主要性能規范 Chief property and specification
·試驗壓力 Test pressure
| 公稱壓力 PN/MPa Nominal pressure | 試驗壓力/MPa Seal test | ||
| 殼體強度試驗 Shellslrenght test | 上密封試驗 Back Seal test | 密封試驗 Seat test | |
| 2.5 | 3.8 | 2.8 | 2.8 |
| 4.O | 6.0 | 4.4 | 4.4 |
| 6.4 | 9.6 | 70 | 7.O |
| 1O.O | 15O | 11.O | 11.O |
·使用范圍 Applicable
| 產品類型 Product calssification | 適用介質 Applicable medium | 適用溫度/℃ Applicable temperature |
| NKZ61H NKZ64H H-C型 NKZ964H H-C型 NKZ961H | 水、蒸汽、空氣 Water，Steam，Air | ≤425 |
| NKZ61H NKZ64H Y-I型 NKZ964H Y-I型 NKZ961H | 水、蒸汽、空氣 Water，Steam，Air | ≤550 |
·主要零部件材料 Materials for main parts
| 零件名稱 Part name | 閥體、閥蓋 Body Bonnet | 閥桿 Valve stem | 閘板 Wedge gate | 密封面 Sealing face | 閥桿螺母 Valve Yoke nut | 填料 Parking | 緊固件 Fastener |
| NKZ61H NKZ64H H-C型 NKZ964H H-C型 NKZ961H | WCB | 2Crl3 | 25 | H：合金鋼 H：alloysteel | 鋁青銅 Albronze | 膨脹復合石墨 Expanding compound graphite | 優質碳鋼 High-grade carbon steel |
| NKZ61H NKZ64H Y-I型 NKZ964H Y-I型 NKZ961H | 鉻鉬鋼 Cr.Mo steel | 20CrlMo1VA | 鉻鉬鋼 Cr.Mo steel | Y：硬質合金 Y：carbide alloy | 鉻鉬鋼 Cr.Mo steel |
