Sock welded check valve is used to avoid back flow of medium in pipeline. It depends on flow of medium to open or close. Internal screw check valve allows medium to flow in only one direction.
Standards
Design: MSSP-118, ASME B16.34
Testing & inspection: API 598
Sock welded ends: ANSI B16.11
Identification: MSS-SP-25
Parameter
|
Model |
H61H |
H61Y |
|
|
Applicable Temperature(℃) |
≤425 |
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|
Applicable Medium |
Water, steam, oil |
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|
Materials |
Body/bonnet |
Forged steel |
|
|
Disc |
Stainless steel |
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|
Seal face |
Stainless steel |
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|
Gasket |
Flexible graphite |
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Dimensions
|
Nominal Diameter DN |
Dimensions(mm) |
Weight(kg) |
|||||
|
mm |
in |
L |
l |
D |
D1 |
H |
|
|
15 |
1/2 |
80 |
10 |
34 |
21.8 |
47.5 |
1.25 |
|
20 |
3/4 |
90 |
13 |
40 |
27.1 |
52.5 |
1.6 |
|
25 |
1 |
100 |
13 |
50 |
33.8 |
62.5 |
2.4 |
|
32 |
1 1/4 |
120 |
13 |
58 |
42.6 |
78 |
3.75 |
|
40 |
1 1/4 |
140 |
13 |
66 |
48.7 |
92 |
5.5 |
|
50 |
2 |
|
|
|
|
|
|
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