结构特点与用途：
Strucure features and usages:
全关时手轮按顺时针方向旋转；
可以安装在管道的任何位置上，介质从下往上流；
不锈钢截止阀适用于各类腐蚀性介质的管道上，有良好的防腐性和足够的强度；
合金钢截止阀适用于耐高温的蒸汽、油品管道上，具有耐高温特点。
When fully closed,the handwheel rotates clockwise.
Able to be mounted on any position of the pipeline,the medium flows from down to up.
Stainless steel made stop valve is of good anti-corrosive property and enough strength and suitable for various pipelines with corrosive medium.
Alloy steel made stop valve features high-temperature resistance,suitable for high-temperature steam and oil goods pipelines.
主要尺寸及重量：
Main dimensions and weight：
试验压力
Test pressure
| 公称压力PN(MPa)Nominal pressure | 1.6 | 2.5 | 4.0 | 6.4 | ||
| 壳体强度试验Shell strength test | 2.4 | 3.8 | 6.0 | 9.6 | ||
| 上密封试验Back seal test | 1.8 | 2.8 | 4.4 | 7.0 | ||
| 密封试验Seal test | 1.8 | 2.8 | 4.4 | 7.0 |
使用范围
Scope of use
| 产品类型Product classification | 适用介质Suitable medium | 适用温度（℃）Suitable temperature |
| J41W-P J941W-P | 硝酸类Nitric acid | ≤200℃ |
| J41W-R | 醋酸类Acetic acid | ≤200℃ |
主要零件材料：
Material for main parts：
| 产品类型Product classification | 零件名称Part name | |||||||
| 阀体、阀盖Body bonnet | 阀杆Valve stem | 阀瓣Disc | 密封面Sealing face | 阀杆螺母Yoke nut | 填料Packing | 紧固件Fastener | 手轮Handwheel | |
| J41W-P J941W-P | 铬镍钛钢Cr.Ni.Ti steel | 铬镍钛钢Cr.Ni.Ti steel | 铬镍钛钢Cr.Ni.Ti steel | 铬镍钛钢Cr.Ni.Ti steel | 铝青铜Albronze | 柔性石墨Flexible graphite | 不锈钢Stainless steel | 可锻铸铁Forgeable cast-iron |
| J41W-R | 铬镍钼钛钢Cr.Ni.Mo.Ti steel | 铬镍钼钛钢Cr.Ni.Mo.Ti steel | 铬镍钼钛钢Cr.Ni.Mo.Ti steel | 铬镍钼钛钢Cr.Ni.Mo.Ti steel | 铝青铜Albronze | 柔性石墨Flexible graphite | 不锈钢Stainless steel | 可锻铸铁Forgeable cast-iron |
