Lift check valve flow refers to rely on the media itself, and automatically open and close the disc, the valve is used to prevent the backflow medium, also called the non-return valve, check valve, flow valve, and the back pressure valve. Check valve belongs to a kind of automatic valve, its main role is to prevent the backflow medium, to prevent the pump and drive motor reversal, and the discharge of the container medium. Check valve can also be used to give the pressure could rise to more than the system pressure of the secondary system supply piping. Main can be divided into swing check valve check valve (in accordance with the center of gravity rotating) and lift check valve (mobile) along the axis.
体、盖、板 |
阀杆 |
密封面 |
垫片 |
密封面 |
工作温度℃ |
适用介质 |
WCB |
WCB |
1Cr13 |
增强柔性石墨 |
13Cr |
≤425 |
水蒸汽油品 |
WC6 |
WC6 |
≤540 |
||||
WC9 |
WC9 |
≤570 |
||||
ZGCr5Mo |
ZGCr5Mo |
≤550 |
||||
ZG1Cr18Ni9Ti |
ZG1Cr18Ni9Ti |
ZG1Cr18Ni9Ti |
≤200 |
硝酸类 |
||
ZG1Cr18Ni12Mo9Ti |
ZG1Cr18Ni12Mo9Ti |
ZG1Cr18Ni12Mo9Ti |
≤200 |
醋酸类 |
公称压力 |
1.6 |
2.5 |
4.0 |
6.4 |
10.0 |
16.0 |
强度试验 |
2.4 |
3.8 |
6.0 |
9.6 |
15.0 |
24.0 |
水密封试验 |
1.8 |
2.8 |
4.4 |
7.0 |
11.0 |
18.0 |
气密封试验 |
0.5-0.7 |
六、
1.6MPa |
DN |
L |
D |
D1 |
D2 |
b |
n-Φd |
H |
W(kg) |
凸面法兰
16C |
15 |
130 |
95 |
65 |
45 |
14 |
4-14 |
58 |
2.0 |
20 |
150 |
105 |
75 |
55 |
14 |
4-14 |
63 |
2.7 |
|
25 |
160 |
115 |
85 |
65 |
14 |
4-14 |
71 |
3.5 |
|
32 |
180 |
135 |
100 |
78 |
16 |
4-18 |
84 |
5.4 |
|
40 |
200 |
145 |
110 |
85 |
16 |
4-18 |
96 |
6.5 |
|
50 |
230 |
160 |
125 |
100 |
16 |
4-18 |
115 |
9.1 |
|
65 |
290 |
180 |
145 |
120 |
18 |
4-18 |
145 |
14 |
|
80 |
310 |
195 |
160 |
135 |
20 |
8-18 |
156 |
25 |
|
100 |
350 |
215 |
180 |
155 |
20 |
8-18 |
170 |
40 |
|
125 |
400 |
245 |
210 |
185 |
22 |
8-18 |
201 |
56 |
|
150 |
480 |
280 |
240 |
210 |
24 |
8-23 |
238 |
90 |
|
2.5MPa |
15 |
130 |
95 |
65 |
45 |
16 |
4-14 |
60 |
4 |
凸面法兰
25 |
20 |
150 |
105 |
75 |
55 |
16 |
4-14 |
64 |
5 |
25 |
160 |
115 |
85 |
65 |
16 |
4-14 |
68 |
6 |
|
32 |
180 |
135 |
100 |
78 |
18 |
4-18 |
79 |
9 |
|
40 |
200 |
145 |
110 |
85 |
18 |
4-18 |
98 |
12 |
|
50 |
230 |
160 |
125 |
100 |
20 |
4-18 |
110 |
16 |
|
65 |
290 |
180 |
145 |
120 |
22 |
8-18 |
