一、H44J衬胶旋启式止回阀概述：
止回阀是一种依靠介质本身的流动而自动启、闭阀瓣用来阻止介质逆向流动的自动阀门。
二、H44J衬胶旋启式止回阀技术规范：
|
遵循规范 |
STANDARD |
|
设计与制造 |
GB/T 12235、GB/T12236 |
|
结构长度 |
GB/T 12221、JB/T 96 |
|
法兰尺寸 |
JB/T 78、JB/T 79 |
|
压力试验 |
GB/T 13927 |
|
标志 |
GB/T 12220 |
|
供货 |
GB/T 12252 |
三、H44J衬胶旋启式止回阀特点：
法兰连接止回阀
设计与制造符合中国国家标准
基本结构形成：旋启式，直通升降式
公称压力：PN1.0~1.6(MPa)
公称通径：DN15~500(mm)
基本型号：H41F3、H41F46、H44F3、H44F4
四、H44J衬胶旋启式止回阀连接尺寸：
|
公称通径 |
标准值 |
参考值 |
|||||||||
|
DN |
NPS |
L1 |
D |
D1 |
D2 |
f |
b |
Z-Φd |
Do |
H |
WT(Kg) |
|
PN0.6Pa |
|||||||||||
|
15 |
1/2 |
130 |
80 |
55 |
40 |
2 |
12 |
4-Φ12 |
105 |
55 |
4 |
|
20 |
3/4 |
150 |
90 |
65 |
50 |
2 |
14 |
4-Φ12 |
115 |
58 |
5 |
|
25 |
1 |
160 |
100 |
75 |
60 |
2 |
14 |
4-Φ12 |
128 |
60 |
6 |
|
32 |
11/4 |
180 |
120 |
90 |
70 |
2 |
16 |
4-Φ14 |
145 |
75 |
7 |
|
40 |
11/2 |
200 |
130 |
100 |
80 |
3 |
16 |
4-Φ14 |
160 |
82 |
8 |
|
50 |
2 |
230 |
140 |
110 |
90 |
3 |
16 |
4-Φ14 |
178 |
95 |
10 |
|
65 |
21/2 |
290 |
160 |
130 |
110 |
3 |
16 |
4-Φ14 |
205 |
105 |
20 |
|
80 |
3 |
310 |
185 |
150 |
125 |
3 |
18 |
4-Φ18 |
230 |
120 |
25 |
|
100 |
4 |
350 |
205 |
170 |
145 |
3 |
18 |
4-Φ18 |
255 |
135 |
30 |
|
125 |
5 |
400 |
235 |
200 |
175 |
3 |
20 |
8-Φ18 |
305 |
158 |
50 |
|
150 |
6 |
480 |
260 |
225 |
200 |
3 |
20 |
8-Φ18 |
345 |
180 |
65 |
|
200 |
8 |
495 |
315 |
280 |
255 |
3 |
22 |
8-Φ18 |
415 |
215 |
137 |
|
250 |
10 |
600 |
370 |
335 |
310 |
3 |
24 |
12-Φ18 |
490 |
240 |
150 |
|
公称通径 |
标准值 |
参考值 |
|||||||||
|
DN(mm) |
NPS |
L1 |
D |
D1 |
D2 |
f |
b |
Z-Φd |
B |
H |
WT(Kg) |
|
PN1.0MPa |
|||||||||||
|
15 |
1/2 |
130 |
95 |
65 |
45 |
2 |
14 |
4-Φ14 |
105 |
55 |
5 |
|
20 |
3/4 |
150 |
105 |
75 |
55 |
2 |
16 |
4-Φ14 |
115 |
58 |
7 |
|
25 |
1 |
160 |
115 |
85 |
65 |
2 |
16 |
4-Φ14 |
128 |
60 |
9 |
|
32 |
11/4 |
180 |
135 |
100 |
78 |
2 |
18 |
4-Φ18 |
145 |
75 |
11 |
|
40 |
11/2 |
200 |
145 |
110 |
85 |
3 |
18 |
4-Φ18 |
160 |
82 |
13.5 |
|
50 |
2 |
230 |
160 |
125 |
100 |
3 |
20 |
4-Φ18 |
178 |
95 |
18 |
|
65 |
21/2 |
290 |
180 |
145 |
120 |
3 |
20 |
4-Φ18 |
205 |
105 |
22 |
|
80 |
3 |
310 |
195 |
160 |
135 |
3 |
22 |
4-Φ18 |
230 |
120 |
28 |
|
100 |
4 |
350 |
215 |
180 |
155 |
3 |
22 |
8-Φ18 |
255 |
135 |
34 |
|
125 |
5 |
400 |
245 |
210 |
185 |
3 |
24 |
8-Φ18 |
305 |
158 |
58 |
|
150 |
6 |
480 |
280 |
240 |
210 |
3 |
24 |
8-Φ23 |
345 |
180 |
72 |
|
200 |
8 |
495 |
335 |
295 |
265 |
3 |
26 |
8-Φ23 |
415 |
215 |
150 |
|
250 |
10 |
622 |
390 |
350 |
320 |
3 |
28 |
12-Φ23 |
490 |
240 |
165 |
|
PN1.6MPa |
|||||||||||
|
15 |
1/2 |
130 |
95 |
65 |
45 |
2 |
14 |
110 |
55 |
6 |
|
|
20 |
3/4 |
150 |
105 |
75 |
55 |
2 |
16 |
120 |
58 |
7.8 |
|
|
25 |
1 |
160 |
115 |
85 |
65 |
2 |
16 |
135 |
60 |
10 |
|
|
32 |
11/4 |
180 |
135 |
100 |
78 |
2 |
18 |
150 |
75 |
12.5 |
|
|
40 |
11/2 |
200 |
145 |
110 |
85 |
3 |
18 |
165 |
82 |
14.5 |
|
|
50 |
2 |
230 |
160 |
125 |
100 |
3 |
20 |
185 |
95 |
19.5 |
|
|
65 |
21/2 |
290 |
180 |
145 |
120 |
3 |
20 |
210 |
105 |
25.5 |
|
|
80 |
3 |
310 |
195 |
160 |
135 |
3 |
22 |
235 |
120 |
30 |
|
|
100 |
4 |
350 |
215 |
180 |
155 |
3 |
24 |
260 |
135 |
36 |
|
|
125 |
5 |
400 |
245 |
210 |
185 |
3 |
26 |
310 |
158 |
62 |
|
|
150 |
6 |
480 |
280 |
240 |
210 |
3 |
28 |
350 |
180 |
78 |
|
|
200 |
8 |
495 |
335 |
295 |
265 |
3 |
30 |
420 |
215 |
156 |
|
|
250 |
10 |
600 |
405 |
355 |
320 |
3 |
32 |
505 |
240 |
172 |
|