液化气止回阀H41N、H42N液化气止回阀利用流体压差和自身重力实现升降，适用燃气管道控制接通和裁断管路介质的启闭装置，阻止介质逆流。主要零件材料：阀体、阀盖阀瓣阀杆密封面碳钢不锈钢铬不锈钢不锈钢与尼龙主要外型尺寸和连接尺寸：PNDNLHDD1D2bfZ-φd2.5MPa4.0MPa2516011511585651624-1432190120135100781834-1840200140145110851834-18502301501601251002034-18803101751951601352238-181003502002301901602438-231504802653002502183038-2520060030036031027834412-25H42N液化气立式止回阀性能规范：公称压力PN2.54.0MPa壳体试验压力PT3.756.0高压密封试验压力2.754.4适用介质液化气、***等适用温度-40∽+80℃法兰连接标准JB/T79-94其他材质、口径、压力和详细资料请咨询上海环巨阀门有限公司-打造阀门环球巨子免费***：400-683-1828联系手机：13818287658联系***：76223301网址：主要外型尺寸和连接尺寸：PNDNHDD1D2bfZ-φd2.5MPa4.0MPa2510511585651624-1432150135100781834-1840160145110851834-18501701601251002034-18651801801451202238-18802001951601352238-181002102301901602438-231503003002502183038-2520038036031027834412-25)