YFA48Y型高温高压安全阀适用于工作温度“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系列1、系列2。【结构图】【主要零部件材料】NO.YFA48Y高压高温型零件名称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【外形尺寸和连接尺寸】型号公称通径doDKgg1bff1Z-?dDN'D1K1g3g2b1f'f1'z1-?d1LL1≈HYFA48Y-16CYFA48Y-16IYFA48Y-16V4025150110851834-18501651251002034-1812011554050321651251002034-18651851451202034-1813512061865401851451202034-18802001601352038-1816014071080502001601352038-181002201801552238-18160150730100652201801552038-181502852402102438-232251758921501002852402102438-2320034029526526312-23240235113520012534029526526312-2325040535532030312-262902101135YFA48Y-40YFA48Y-40IYFA48Y-40V251611585586516244-1432140100781824-18110954293220140100667818244-1840150110851834-181151004214025150110768518344-18501651251002034-1812011554050321651258810020344-18651851451202034-18135120618654018514511012022348-18802001601352038-18160140710805020016012113522348-181002201801552238-18160150730100652351901501602434.58-231502852402102438-232251758921501003002502042183034.58-2620034029526526312-2324023511352001253753202602823834.512-3025040535532030312-262903101135YFA48Y-64YFA48SB-64YFA48Y-64IYFA48SB-64IYFA48Y-64VYFA48SB-64V2516140100587822244-1832140100667818244-181101004293220155110668224244-2340150110768518344-181301104214025170125769524344-23501651258810020344-1813512054050321801358810526344-236518514511012022348-1816013061850321801358810526344-238020016012113522348-18160145710654020516011013028348-238020016012113522348-18175160710805021517012114030348-231002351901501602434.58-23175160730)