160 |
24 |
|
80 |
310 |
195 |
160 |
135 |
22 |
8-18 |
170 |
31 |
|
100 |
350 |
230 |
190 |
160 |
24 |
8-23 |
195 |
45 |
|
125 |
400 |
270 |
220 |
188 |
28 |
8-25 |
225 |
68 |
|
150 |
480 |
300 |
250 |
210 |
30 |
8-25 |
255 |
100 |
|
4.0MPa |
DN |
L |
D |
D1 |
D2 |
b |
n-d |
H |
重量 |
凹凸法兰
40 |
15 |
130 |
95 |
65 |
40 |
16 |
4-14 |
100 |
4 |
20 |
150 |
105 |
75 |
51 |
16 |
4-14 |
105 |
5 |
|
25 |
160 |
115 |
85 |
58 |
16 |
4-14 |
120 |
6 |
|
32 |
180 |
135 |
100 |
66 |
18 |
4-18 |
130 |
9 |
|
40 |
200 |
145 |
110 |
76 |
18 |
4-18 |
135 |
12 |
|
50 |
230 |
160 |
125 |
88 |
20 |
4-18 |
149 |
15 |
|
65 |
290 |
180 |
145 |
110 |
22 |
8-18 |
164 |
18 |
|
80 |
310 |
195 |
160 |
121 |
22 |
8-18 |
169 |
25 |
|
100 |
350 |
230 |
190 |
150 |
24 |
8-23 |
194 |
35 |
|
125 |
400 |
270 |
220 |
176 |
28 |
8-25 |
225 |
65 |
|
150 |
480 |
300 |
250 |
204 |
30 |
8-25 |
255 |
100 |
|
|
15 |
210 |
105 |
75 |
40 |
18 |
4-14 |
100 |
7 |
凹凸法兰
64 |
20 |
230 |
125 |
90 |
51 |
20 |
4-18 |
110 |
11 |
25 |
230 |
135 |
100 |
58 |
22 |
4-18 |
125 |
13 |
|
32 |
260 |
150 |
110 |
66 |
24 |
4-23 |
152 |
14 |
|
40 |
260 |
165 |
125 |
76 |
24 |
4-23 |
168 |
20 |
|
50 |
300 |
175 |
135 |
88 |
26 |
4-23 |
170 |
23 |
|
65 |
340 |
200 |
160 |
110 |
28 |
823 |
188 |
37 |
|
80 |
380 |
210 |
170 |
121 |
30 |
8-23 |
205 |
46 |
|
100 |
430 |
250 |
200 |
150 |
32 |
8-25 |
230 |
68 |
|
125 |
500 |
295 |
240 |
176 |
36 |
8-30 |
245 |
93 |
|
150 |
550 |
340 |
280 |
204 |
38 |
8-34 |
265 |
120 |
|
|
15 |
210 |
105 |
75 |
40 |
20 |
4-14 |
100 |
7 |
凹凸法兰
100 |
20 |
230 |
125 |
90 |
51 |
22 |
4-18 |
110 |
11 |
25 |
230 |
135 |
100 |
58 |
24 |
4-18 |
125 |
13 |
|
32 |
260 |
150 |
110 |
66 |
24 |
4-23 |
140 |
14 |
|
40 |
260 |
165 |
125 |
76 |
26 |
4-23 |
168 |
25 |
|
50 |
300 |
195 |
145 |
88 |
28 |
4-25 |
170 |
28 |
|
65 |
340 |
200 |
170 |
110 |
32 |
8-25 |
188 |
42 |
|
80 |
380 |
230 |
180 |
121 |
34 |
8-25 |
205 |
65 |
|
100 |
430 |
265 |
210 |
150 |
38 |
8-30 |
230 |
95 |
|
125 |
500 |
310 |
250 |
176 |
42 |
8-34 |
245 |
115 |
|
150 |
550 |
350 |
290 |
204 |
46 |
12-34 |
265 |
142 |
类型 |
设计与制造 |
结构长度 |
法兰尺寸 |
压力温度 |
试验-检验 |
旋启式止回阀 |
GB12236 |
GB12221 |
GB9113 |
GB9131 |
GB/T13927 |
升降式止回阀 |
GB12235 |