| Model： | ||
| Standard or Nonstandard： | Standard |
|
| Pressure： | HighPressure |
|
| Material： | forgedsteel |
|
| Media： | Water |
| PriceRange： | ||
| Structure： | Check |
|
| Power： | Hydraulic |
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The check valve will be found in the group defined as valves designed to control the direction of flow. Check valves differ considerably in their construction and operation from the other groups of valves, designed either to stop the flow entirely or throttle the flow to a desired degree. Check valves are entirely automatic in their operation, and are activated internally by the flow of fluid or gases which they regulate. Actually the various check valves have developed to occupy a wide range of applications.
One of the basic designs of the check valve is called the vertical lift check valve. The vertical lift check valve is designed to protect pumps against reverse flow of the pumped fluid. If the pressure of the fluid in the piping system after the pump exceeds the value of the pressure generated by the pump and the fluid starts flowing back, the disk closes the check valve automatically. As a result, the vertical lift check valves are widely used for the media such as the water except potable water, non-aggressive fluids, crude oil and petroleum products, gaseous fuels, inorganic and organic media and so on.
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