升降式止回阀
详细介绍
◆主要性能规范
|
试验压力(MPa)
|
2.5
|
4.0
|
6.4
|
10.0
|
MPa
|
|
壳体强度试验
|
3.75
|
6.0
|
9.6
|
15.0
|
MPa
|
|
高压密封试验压力
|
2.75
|
4.4
|
7.04
|
11.0
|
MPa
|
|
低压气密封验压力
|
0.5-0.7
|
||||
|
适用介质
|
C 水、油品、气
|
P 醋酸类
|
R 硝酸类
|
N 液化气
|
|
|
适用温度
|
≤425℃
|
≤100℃
|
-40-+80℃
|
||
结构长度：GBl2221-89
法兰标准：JB79-59
法兰标准：JB79-59
◆主要外形尺寸和连接尺寸 单位：毫米
|
型号
|
公称通径
|
L
|
D
|
D1
|
D2
|
b
|
Z-φd
|
D6
|
H
|
|
1.6
|
25
|
160
|
115
|
85
|
65
|
16
|
4-φ14
|
-
|
80
|
|
32
|
180
|
135
|
100
|
78
|
16
|
4-φ18
|
-
|
85
|
|
|
40
|
200
|
145
|
110
|
85
|
16
|
4-φ18
|
-
|
95
|
|
|
50
|
230
|
160
|
125
|
100
|
16
|
4-φ18
|
-
|
105
|
|
|
65
|
290
|
180
|
145
|
125
|
18
|
4-φ18
|
-
|
120
|
|
|
80
|
310
|
195
|
160
|
135
|
20
|
8-φ18
|
-
|
130
|
|
|
100
|
350
|
215
|
180
|
155
|
20
|
8-φ18
|
-
|
140
|
|
|
125
|
400
|
245
|
210
|
185
|
22
|
8-φ18
|
-
|
155
|
|
|
150
|
480
|
280
|
240
|
210
|
24
|
8-φ23
|
-
|
180
|
|
|
200
|
600
|
335
|
295
|
265
|
26
|
12-φ23
|
-
|
215
|
|
|
250
|
730
|
405
|
355
|
320
|
32
|
12-φ25
|
-
|
260
|
|
|
300
|
850
|
460
|
410
|
375
|
34
|
12-φ25
|
-
|
315
|
|
|
2.5
|
20
|
150
|
105
|
75
|
55
|
16
|
4-φ14
|
-
|
80
|
|
25
|
160
|
115
|
85
|
65
|
16
|
4-φ14
|
-
|
80
|
|
|
32
|
180
|
135
|
100
|
78
|
18
|
4-φ18
|
-
|
120
|
|
|
40
|
200
|
145
|
110
|
85
|
18
|
4-φ18
|
-
|
140
|
|
|
50
|
230
|
160
|
125
|
100
|
20
|
4-φ18
|
-
|
145
|
|
|
65
|
290
|
180
|
145
|
120
|
22
|
8-φ18
|
-
|
160
|
|
|
80
|
310
|
195
|
160
|
135
|
22
|
8-φ18
|
-
|
170
|
|
|
100
|
350
|
230
|
190
|
160
|
24
|
8-φ23
|
-
|
195
|
|
|
125
|
400
|
270
|
220
|
188
|
28
|
8-φ25
|
-
|
222
|
|
|
150
|
480
|
300
|
250
|
218
|
30
|
8-φ25
|
-
|
255
|
|
|
200
|
600
|
360
|
310
|
278
|
34
|
12-φ25
|
-
|
312
|
|
|
250
|
730
|
425
|
370
|
332
|
36
|
12-φ30
|
-
|
3弱
|
|
|
300
|
850
|
485
|
430
|
390
|
40
|
16-φ30
|
-
|
410
|
|
|
4.0
|
15
|
130
|
95
|
65
|
45
|
16
|
4-φ14
|
40
|
80
|
|
20
|
150
|
105
|
75
|
55
|
16
|
4-φ14
|
51
|
100
|
|
|
25
|
160
|
115
|
85
|
65
|
16
|
4-φ14
|
58
|
110
|
|
|
32
|
180
|
135
|
100
|
78
|
18
|
4-φ18
|
66
|
120
|
|
|
40
|
200
|
145
|
110
|
85
|
18
|
4-φ18
|
76
|
140
|
|
|
50
|
230
|
160
|
125
|
100
|
20
|
4-φ18
|
88
|
145
|
|
|
65
|
290
|
180
|
145
|
120
|
22
|
8-φ18
|
110
|
160
|
|
|
80
|
310
|
195
|
160
|
135
|
22
|
8-φ18
|
121
|
170
|
|
|
100
|
350
|
230
|
190
|
160
|
24
|
8-φ23
|
150
|
195
|
|
|
125
|
400
|
270
|
220
|
188
|
28
|
8-φ25
|
176
|
225
|
|
|
150
|
480
|
300
|
250
|
218
|
30
|
8-φ25
|
204
|
255
|
|
|
200
|
600
|
375
|
320
|
282
|
38
|
12-φ30
|
260
|
318
|
|
|
250
|
730
|
445
|
385
|
345
|
42
|
12-φ34
|
313
|
360
|
|
|
300
|
850
|
510
|
450
|
408
|
46
|
12-φ34
|
364
|
415
|
|
|
6.4
|
15
|
170
|
105
|
75
|
55
|
20
|
4-φ14
|
40
|
75
|
|
20
|
190
|
125
|
90
|
68
|
22
|
4-φ18
|
51
|
110
|
|
|
25
|
210
|
135
|
100
|
78
|
24
|
4-φ18
|
58
|
125
|
|
|
32
|
230
|
150
|
110
|
82
|
24
|
4-φ23
|
66
|
152
|
|
|
40
|
260
|
165
|
125
|
95
|
24
|
4-φ23
|
76
|
168
|
|
|
50
|
300
|
175
|
135
|
105
|
26
|
4-φ23
|
88
|
170
|
|
|
65
|
340
|
200
|
160
|
130
|
28
|
8-φ23
|
110
|
188
|
|
|
80
|
380
|
210
|
170
|
140
|
30
|
8-φ23
|
121
|
205
|
|
|
100
|
430
|
250
|
200
|
168
|
32
|
8-φ25
|
150
|
230
|
|
|
125
|
500
|
295
|
240
|
202
|
36
|
8-φ30
|
176
|
230
|
|
|
150
|
550
|
340
|
280
|
240
|
38
|
8-φ34
|
204
|
260
|
|
|
200
|
650
|
405
|
345
|
300
|
44
|
12-φ34
|
260
|
330
|
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