| 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 |
| 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 |
| 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(yōu)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 |
