Vertical Check Valve
The oxygen specific shut-off valve is made of high-quality silicon brass or stainless steel casting, which has the advantages of high mechanical strength, wear resistance, and good safety. Used on oxygen pipelines, it has effective explosion-proof and flame-retardant properties, eliminating unsafe factors on oxygen pipelines.
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Keyword: Vertical Check Valve
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Vertical Check Valve: Applications and Features;
Zhejiang Kewo Valve Co., Ltd.'s vertical check valves are rigorously designed and manufactured according to the GB12235 standard. The valve disc moves vertically along a central guide, while the bushing is crafted from a special material that offers excellent wear resistance and a low coefficient of friction, ensuring smooth, reliable operation and superior sealing performance. These products are widely used in pipelines across various industrial applications, including petroleum, chemical, pharmaceutical, and power industries.
Main performance specifications for vertical check valves;
|
Model |
Nominal |
Test pressure |
Operating Temperature (°C) |
||
| Strength |
Sealing |
Low-pressure sealing |
|||
| H42H-16 |
1.6 |
2.4 |
1.8 |
0.6 |
≤200 |
| H42H-25 |
2.5 |
3.8 |
2.8 |
0.6 |
≤200 |
| H42H-40 |
4.0 |
6.0 |
4.4 |
0.6 |
≤200 |
Vertical check valve execution standard;
Design and Manufacturing: GB/T12235
Structural length: GB/T12221
Flange Connection: JB/T79-1994 HG/T20592
Testing and Inspection: JB/T9092-1999 GB/T26480
Vertical check valves—main connection and overall dimensions
| Model |
Nominal Diameter DN |
Dimensions (mm) |
||||||
| L |
D |
D1 |
D2 |
H |
b |
Z-Φd |
||
|
H42H-16 |
15 |
130 |
95 |
65 |
45 |
77 |
14 |
4-14 |
| 20 |
150 |
105 |
75 |
55 |
77 |
14 |
4-14 |
|
| 25 |
160 |
115 |
85 |
65 |
80 |
16 |
4-14 |
|
| 32 |
180 |
135 |
100 |
78 |
85 |
16 |
4-18 |
|
| 40 |
200 |
145 |
110 |
85 |
95 |
16 |
4-18 |
|
| 50 |
230 |
160 |
125 |
100 |
105 |
16 |
4-18 |
|
| 65 |
290 |
180 |
145 |
120 |
120 |
18 |
4-18 |
|
| 80 |
310 |
195 |
160 |
135 |
130 |
20 |
8-18 |
|
| 100 |
350 |
215 |
180 |
155 |
140 |
20 |
8-18 |
|
| 125 |
400 |
245 |
210 |
185 |
155 |
22 |
8-18 |
|
| 150 |
480 |
280 |
240 |
210 |
180 |
24 |
8-23 |
|
| 200 |
600 |
335 |
295 |
265 |
215 |
26 |
12-23 |
|
|
H42H-25 |
15 |
130 |
95 |
65 |
45 |
77 |
16 |
4-14 |
| 20 |
150 |
105 |
75 |
55 |
80 |
16 |
4-14 |
|
| 25 |
160 |
115 |
85 |
65 |
85 |
16 |
4-14 |
|
| 32 |
180 |
135 |
100 |
78 |
95 |
18 |
8-18 |
|
| 40 |
200 |
145 |
110 |
85 |
105 |
18 |
8-18 |
|
| 50 |
230 |
160 |
125 |
100 |
120 |
20 |
8-18 |
|
| 65 |
290 |
180 |
145 |
120 |
130 |
212 |
8-18 |
|
| 80 |
310 |
195 |
160 |
135 |
140 |
22 |
8-18 |
|
| 100 |
350 |
230 |
190 |
160 |
155 |
24 |
8-23 |
|
| 125 |
400 |
270 |
220 |
188 |
180 |
28 |
8-25 |
|
| 150 |
480 |
300 |
250 |
218 |
215 |
30 |
8-25 |
|
| 200 |
600 |
360 |
310 |
278 |
973 |
34 |
12-25 |
|
The oxygen specific shut-off valve is made of high-quality silicon brass or stainless steel casting, which has the advantages of high mechanical strength, wear resistance, and good safety. Used on oxygen pipelines, it has effective explosion-proof and flame-retardant properties, eliminating unsafe factors on oxygen pipelines.
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