公稱壓力 PN/MPa Nominal pressure | 試驗(yàn)壓力/MPa Seal test | ||
殼體強(qiáng)度試驗(yàn) Shell strength | 上密封試驗(yàn) Back seal test | 密封試驗(yàn) 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 |
產(chǎn)品類型 Product type | 適用介質(zhì) Applicable medium | 適用溫度/℃ Applicable temperature |
NKZ41H NKZ44H NKZ944H-C型 NKZ941H | 水、蒸汽、空氣 Water,Steam,Air | ≤425 |
NKZ41H(Y) NKZ44H(Y)-I型 NKZ944H(Y)-I型 NKZ941H(Y) | 水、蒸汽、空氣 Water,Steam,Air | ≤550 |
零件名稱 Part name | 閥體、閥蓋 Body Bonnet | 閥桿 Stem | 閘板 Wedge gate | 密封面 Sealing face | 閥桿螺母 Yokenut | 填料 Parking | 緊固件 Fastener |
NKZ44H NKZ41H-C型 NKZ944H-C型 NKZ941H | WCB | 2Crl3 | 25 | H:合金鋼 H:alloy steel | 鋁青銅 Albronze | 膨脹復(fù)合石墨 Expanding comDound graphite | 優(yōu)質(zhì)碳鋼 High-grade carbon steel |
NKZ44 NKZ41Y-I型 NKZ944-I型 NKZ941 | 鉻鉬鋼 Cr.Mo steel | 20CrlMo1VA 38CrMoAlA | 鉻鉬鋼 Cr.Mo steel | Y:硬質(zhì)合金 Y:carbide alloy | 鉻鉬鋼 Cr.Mo steel |