【产品用途】
dh44y 型150(lb)~600(lb) 低温旋启式止回阀适用于介质单向流动的管路上,阻止介质回流,以防发生事故。
主要外形和连接尺寸
公称通径
|
尺寸
|
mm
|
in
|
l
|
d
|
d1
|
d2
|
b
|
f
|
n-φd
|
h
|
dh44y-150lb
|
50
|
2
|
203
|
152
|
120.5
|
92
|
16
|
1.6
|
4-19
|
180
|
80
|
3
|
241
|
192
|
152.5
|
127
|
19
|
1.6
|
4-19
|
190
|
100
|
4
|
297
|
229
|
190.5
|
157
|
24
|
1.6
|
8-19
|
203
|
125
|
5
|
330
|
254
|
216
|
186
|
24
|
1.6
|
8-22
|
229
|
150
|
6
|
356
|
279
|
241.5
|
216
|
26
|
1.6
|
8-22
|
257
|
200
|
8
|
495
|
342
|
298.5
|
270
|
29
|
1.6
|
8-22
|
292
|
250
|
10
|
622
|
406
|
362
|
324
|
31
|
1.6
|
12-25
|
355
|
300
|
12
|
698
|
483
|
432
|
381
|
32
|
1.6
|
12-25
|
396
|
dh44y-300lb
|
50
|
2
|
267
|
165
|
127
|
92
|
23
|
1.6
|
8-19
|
178
|
80
|
3
|
318
|
210
|
168.5
|
127
|
29
|
1.6
|
8-22
|
216
|
100
|
4
|
356
|
254
|
200
|
157
|
32
|
1.6
|
8-22
|
241
|
125
|
5
|
400
|
279
|
235
|
186
|
35
|
1.6
|
8-22
|
267
|
150
|
6
|
444
|
318
|
270
|
216
|
37
|
1.6
|
12-22
|
305
|
200
|
8
|
533
|
381
|
330
|
270
|
42
|
1.6
|
12-25
|
368
|
250
|
10
|
622
|
445
|
387
|
324
|
48
|
1.6
|
16-29
|
394
|
300
|
12
|
711
|
521
|
451
|
381
|
51
|
1.6
|
16-32
|
445
|
dh44y-600lb
|
50
|
2
|
295
|
165
|
127
|
92
|
33
|
6.4
|
8-19
|
203
|
80
|
3
|
359
|
210
|
168
|
127
|
36
|
6.4
|
8-22
|
235
|
100
|
4
|
435
|
273
|
216
|
157
|
45
|
6.4
|
8-25
|
286
|
125
|
5
|
511
|
330
|
266.5
|
186
|
52
|
6.4
|
8-29
|
292
|
150
|
6
|
562
|
356
|
292
|
216
|
55
|
6.4
|
12-29
|
330
|
200
|
8
|
664
|
419
|
349
|
270
|
63
|
6.4
|
12-32
|
381
|
250
|
10
|
791
|
510
|
432
|
324
|
71
|
6.4
|
16-35
|
457
|
300
|
12
|
842
|
559
|
489
|
381
|
74
|
6.4
|
20-35
|
584
|
【结构图片】