H44H旋启式止回阀
H44H旋启式止回阀产品概况
H44H/W旋启式止回阀严格按 GB12236 标准设计制造，销轴与阀瓣连接采用内装式结构，性能优良，密封更可靠。产品广泛应用于石油、化工、制药、电力行业等各种工况的管路上。
主要性能规范
|
试验压力(MPa) Seat test
|
公称压力PN(MPa)Nominal pressure
|
|||||||
|
1.6
|
2.5
|
4.0
|
6.4
|
10.0
|
16
|
20
|
25
|
|
|
壳体强度试验Shellstrength test
|
2.4
|
3.75
|
6.0
|
9.6
|
15.0
|
24
|
30
|
38
|
|
密封试验(液)Seal test
|
1.76
|
2.75
|
4.4
|
7.0
|
11.0
|
17.6
|
22
|
27.5
|
|
密封试验(气)Seal test
|
0.5~0.7
|
|||||||
|
工作温度℃ Applicable temperature
|
<425
|
<200
|
<200
|
≤550
|
||||
|
适用介质Applicable medium
|
C
|
P
|
R
|
I
|
||||
|
水、油品、蒸汽
|
硝酸类
|
醋酸类
|
空气、水
|
|||||
结构长度：GB12221-89
法兰标准：JB79-94
设计标准：GB/T12235-89
试压标准：GB/T13927-92
主要外型及连接尺寸(mm)H44 H Y W-200
|
公称通径DN Nominal Diameter
|
尺寸Dimensins(JB79)
|
||||||||
|
L
|
D
|
D1
|
D2
|
D6
|
b
|
f1
|
Z-d
|
H
|
|
|
50
|
300
|
210
|
160
|
128
|
70
|
40
|
3
|
8-25
|
120
|
|
65
|
340
|
260
|
203
|
165
|
97
|
48
|
3
|
8-30
|
190
|
|
80
|
380
|
290
|
230
|
190
|
116
|
54
|
3
|
8-34
|
210
|
|
100
|
430
|
360
|
292
|
245
|
138
|
66
|
3
|
8-41
|
240
|
|
150
|
550
|
440
|
360
|
305
|
190
|
82
|
3
|
12-48
|
343
|
|
200
|
650
|
535
|
440
|
380
|
245
|
92
|
3
|
12-48
|
320
|
|
250
|
775
|
670
|
572
|
508
|
319
|
110
|
3
|
16-48
|
380
|
H44 H Y W-250
|
公称通径DN Nominal Diameter
|
尺寸Dimensins(GB9113.25)
|
||||||||||
|
L
|
D
|
D1
|
D2
|
D8
|
b
|
b4
|
f1
|
f3
|
Z-d
|
H
|
|
|
50
|
300
|
215
|
165
|
124
|
95
|
38
|
12
|
8
|
8
|
8-26
|
220
|
|
65
|
340
|
245
|
190
|
137
|
108
|
41
|
12
|
8
|
8
|
8-30
|
230
|
|
80
|
380
|
270
|
203
|
168
|
137
|
48
|
12
|
8
|
8
|
8-33
|
245
|
|
100
|
430
|
310
|
241
|
194
|
162
|
54
|
12
|
8
|
8
|
8-36
|
280
|
|
150
|
550
|
395
|
318
|
248
|
211
|
83
|
13
|
9.5
|
925
|
12-39
|
340
|
|
200
|
650
|
485
|
394
|
318
|
270
|
92
|
17
|
11
|
11
|
12-45
|
360
|
|
250
|
775
|
585
|
483
|
371
|
324
|
108
|
17
|
11
|
11
|
12-52
|
395
|
|
300
|
900
|
675
|
571
|
438
|
381
|
124
|
23
|
14
|
14
|
16-56
|
478
|
主要外型及连接尺寸(mm)
|
公称压力PN（MPa）Nominal Pressure
|
公称通径DN Nominal Diameter
|
L
|
H
|
D
|
D1
|
D2
|
D6
|
b
|
f1
|
f2
|
Z-d
|
|
1.6
|
50
|
230
|
160
|
160
|
125
