Thread check valve
Nominal diameter: NPS 1/2 "~3"
Applicable temperature: -20~120 ℃
Nominal pressure: PN 1.6MPa
Design and manufacturing: GB T-12237/ANSI B16.34
Connection size: GB T-9113.1/ASME B16.5 Class150
Structure length: GB T-12221/ASMW B16.1
Thread standard: BSPT/BSP/NPT/DIN/JIS/RC/G
Inspection and testing: GB T-13927/API598
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Product Overview
The function of a check valve is to prevent the backflow of medium in the pipeline. Check valves belong to the category of automatic valves, and the opening and closing parts open or close themselves by the force of the flowing medium. Check valves are only used on pipelines with unidirectional flow of media to prevent media backflow and prevent accidents.
Main connection dimensions
|
Size |
d |
L |
H |
|
1/2 '' |
15 |
70 |
44 |
|
3/4 '' |
20 |
80 |
53 |
|
1 '' |
25 |
90 |
58 |
|
1-1/4 '' |
32 |
105 |
62 |
|
1-1/2 '' |
40 |
120 |
73 |
|
2 '' |
50 |
140 |
78 |
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