上明牌阀门适用于工作温度“C型”≤425℃；“I型”≤500℃；“V型”≤500℃；的蒸汽等介质设备或管路上，作为超压保护装置。连接法兰标准按JB/T……94系列1、系列2。一、主要零部件材料：NO.零件名称C型材料I型材料V型材料1阀体WCBZG1Cr5MoZG15Cr1Mo1V2阀座2Cr131Cr18Ni9Ti12Cr1MoVA3调节圈2Cr131Cr18Ni9Ti1Cr18Ni9Ti4阀瓣2Cr1317-4PH17-7PH5导向套2Cr131Cr18Ni9Ti1Cr18Ni9Ti6散热器ZG230-450ZG230-450ZG230-4507阀盖ZG230-450ZG230-450ZG230-4508弹簧50CrVA50CrVA50CrVA二、上明牌A48Y型全启式高压安全阀外形尺寸和连接尺寸：型号公称通径doDKgg1bff1Z-ødDN’’D1K1g3g2b1f’’f1’’z1-ød1LL1≈HYFA48Y-16CYFA48Y-16IYFA48Y-16V4025150110-85183-4-1850165125-100203-4-181201155405032165125-100203-4-1865185145-120203-4-181351206186540185145-120203-4-1880200160-135203-8-181601407108050200160-135203-8-18100220180-155223-8-1816015073010065220180-155203-8-18150285240-210243-8-23225175892150100285240-210243-8-23200340295-265263-12-232402351135200125340295-265263-12-23250405355-320303-12-262902101135YFA48Y-40YFA48Y-40IYFA48Y-40V251611585586516244-1432140100-78182-4-18110954293220140100667818244-1840150110-85183-4-181151004214025150110768518344-1850165125-100203-4-1812011554050321651258810020344-1865185145-120203-4-18135120618654018514511012022348-1880200160-135203-8-18160140710805020016012113522348-18100220180-155223-8-18160150730100652351901501602434.58-23150285240-210243-8-232251758921501003002502042183034.58-26200340295-265263-12-2324023511352001253753202602823834.512-30250405355-320303-12-262903101135YFA48Y-64YFA48SB-64YFA48Y-64IYFA48SB-64IYFA48Y-64VYFA48SB-64V2516140100587822244-1832140100667818244-181101004293220155110668224244-2340150110768518344-181301104214025170125769524344-23501651258810020344-18135120540503218013588)