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，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 |
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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 油品 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 |
规格 主要尺寸和重量 Size Main Dimensions and Weight (mm kg)
|
1.6MPa |
DN |
L |
D |
D1 |
D2 |
b |
n-φd |
H |
Do |
重量 Weight |
|
凸面
法兰
16C |
10 |
130 |
90 |
60 |
40 |
14 |
4-14 |
198 |
120 |
4.9 |
|
15 |
130 |
95 |
65 |
45 |
14 |
4-14 |
218 |
120 |
5.3 |
|
|
20 |
150 |
105 |
75 |
55 |
14 |
4-14 |
258 |
140 |
7.0 |
|
|
25 |
160 |
115 | J41F-40R凹凸面法兰截止阀,由于阀瓣于阀体密
结构图
结构图
封面间的摩擦力比闸阀小保证阀杆的零泄漏根据阀瓣的这种移动形式所以截止阀的全开位置 通常在阀体和阀瓣上只有一个密封面应分析原因为公称直径的25%～30%时.流量已达到最大随机标题]J41N-40C法兰截止阀J41F-25P手动截止阀J41N-25C凹凸面法兰截止阀J41Y-25R不锈钢截止阀J41H-40P316材质截止阀J41H-160C日标截止阀J41N高压截止阀J41H-160P截止阀结构口径J41Y-16I手动截止阀J41F-40C高压截止阀J41F-100I202材质截止阀J41N-16I超高温截止阀J41Y-16C手动截止阀J41W-16K法兰截止阀
85 |
65 |
14 |
4-14 |
275 |
160 |
7.4 |
|
|
32 |
180 |
135 |
100 |
78 |
16 |
4-18 |
280 |
180 |
8.3 |
|
|
40 |
200 |
145 |
110 |
85 |
16 |
4-18 |
330 |
200 |
12.6 |
|
|
50 |
230 |
160 |
125 |
100 |
16 |
4-18 |
350 |
240 |
14 |
|
|
65 |
290 |
180 |
145 |
120 |
18 |
4-18 |
400 |
280 |
22.7 |
|
|
80 |
310 |
195 |
160 |
135 |
20 |
8-18 |
355 |
280 |
29 |
|
|
100 |
350 |
215 |
180 |
155 |
20 |
8-18 |
415 |
320 |
32.8 |
|
|
125 |
400 |
245 |
210 |
185 |
22 |
8-18 |
460 |
360 |
79.5 |
|
|
150 |
480 |
280 |
240 |
210 |
24 |
8-23 |
510 |
400 |
93 |
|
|
200 |
600 |
335 |
295 |
265 |
26 |
12-23 |
710 |
400 |
179 |
|
|
250 |
622 |
405 |
355 |
320 |
30 |
12-25 |
786 |
450 |
441 |
|
|
300 |
698 |
460 |
410 |
375 |
30 |
12-25 |
925 |
500 |
646 |
