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NKZ41H真空法兰闸阀试验压力 Test pressure
公称压力PN/MPaNominalpressure 试验压力/MPa Seal test
壳体强度试验Shell strength 上密封试验Back seal test 密封试验Seat test
1.0 1.5 1.1 1.1
1.6 2.4 1.8 1.8
2.5 3.8 2.8 2.8
4.0 6.O 4.4 4.4
6.4 8.6 7.O 7.0
1O.O 15.O 11.O 11.O
NKZ41H真空法兰闸阀使用范围Applicable
产品类型Product type 适用介质Applicable medium 适用温度/℃Applicable temperature
NKZ41HNKZ44HNKZ944H-C型NKZ941H 水、蒸汽、空气Water,Steam,Air ≤425
NKZ41H(Y)NKZ44H(Y)-I型NKZ944H(Y)-I型NKZ941H(Y) 水、蒸汽、空气Water,Steam,Air ≤550
NKZ41H真空法兰闸阀主要零件材料Materials for main parts
零件名称Part name 阀体、阀盖Body Bonnet 阀杆Stem 闸板Wedge gate 密封面Sealing face 阀杆螺母Yokenut 填料Parking 紧固件Fastener
NKZ44HNKZ41H-C型NKZ944H-C型NKZ941H WCB 2Crl3 25 H:合金钢H:alloy steel 铝青铜Albronze 膨胀复合石墨ExpandingcomDoundgraphite 碳钢High-gradecarbon steel