厂商 ：上海西博思流体控制有限公司
上海市 上海市
联系电话 ：13816268805
商品详细描述
| 对夹升降式止回阀由阀体、阀瓣、弹簧等组成，水平或垂直安装于管路系统，防止介质倒流. |
流体力学性能：H71对夹双瓣旋启式止回阀的流体阻力系数、流量系数及开启压力：
公称通径
|
阀门全开启时的流体阻力系数
|
常温下阀门全开启时的水讲E量系数
|
流体的流向
|
DN
|
NPS
|
Kv(m3=／h)
|
CV(U.S)
|
CV(U.K)
|
↑
|
↓
|
→
|
开启压力近似值KPa
|
15
|
1/2
|
6.4
|
2.6
|
3.0
|
2.5
|
3
|
2
|
2.5
|
20
|
3/4
|
5.1
|
6.4
|
7.5
|
6.3
|
3
|
2
|
2.5
|
25
|
4
|
4.1
|
12.6
|
14.8
|
12.3
|
3
|
2
|
2.5
|
32
|
11/4
|
4.1
|
19.7
|
23.1
|
19.3
|
3
|
2
|
2.5
|
40
|
11/2
|
3.8
|
29.5
|
63.9
|
28.9
|
3
|
2
|
2.5
|
50
|
2
|
3.5
|
54.6
|
99.9
|
63.5
|
3
|
2
|
2.5
|
65
|
21/2
|
3.5
|
85.4
|
150
|
83.7
|
3
|
2
|
2.5
|
80
|
3
|
3.2
|
128
|
286
|
125
|
3
|
2
|
2.5
|
100
|
4
|
2.8
|
244
|
286
|
249
|
3
|
2
|
2.5
|
125
|
5
|
2.9
|
375
|
439
|
368
|
3
|
1
|
2.2
|
150
|
6
|
3.1
|
522
|
611
|
512
|
3
|
1
|
2.2
|
200
|
8
|
3.2
|
915
|
1070
|
897
|
3
|
1
|
2.2
|
公称压女
PN
MPa
|
公称通径
DN
mm
|
尺寸(mm)
|
重量
(Kg)
|
配管法兰(供参考)
|
L
|
D
|
D2
|
D3
|
D4
|
D5
|
螺栓孔中心
圆直径Dl
|
螺栓
数量
|
螺栓直径d
|
螺栓
长度Ll
|
PN1.0MPa
PN1.6MPa
|
15
|
16
|
52
|
15
|
24
|
31
|
40
|
0.12
|
65
|
4
|
M12
|
75
|
20
|
19
|
62
|
19
|
30
|
40
|
50
|
0.24
|
75
|
4
|
M12
|
90
|
25
|
22
|
70
|
24
|
36
|
47
|
58
|
0.34
|
85
|
4
|
M12
|
90
|
32
|
28
|
83
|
31
|
46
|
56
|
68
|
0.53
|
100
|
4
|
M16
|
100
|
40
|
31.5
|
93
|
39
|
55
|
66
|
78
|
0.80
|
110
|
4
|
M16
|
105
|
|
50
|
40
|
108
|
48
|
65
|
78
|
90
|
1.2
|
125
|
4
|
M16
|
125
|
|
65
|
46
|
128
|
62
|
80
|
95
|
110
|
1.8
|
145
|
4
|
M16
|
130
|
80
|
50
|
142
|
76
|
96
|
110
|
125
|
2.2
|
160
|
8
|
M16
|
135
|
100
|
65
|
162
|
95
|
115
|
135
|
150
|
3.4
|
180
|
8
|
M16
|
150
|
125
|
90
|
192
|
110
|
125
|
132
|
-
|
9.0
|
210
|
8
|
M16
|
180
|
150
|
106
|
218
|
127
|
150
|
158
|
-
|
14
|
240
|
8
|
M20
|
210
|
PN1.0MPa
|
200
|
140
|
273
|
165
|
200
|
208
|
-
|
24
|
295
|
8
|
M20
|
240
|
PN1.6MPa
|
200
|
140
|
273
|
165
|
200
|
208
|
-
|
24
|
295
|
12
|
M20
|
240
|
PN2.5MPa
|
15
|
16
|
52
|
15
|
24
|
31
|
40
|
0.12
|
65
|
4
|
M12
|
80
|
20
|
19
|
62
|
19
|
30
|
40
|
50
|
0.24
|
75
|
4
|
M12
|
90
|
25
|
22
|
72
|
24
|
36
|
47
|
58
|
0.34
|
85
|
4
|
M12
|
90
|
32
|
28
|
83
|
31
|
46
|
56
|
68
|
0.53
|
100
|
4
|
M16
|
110
|
40
|
31.5
|
93
|
39
|
55
|
66
|
78
|
0.80
|
110
|
4
|
M16
|
115
|
50
|
40
|
108
|
48
|
65
|
78
|
90
|
1.2
|
125
|
4
|
M16
|
125
|
65
|
46
|
128
|
62
|
80
|
95
|
110
|
1.8
|
145
|
8
|
M16
|
135
|
80
|
50
|
142
|
76
|
96
|
110
|
128
|
2.2
|
160
|
8
|
M16
|
145
|
100
|
60
|
168
|
95
|
115
|
135
|
150
|
3.8
|
190
|
8
|
M20
|
160
|
125
|
90
|
194
|
110
|
125
|
132
|
-
|
9.2
|
220
|
8
|
M24
|
205
|
150
|
106
|
224
|
127
|
150
|
158
|
-
|
15
|
250
|
8
|
M24
|
225
|
200
|
140
|
284
|
165
|
200
|
208
|
-
|
26
|
310
|
12
|
M24
|
260
|
|
