详细说明
J41H截止阀｜法兰高压截止阀:
截止阀的启闭件是塞形的阀瓣，密封面呈平面或锥面，阀瓣沿流体的中心线作直线运动。阀杆的运动形式，有升降杆式（阀杆升降，手轮不升降），也有升降旋转杆式（手轮与阀杆一起旋转升降，上海科袄实业有限公司螺母设在阀体上）。截止阀只适用于全开和全关，不允许作调节和节流。
执行标准 Administer Standard
| 设计与制造 Design and Manufacture | 结构长度Face To Face | 法兰尺寸Flange Dimension | 压力-温度 Pressure Temperature Lating | 试验-检验 Inspection And Test |
| GB122235 | GB12221 | GB9113 JB79 | GB9131 | GB/T13927 JB/T9092 |
压力试验 Pressure Test
| 公称压力NominalPressure | 1.6 | 2.5 | 4.0 | 6.4 | 10.0 | 16.0 |
| 强度试验 Shell Test | 2.4 | 3.8 | 6.0 | 9.6 | 15.0 | 24.0 |
| 水密封试验 Water Seal Test | 1.8 | 2.8 | 4.4 | 7.0 | 11.0 | 18.0 |
| 上密封试验Backseat Test | 1.8 | 2.8 | 4.4 | 7.0 | 11.0 | 18.0 |
| 气密封试验 Air Seal Test | 0.5-0.7 |
主要零件材料及性能 Main Part Materials and Property
| 体、盖、板 Body Cover Disc | 阀杆Stem | 密封面 Sealing Face | 垫片SealingShim | 填料Packing | 工作温度℃ Working Temperature | 适用介质Suitable Medium | |
| WCB | 2Cr13 | 13CrSTL木体材料With BodyMaterial尼龙Nylon | 增强柔性石墨Enhanced Flexible Graphite13Cr/柔性石墨1Cr13/Flexible Graphite08软钢08 Soft Steal0Cr18Ni9Ti0Cr17Ni12Mo2TiXD550F(T)PTFE | 柔性石墨增强柔性石墨Flexible GraphiteEnhanced Flexible GraphiteSFB/260SFP/260PTFE | ≤425 | 水蒸汽油品WaterSteamPetroleumPtoducts | |
| WC1 | 38CrMoAl25Cr2MoV | ≤450 | |
| WC6 | ≤540 | |
| WC9 | ≤570 | |
| C5 C12 | ≤540 | |
| ZGCr5Mo | ≤200 | 硝酸类Nitric acid | |
| ZG1Cr18Ni9Ti | 1Cr18Ni9Ti | |
| ≤200 | 醋酸类Acetic acid | |
| ZG1Cr18Ni12Mo2Ti | 1Cr18Ni12Mo2Ti | |