|
100
|
-
|
16
|
3
|
-
|
48
|
|
65
|
290
|
175
|
180
|
145
|
120
|
-
|
18
|
3
|
-
|
48
|
|
|
80
|
310
|
185
|
195
|
160
|
135
|
-
|
20
|
3
|
-
|
88
|
|
|
100
|
350
|
220
|
215
|
180
|
155
|
-
|
20
|
3
|
-
|
88
|
|
|
125
|
400
|
248
|
245
|
210
|
185
|
-
|
22
|
3
|
-
|
88
|
|
|
150
|
480
|
276
|
280
|
240
|
210
|
-
|
24
|
3
|
-
|
8-23
|
|
|
200
|
550
|
350
|
335
|
295
|
265
|
-
|
26
|
3
|
-
|
12-23
|
|
|
250
|
650
|
410
|
405
|
355
|
320
|
-
|
30
|
3
|
-
|
12-25
|
|
|
300
|
750
|
430
|
460
|
410
|
375
|
-
|
30
|
4
|
-
|
12-25
|
|
|
350
|
850
|
518
|
520
|
470
|
435
|
-
|
34
|
4
|
-
|
16-25
|
|
|
400
|
950
|
560
|
580
|
525
|
485
|
-
|
36
|
4
|
-
|
16-30
|
|
|
500
|
1150
|
618
|
705
|
650
|
608
|
-
|
44
|
4
|
-
|
20-34
|
|
|
2.5
|
50
|
230
|
160
|
160
|
125
|
100
|
-
|
20
|
3
|
-
|
48
|
|
65
|
290
|
175
|
180
|
145
|
120
|
-
|
22
|
3
|
-
|
88
|
|
|
80
|
310
|
185
|
195
|
160
|
135
|
-
|
22
|
3
|
-
|
88
|
|
|
100
|
350
|
220
|
230
|
190
|
160
|
-
|
24
|
3
|
-
|
8-23
|
|
|
125
|
400
|
248
|
270
|
220
|
188
|
-
|
28
|
3
|
-
|
8-25
|
|
|
150
|
480
|
276
|
300
|
250
|
218
|
-
|
30
|
3
|
-
|
8-25
|
|
|
200
|
550
|
350
|
360
|
310
|
278
|
-
|
34
|
3
|
-
|
12-25
|
|
|
250
|
650
|
410
|
425
|
370
|
332
|
-
|
36
|
3
|
-
|
12-30
|
|
|
300
|
750
|
430
|
485
|
430
|
390
|
-
|
40
|
4
|
-
|
16-30
|
|
|
350
|
850
|
518
|
550
|
490
|
448
|
-
|
44
|
4
|
-
|
16-34
|
|
|
400
|
950
|
560
|
610
|
550
|
505
|
-
|
48
|
4
|
-
|
16-34
|
|
|
500
|
1150
|
618
|
730
|
660
|
610
|
-
|
52
|
4
|
-
|
20-41
|
|
|
4.0
|
50
|
230
|
169
|
160
|
125
|
100
|
88
|
20
|
3
|
4
|
48
|
|
65
|
290
|
173
|
180
|
145
|
120
|
110
|
22
|
3
|
4
|
88
|
|
|
80
|
310
|
185
|
195
|
160
|
135
|
121
|
22
|
3
|
4
|
88
|
|
|
100
|
350
|
220
|
230
|
190
|
160
|
150
|
24
|
3
|
4.5
|
8-23
|
|
|
125
|
400
|
248
|
270
|
220
|
188
|
176
|
28
|
3
|
4.5
|
8-25
|
|
|
150
|
480
|
270
|
300
|
250
|
218
|
204
|
30
|
3
|
4.5
|
8-25
|
|
|
200
|
550
|
342
|
375
|
320
|
282
|
260
|
38
|
3
|
4.5
|
12-30
|
|
|
250
|
650
|
401
|
445
|
385
|
345
|
313
|
42
|
3
|
4.5
|
12-34
|
