焊接式真空闸阀主要性能规范 Chief property and specification焊接式真空闸阀试验压力 Test pressure公称压力 PN/MPa Nominal pressure试验压力/MPa Seal test壳体强度试验 Shellslrenght test上密封试验 Back Seal test密封试验 Seat test2.53.82.82.84.O6.04.44.46.49.6707.O1O.O15O11.O11.O焊接式真空闸阀使用范围 Applicable产品类型 Product calssification适用介质 Applicable medium适用温度/℃ Applicable temperatureNKZ61H NKZ64H H-C型 NKZ964H H-C型 NKZ961H水、蒸汽、空气 Water,Steam,Air≤425NKZ61H NKZ64H Y-I型 NKZ964H Y-I型 NKZ961H水、蒸汽、空气 Water,Steam,Air≤550