/162/4-1410085270252011585/65162/4-14251158565/162/4-14100852703225140100/78182/4-183214010078/182/4-181151003124032150110/85183/4-184015011085/183/4-181201103205040165125/100203/4-1850165125100/203/4-181351203906550185145/120203/4-1865185145120/203/4-181401303958065200160/135203/8-1880200160135/203/8-1816013540010080220180/155223/8-18100220180155/223/8-18170160600125100250210/185223/8-18125250210185/223/8-18190190620150125285240/210243/8-23150285240210/243/8-23205195625200150340295/265263/12-23200340295265/263/12-23240230798250200405355/320303/12-26250405355320/303/12-26350320981300250460410/375304/12-26300460410375/304/12-263503201005A47H-25201510575/55162/4-14201057555/162/4-1410085270252011585/65162/4-14251158565/162/4-14100852703225140100/78182/4-183214010078/182/4-181151003124032150110/85183/4-184015011085/183/4-181201103205040165125/100203/4-1850165125100/203/4-181351203906550185145/120223/8-1865185145120/203/4-181401303958065200160/135243/8-1880200160135/203/8-1816013540010080230190/160243/8-23100220180155/203/8-18170160600125100270220/188283/8-26125250210185/223/8-18190190620150125300250/218303/8-26150285240210/243/8-23205195625200150360310/278343/12-26200340295265/263/12-23240230798250200425370/332363/12-30250405355320/303/12-26350320981300250485430/390404/16-30300460410375/304/12-263503201005)