公稱通徑 DN/mm Nominal diameter試驗壓力/MPa Seal test殼體強度試驗 Sheli strength上密封試驗 Back seal密封試驗 Seal test2.53 82 82 84 O6 04 44 46 49.67.07.010.015.011.0110 ■試驗壓力 Test pressure 產品類型 Product type適用介質 Applicable medium適用溫度/℃ Applicable temperatureNKZ61H NKZ64H NKZ964H NKZ961HH-C型水、蒸汽、空氣 Water,Stram.Air≤425NKZ61H NKZ64H NKZ964H NKZ961HY-I型水、蒸汽、空氣 Water,Stram.Air≤550 ■法蘭式真空隔離閘閥、電動真空隔離閘閥主要零件材料 零件名稱 Part name閥體、閥蓋 Body Bonnet閥桿 Valve stem閥板 Wedge gate密封面 Sealing face閥桿螺母 Yoke nut填料 Packing緊固件 FastenerNKZ61H NKZ64H NKZ964H NKZ961HH-C型WCB2Gr1325H:合金鋼 H:alloy steel鋁青銅 Al bronze膨脹復合石墨 Expanding compound graphite優質碳鋼 High-grade carbon steelNKZ61H NKZ64H NKZ964H NKZ961HY-I型鉻鉬鋼 Cr.Mo steel20Cr1Mo1VA鉻鉬鋼 Cr.Mo steelY:硬質合金 Y:carbide alloy鉻鉬鋼 Cr.Mo steel