真空法兰闸阀试验压力 test pressure
公称压力 pn/mpa nominal pressure | 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 |
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 |
nkz41h nkz44h nkz944h-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 |
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 |
nkz44h nkz41h-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 expanding comdound graphite | 优质碳钢 high-grade carbon steel |
nkz44 nkz41y-i型 nkz944-i型 nkz941 | 铬钼钢 cr.mo steel | 20crlmo1va 38crmoala | 铬钼钢 cr.mo steel | y:硬质合金 y:carbide alloy | 铬钼钢 cr.mo steel |