NA48SH|NA48TH|NFA42SB|NFA48SB安全阀NA48Y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……94系列1、系列2。NA48Y高温高压安全阀(电站用)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■外形尺寸和连接尺寸型号公称通径doDKgg1bff1Z-?dDN'D1K1g3g2b1f'f1'z1-?d1LL1≈HNA48Y-16CNA48Y-16INA48Y-16V4025150110851834-18501651251002034-1812011554050321651251002034-18651851451202034-1813512061865401851451202034-18802001601352038-1816014071080502001601352038-181002201801552238-18160150730100652201801552038-181502852402102438-232251758921501002852402102438-2320034029526526312-23240235113520012534029526526312-2325040535532030312-262902101135NA48Y-40NA48Y-40INA48Y-40V251611585586516244-1432140100781824-1811095429上海维旺迪阀门有限公司----【联系方式】联系人：黄经理销售***：021-60513032图文传真：021-51686501上海维旺迪阀门：邮箱：viwandi@手机：13636430039黄经理上海维旺迪阀门有限公司：http:///products/06/上海维旺迪阀门：http:///product/anquan/)