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 |
法兰尺寸 |
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 |
密封面 Sealing Face |
垫片 |
填料 |
工作温度℃ Working Temperature |
适用介质Suitable Medium |
|
WCB |
2Cr13 |
13Cr STL 木体材料 With Body Material 尼龙 Nylon |
增强柔性石墨 Enhanced Flexible Graphite 13Cr/柔性石墨 1Cr13/Flexible Graphite 08软钢 08 Soft Steal 0Cr18Ni9Ti 0Cr17Ni12Mo2Ti XD550F(T) PTFE |
柔性石墨 增强柔性石墨 Flexible Graphite Enhanced Flexible Graphite SFB/260 SFP/260 PTFE
|
≤425 |
水 蒸汽 Water Steam Petroleum Ptoducts |
|
WC1 |
38CrMoAl 25Cr2MoV |
≤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 |
波纹管截止阀
J41H截止阀|法兰高压截止阀
不锈钢三通抗生素截止阀