截止閥的啟閉件是塞形的閥瓣，密封面呈平面或錐面，閥瓣沿流體的中心線作直線運(yùn)動(dòng)。閥桿的運(yùn)動(dòng)形式，有升降桿式（閥桿升降，上海工良閥門有限公司手輪不升降），也有升降旋轉(zhuǎn)桿式（手輪與閥桿一起旋轉(zhuǎn)升降，螺母設(shè)在閥體上）。截止閥只適用于全開(kāi)和全關(guān)，不允許作調(diào)節(jié)和節(jié)流。
保溫截止閥具有保溫,保冷特性,適用于石油,化工,冶金,制藥等行業(yè).
| 產(chǎn)品型號(hào) |
閥體、閥蓋 |
閥 瓣 |
填 料 |
| BJ45W-25P、BJ45W-40P、BJ45W-64P |
ZG1Cr18Ni9Ti |
1Cr18Ni9Ti |
PTFE |
| 聚四乙稀 |
| BJ45W-25P/R、BJ45W-40P、BJ45W-64P |
ZG1Cr18Ni12Mo2Ti |
1Cr18Ni12Mo2Ti |
PTFE |
| 聚四乙稀 |
| 型號(hào) |
公稱壓力PN(Mpa) |
試驗(yàn)壓力 |
適用溫度 |
適用介質(zhì) |
保溫套壓力 |
| shell |
seal |
| BJ45W-25P |
2.5 |
3.75 |
2.75 |
≤200 |
Acetic urea
1 |
≤1.3 |
| BJ45W-40P |
4.0 |
6.0 |
4.4 |
| BJ45W-64P |
6.4 |
9.0 |
6.6 |
Acetic urea |
| BJ45W-25P |
2.5 |
3.75 |
2.75 |
| BJ45W-40P |
4.0 |
6.0 |
4.4 |
| BJ45W-64P |
6.4 |
9.0 |
6.6 |
| 公稱壓力 |
公稱通徑 |
尺 寸 |
| L |
D |
D1 |
D2 |
D3 |
B1 |
Fo |
b |
D6 |
3-G |
Z-Φd |
H |
H1 |
Do |
2.5
4.0 |
15 |
170 |
105 |
75 |
55 |
35 |
8 |
4 |
16 |
51 |
3/8 |
4-Φ14 |
250 |
262 |
120 |
| 20 |
190 |
115 |
115 |
65 |
42 |
8 |
4 |
16 |
58 |
3/8 |
4-Φ14 |
292 |
308 |
140 |
| 25 |
210 |
135 |
135 |
78 |
50 |
8 |
4 |
18 |
66 |
3/8 |
4-Φ18 |
340 |
375 |
160 |
| 32 |
230 |
145 |
145 |
85 |
60 |
8 |
4 |
18 |
76 |
3/8 |
4-Φ18 |
338 |
375 |
160 |
2.5
4.0 |
40 |
260 |
160 |
125 |
100 |
72 |
8 |
4 |
20 |
65 |
1/2 |
4-Φ18 |
360 |
386 |
160 |
| 50 |
300 |
180 |
145 |
120 |
94 |
8 |
4 |
22 |
88 |
1/2 |
8-Φ18 |
410 |
450 |
240 |
| 65 |
340 |
195 |
160 |
130 |
105 |
8 |
4 |
22 |
110 |
1/2 |
8-Φ18 |
440 |
485 |
240 |
| 80 |
380 |
230 |
190 |
160 |
128 |
11 |
4.5 |
24 |
121 |
1/2 |
8-Φ23 |
540 |
600 |
280 |
| 100 |
430 |
270 |
220 |
188 |
154 |
11 |
4.5 |
28 |
150 |
1/2 |
8-Φ25 |
560 |
625 |
320 |
| 125 |
|
300 |
250 |
218 |
182 |
11 |
4.5 |
30 |
176 |
1/2 |
8-Φ25 |
625 |
737 |
360 |
| 150 |
550 |
330 |
280 |
248 |
2 |
11 |
4.5 |
32 |
204 |
1/2 |
12-Φ25 |
720 |
790 |
360 |
| 6.4 |
25 |
235 |
160 |
125 |
8 |
50 |
8 |
4 |
22 |
|
1/2 |
4-Φ18 |
375 |
375 |
160 |
| 32 |
260 |
165 |
125 |
88 |
60 |
8 |
4 |
24 |
|
1/2 |
4-Φ23 |
383 |
383 |
160 |
| 50 |
300 |
200 |
160 |
130 |
|
|
4 |
26 |
110 |
1/2 |
8-Φ23 |
450 |
450 |
240 |
| 65 |
340 |
210 |
170 |
140 |
|
|
4 |
30 |
121 |
1/2 |
8-Φ23 |
510 |
510 |
240 |
| 100 |
430 |
270 |
220 |
188 |
154 |
154 |
4.5 |
36 |
|
1/2 |
8-Φ25 |
670 |
670 |
400 |
| 100 |
415 |
300 |
250 |
218 |
|
|
4.5 |
32 |
|
1/2 |
8-Φ25 |
670 |
670 |
400 |
