Wafer Check Valve are used in several different devices, and they are advantageous for several reasons. For example, they stop flooding or overflowing in sump pumps and water heaters. They protect equipment in control valves, strainers and flowmeters. They also save power, because the backwards-flowing water would use up electricity even when the device was off.
Since they are used in different types of industries they are manufactured in carbon steel, alloy steel or stainless steel. Depend on size Check valves are necessary pieces in the piping. Although Check valves are designed on the basic API 6D standard but, for different industries they are further customized according to API 608,609,602, or 600 criteria.
The most important criteria to be considered in installing a check Wafer Butterfly Valve in a piping is the Cracking pressure. This is the pressure that opens the valves and thus choosing the right fit check valve for the piping is crucial. Check valves are used where there is need to:
- Prevent the reverse flow of contents of fluids or gases present in the pipe system
- Shield the other components of pipeline from the damage by blocking any back flow.
- Thwart the flow because of gravity or pressure variations
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