手動(dòng)截止閥概述: 手動(dòng)截止閥是一種直通式截止閥,它依靠閥桿壓力,使閥瓣密封面與閥座密封面緊密結(jié)合,陰止介質(zhì)流通。在啟閉過(guò)程中密封面之間摩擦力小,耐磨,開(kāi)啟高度小,制造工藝性能好等特點(diǎn)。它是工業(yè)部門(mén)中使用最廣泛的一種閥門(mén)。
手動(dòng)截止閥特點(diǎn)結(jié)構(gòu): 1、與閘閥相比,截止閥的結(jié)構(gòu)較簡(jiǎn)單,制造和維修都比較方便 2、密封面不易磨損、擦傷、密封性能較好,壽命較長(zhǎng) 3、啟閉時(shí)閥瓣行程較小,啟閉時(shí)間較短。相比,截止閥的結(jié)構(gòu)較簡(jiǎn)單,制造和維修都比較方便
手動(dòng)截止閥設(shè)計(jì)與制造標(biāo)準(zhǔn): 設(shè)計(jì)與制造:GB12233 法蘭尺寸:JB/T79 GB9113 結(jié)構(gòu)長(zhǎng)度:GB12221 檢驗(yàn)與實(shí)驗(yàn):GB/T13927
手動(dòng)截止閥主要外形連接尺寸:
|
公稱壓力 PN |
公稱通徑 DN |
主要連接尺寸 |
|
L |
D |
D1 |
D2 |
D6 |
b |
f |
f1 |
Z-φd |
|
1.6MPa |
15 |
130 |
95 |
65 |
45 |
- |
14 |
2 |
- |
4-14 |
|
20 |
150 |
105 |
75 |
55 |
- |
14 |
2 |
- |
4-14 |
|
25 |
160 |
115 |
85 |
65 |
- |
14 |
2 |
- |
4-14 |
|
32 |
180 |
135 |
100 |
78 |
- |
15 |
2 |
- |
4-18 |
|
40 |
200 |
146 |
110 |
85 |
- |
16 |
2 |
- |
4-18 |
|
50 |
230 |
160 |
125 |
100 |
- |
16 |
3 |
- |
4-18 |
|
65 |
290 |
180 |
145 |
120 |
- |
18 |
3 |
- |
4-18 |
|
80 |
310 |
195 |
160 |
135 |
- |
20 |
3 |
- |
8-18 |
|
100 |
350 |
215 |
180 |
155 |
- |
20 |
3 |
- |
8-18 |
|
125 |
400 |
245 |
210 |
185 |
- |
22 |
3 |
- |
8-18 |
|
150 |
480 |
280 |
240 |
210 |
- |
24 |
3 |
- |
8-23 |
|
2.5MPa |
15 |
130 |
95 |
65 |
45 |
- |
16 |
2 |
- |
4-14 |
|
20 |
150 |
105 |
75 |
55 |
- |
16 |
2 |
- |
4-14 |
|
25 |
160 |
115 |
85 |
65 |
- |
16 |
2 |
- |
4-14 |
|
32 |
180 |
135 |
100 |
78 |
- |
18 |
2 |
- |
4-18 |
|
40 |
200 |
145 |
110 |
85 |
- |
18 |
3 |
- |
4-18 |
|
50 |
230 |
160 |
125 |
100 |
- |
20 |
3 |
- |
4-18 |
|
65 |
290 |
180 |
145 |
120 |
- |
22 |
3 |
- |
8-18 |
|
80 |
310 |
195 |
160 |
135 |
- |
22 |
3 |
- |
8-18 |
|
100 |
350 |
230 |
190 |
160 |
- |
24 |
3 |
- |
8-23 |
|
125 |
400 |
270 |
220 |
188 |
- |
28 |
3 |
- |
8-25 |
|
150 |
480 |
300 |
250 |
218 |
- |
30 |
3 |
- |
8-25 |
|
200 |
600 |
360 |
310 |
278 |
- |
34 |
3 |
- |
12-25 |
|
250 |
650 |
425 |
370 |
332 |
- |
36 |
3 |
- |
12-30 |
|
300 |
750 |
485 |
430 |
390 |
- |
40 |
4 |
- |
16-34 |
|
4.0MPa |
15 |
130 |
95 |
65 |
45 |
40 |
16 |
2 |
4 |
4-14 |
|
20 |
150 |
105 |
75 |
55 |
51 |
16 |
2 |
4 |
4-14 |
|
25 |
160 |
115 |
85 |
65 |
58 |
16 |
2 |
4 |
4-14 |
|
32 |
180 |
135 |
100 |
78 |
66 |
18 |
3 |
4 |
4-18 |
|
40 |
200 |
145 |
110 |
85 |
76 |
18 |
3 |
4 |
4-18 |
|
50 |
230 |
160 |
125 |
100 |
88 |
20 |
3 |
4 |
4-18 |
|
65 |
290 |
180 |
145 |
120 |
110 |
22 |
3 |
4 |
8-18 |
|
80 |
310 |
195 |
160 |
135 |
121 |
22 |
3 |
4 |
8-18 |
|
100 |
350 |
230 |
190 |
160 |
150 |
24 |
3 |
4.5 |
8-23 |
|
125 |
400 |
270 |
220 |
188 |
176 |
28 |
3 |
4.5 |
8-25 |
|
150 |
480 |
300 |
250 |
218 |
204 |
30 |
3 |
4.5 |
8-25 |
|
200 |
600 |
375 |
320 |
282 |
260 |
38 |
3 |
4.5 |
12-30 |
|
6.4MPa |
15 |
170 |
105 |
75 |
55 |
41 |
18 |
2 |
4 |
4-18 |
|
20 |
190 |
125 |
90 |
68 |
51 |
20 |
2 |
4 |
4-18 |
|
25 |
210 |
135 |
100 |
78 |
58 |
22 |
2 |
4 |
4-18 |
|
32 |
230 |
150 |
110 |
82 |
66 |
24 |
3 |
4 |
4-23 |
|
40 |
260 |
165 |
125 |
95 |
76 |
24 |
3 |
4 |
4-23 |
|
50 |
300 |
175 |
135 |
105 |
88 |
26 |
3 |
4 |
4-23 |
|
65 |
340 |
200 |
160 |
130 |
110 |
28 |
3 |
4 |
8-23 |
|
80 |
380 |
210 |
170 |
140 |
121 |
30 |
3 |
4 |
8-23 |
|
100 |
430 |
250 |
200 |
168 |
150 |
32 |
3 |
4.5 |
8-25 |
|
150 |
550 |
340 |
280 |
240 |
204 |
38 |
3 |
4.5 |
8-34 | |