QF517 Check Valve
Check valves are valves that control the flow of air in one direction only, and not in the reverse direction. Mostly combined with throttle valves to control the speed of movement of the actuators, they are also used to prevent the phenomenon of backflow of air in the circuit.
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Check Valve Series
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QF517 Check Valve
Detail
1. Characteristic:
Check valves are valves that control the flow of air in one direction only, and not in the reverse direction. Mostly combined with throttle valves to control the speed of movement of the actuators, they are also used to prevent the phenomenon of backflow of air in the circuit.
2. Symbol:
3. Outline and installation dimensions:
|
Name |
Model Specification |
Main external materials |
H |
B |
S |
| Check Valve |
QF517 |
Cast Iron |
166 |
127 |
ZG1-1/4” |
| Check Valve |
Qf539 |
Cast Iron |
167 |
155 |
G2” |
4.Technical Specification:
|
Model |
QF539 |
|
Nominal diameter（mm） |
50 |
|
Effective cross-sectional area（mm²） |
650 |
|
Maximum working pressure MPa |
1.0 |
|
Environment and medium temperature ℃ |
5~60 |
|
Durability (10,000 times) |
＞200 |
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KA Series Check Valves
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