|
類型
|
設(shè)計與制造
|
結(jié)構(gòu)長度
|
法蘭尺寸
|
壓力～溫度
|
試驗～檢驗
|
|
旋啟式止回閥
|
ANSI B16.34
|
ANSI B16.10
|
ANSI B16.15
|
ANSI B16.34
|
API 598
|
|
升降式止回閥
|
BS 1868
|
|
公稱壓力（Lb）
|
150
|
300
|
600
|
|
|
強度試驗
|
MPa
|
3.1
|
7.8
|
15.3
|
|
Lbf/in2
|
450
|
1125
|
2225
|
|
|
水密封試驗
|
MPa
|
2.2
|
5.6
|
11.2
|
|
Lbf/in2
|
315
|
815
|
1630
|
|
|
氣密封試驗
|
MPa
|
0.5～0.7
|
||
|
Lbf/in2
|
60～100
|
|||
|
體、蓋、瓣、搖桿、導向套
|
銷軸
|
墊片
|
密封面
|
工作溫度
（℃） |
適用介質(zhì)
|
|
WCB
|
2Cr13
|
增強柔性石墨
1Cr13/柔性石墨 不銹鋼/ 耐酸石棉 PTFE 齒型墊片 |
13Cr
STL 本體材料 PTFE 尼龍 |
≤425
|
水、蒸汽、油品、
硝酸類、醋酸類、 強氧化介質(zhì)、尿素 |
|
WC1
|
≤450
|
||||
|
WC6
|
≤540
|
||||
|
WC9
|
≤570
|
||||
|
C5 C12
|
≤550
|
||||
|
CF8
|
304
|
≤600
|
|||
|
CF3
|
316
|
||||
|
CF8M
|
304L
|
||||
|
CF3M
|
316L
|
|
NPS
|
DN
|
Class 150Lb
|
WT(Kg)
|
||||||
|
in
|
mm
|
L
|
D
|
D1
|
D2
|
b
|
Z-Φd
|
H
|
|
|
2"
|
50
|
203
|
157
|
120.7
|
92
|
19.50
|
4-Φ19
|
161
|
17
|
|
21/2"
|
65
|
216
|
178
|
139.7
|
105
|
22.5
|
4-Φ19
|
180
|
23
|
|
3"
|
80
|
241
|
190.5
|
152.4
|
127
|
24
|
4-Φ19
|
190
|
33
|
|
4"
|
100
|
292
|
229
|
190.50
|
157.2
|
24
|
8-Φ19
|
220
|
44
|
|
6"
|
150
|
356
|
279
|
241.5
|
216
|
25.5
|
8-Φ22.5
|
257
|
78
|
|
8"
|
200
|
495
|
343
|
298.5
|
270
|
29
|
8-Φ22.5
|
292
|
137
|
|
10"
|
250
|
622
|
406
|
362
|
324
|
30.5
|
12-Φ25
|
350
|
207
|
|
12"
|
300
|
698
|
483
|
432
|
381
|
32
|
12-Φ25
|
398
|
279
|
|
14"
|
350
|
787
|
533
|
476.8
|
413
|
35
|
12-Φ29
|
445
|
387
|
|
16"
|
400
|
864
|
597
|
539.8
|
470
|
37
|
16-Φ29
|
490
|
446
|
|
18"
|
450
|
978
|
635
|
577.8
|
533
|
40
|
16-Φ32
|
520
|
621
|
|
20"
|
500
|
978
|
698
|
635
|
584
|
43
|
20-Φ32
|
546
|
770
|
|
24"
|
600
|
1295
|
813
|
749.3
|
692
|
48
|
20-Φ35
|
880
|
970
|
|
Class 300Lb
|
|||||||||
|
2"
|
50
|
267
|
165
|
127
|
92
|
22.5
|
8-Φ19
|
179.5
|
20
|
|
21/2"
|
65
|
292
|
190
|
150
|
105
|
25
|
8-Φ22
|
190
|
24
|
|
3"
|
80
|
318
|
210
|
168
|
127
|
29.0
|
8-Φ22.5
|
212.4
|
40
|
|
4"
|
100
|
356
|
254
|
200
|
157
|
32.0
|
8-Φ22.5
|
246
|
51
|
|
6"
|
150
|
445
|
317.5
|
269.7
|
216
|
37.0
|
12-Φ22.5
|
292
|
90
|
|
8"
|
200
|
533
|
381
|
330
|
270
|
41.5
|
12-Φ25.5
|
328
|
175
|
|
10"
|
250
|
622
|
444.5
|
387
|
324
|
48.0
|
16-Φ28.5
|
378.6
|
210
|
|
12"
|
300
|
711
|
521
|
451
|
381
|
51.0
|
16-Φ32
|
420
|
286
|
|
14"
|
350
|
838
|
584
|
514
|
54
|
54
|
20-Φ32
|
470
|
400
|
|
16"
|
400
|
864
|
648
|
572
|
57
|
57
|
20-Φ35
|
530
|
550
|
|
18"
|
450
|
978
|
711
|
629
|
60
|
60
|
24-Φ35
|
584
|
700
|
|
20"
|
500
|
1016
|
775
|
686
|
64
|
64
|
24-Φ35
|
610
|
860
|
|
24"
|
600
|
1346
|
914
|
813
|
70
|
70
|
24-Φ41
|
860
|
1931
|
|
Class 600Lb
|
|||||||||
|
2"
|
50
|
292
|
165
|
127
|
92
|
25
|
8-Φ19
|
203
|
34
|
|
21/2"
|
65
|
330
|
190
|
150
|
105
|
29
|
8-Φ22
|
229
|
45
|
|
3"
|
80
|
356
|
210
|
168
|
127
|
32
|
8-Φ22
|
235
|
63
|
|
4"
|
100
|
432
|
273
|
216
|
157
|
38
|
8-Φ25
|
286
|
114
|
|
6"
|
150
|
559
|
356
|
292
|
216
|
48
|
8-Φ29
|
330
|
207
|
|
8"
|
200
|
660
|
419
|
349
|
270
|
56
|
12-Φ29
|
381
|
387
|
|
10"
|
250
|
787
|
508
|
432
|
324
|
64
|
12-Φ32
|
457
|
580
|
|
12"
|
300
|
838
|
559
|
489
|
381
|
67
|
16-Φ35
|
584
|
778
|
|
14"
|
350
|
889
|
603
|
527
|
413
|
70
|
20-Φ38
|
635
|
9869
|
|
16"
|
400
|
991
|
686
|
603
|
470
|
76
|
20-Φ41
|
684
|
1380
|