|
|
300
|
750
|
423
|
510
|
450
|
408
|
364
|
46
|
4
|
4.5
|
16-34
|
|
|
350
|
850
|
455
|
570
|
510
|
465
|
422
|
52
|
4
|
5
|
16-34
|
|
|
400
|
950
|
510
|
655
|
585
|
535
|
474
|
58
|
4
|
5
|
16-41
|
|
|
6.4
|
50
|
300
|
177
|
175
|
135
|
105
|
88
|
26
|
3
|
4
|
4-23
|
|
65
|
340
|
197
|
200
|
160
|
130
|
110
|
28
|
3
|
4
|
8-23
|
|
|
80
|
380
|
212
|
210
|
170
|
140
|
121
|
30
|
3
|
4
|
8-23
|
|
|
100
|
430
|
248
|
250
|
200
|
168
|
150
|
32
|
3
|
4.5
|
8-25
|
|
|
125
|
500
|
296
|
295
|
240
|
202
|
176
|
36
|
3
|
4.5
|
8-30
|
|
|
150
|
550
|
330
|
340
|
280
|
240
|
204
|
38
|
3
|
4.5
|
8-34
|
|
|
200
|
650
|
385
|
405
|
345
|
300
|
260
|
44
|
3
|
4.5
|
12-34
|
|
|
250
|
775
|
445
|
470
|
400
|
352
|
313
|
48
|
4
|
4.5
|
12-41
|
|
|
300
|
900
|
474
|
530
|
460
|
412
|
364
|
54
|
4
|
4.5
|
16-41
|
|
|
400
|
1025
|
514
|
595
|
525
|
475
|
422
|
60
|
4
|
5
|
16-41
|
|
|
10.0
|
50
|
300
|
210
|
195
|
145
|
112
|
88
|
28
|
3
|
4
|
4-25
|
|
65
|
340
|
227
|
220
|
170
|
138
|
110
|
32
|
3
|
4
|
8-25
|
|
|
80
|
380
|
235
|
230
|
180
|
148
|
121
|
34
|
3
|
4
|
8-25
|
|
|
100
|
430
|
274
|
265
|
210
|
172
|
150
|
38
|
3
|
4.5
|
8-30
|
|
|
125
|
500
|
307
|
310
|
250
|
210
|
176
|
42
|
3
|
4.5
|
8-34
|
|
|
150
|
550
|
347
|
350
|
290
|
250
|
204
|
46
|
3
|
4.5
|
12-34
|
|
|
200
|
650
|
402
|
430
|
360
|
312
|
260
|
54
|
3
|
4.5
|
12-41
|
|
|
250
|
775
|
432
|
500
|
430
|
382
|
313
|
60
|
3
|
4.5
|
12-41
|
|
|
300
|
900
|
484
|
585
|
500
|
442
|
364
|
70
|
4
|
4.5
|
16-48
|
|
|
16.0
|
50
|
300
|
210
|
215
|
165
|
132
|
88
|
36
|
3
|
4
|
8-25
|
|
65
|
340
|
227
|
245
|
190
|
152
|
110
|
44
|
3
|
4
|
8-30
|
|
|
80
|
380
|
235
|
260
|
205
|
168
|
121
|
46
|
3
|
4.5
|
8-30
|
|
|
100
|
430
|
274
|
300
|
240
|
200
|
150
|
48
|
3
|
4.5
|
8-34
|
|
|
150
|
550
|
340
|
390
|
318
|
270
|
205
|
66
|
3
|
4.5
|
12-41
|
|
|
200
|
650
|
374
|
480
|
400
|
345
|
250
|
78
|
3
|
4.5
|
12-48
|
|
|
250
|
775
|
440
|
580
|
485
|
425
|
313
|
88
|
3
|
4.5
|
12-54
|
|
|
300
|
900
|
505
|
665
|
570
|
510
|
364
|
100
|
3
|
4.5
|
16-54
|