J42B|J42B角式氨用截止阀|J42B角式氨用截止阀厂家产品说明：一、主要零件材料：零件名称阀体、阀盖密封圈填料填料压盖阀杆垫片J42B-25C铸钢巴氏合金聚四氟乙烯碳钢聚四氟乙烯J42B-25P灰铸铁不锈钢J42F-25C不锈钢聚四氟乙烯碳钢二、性能规范：公称压力PN（MPA）试验压力PS（MPa）适用介质适用温度（℃）2.53.8氨气、氨液等NH3巴氏合金-40℃+150℃四氟-40℃+200℃4.06.4三、主要尺寸及重量：公称通径DN（mm）尺寸（mm）重量（kg）LDD1D2D4bff1Z-φd关开D310659060403516244-φ1416518511015659565454016244-φ14165185110207510575555118244-φ14170200120258011585655818244-φ141972101203290135100786620244-φ1819921314040100145110857620344-φ18248264160501151601251008822344-φ182652951806514518014512011024348-φ183103492208015519516013512126348-φ183403572401001752301901601503034.58-φ233804132801252002702201881763234.58-φ254304513201502403002502182043234.58-φ25505492360200300360310278260