How do you measure a check valve?
In order to properly size a check valve, you must determine the minimum velocity required to fully lift the disc. Then find the mean velocity of flow in the piping system and ensure it is greater than or equal to the minimum required velocity.
How much does a 12 inch check valve weight?
Other Valve weights
|Pressure Class 600|
What is a standard check valve?
Check valves are also called non return valve, reflux valve, retention valve or one-way valve. This type of industrial valve is automatically opened and closed by the force generated by the flow of the medium itself in the pipeline, which can categorize as an automatic valve.
Where should check valves be fitted?
Check valves are used in many different applications. For example they are often placed on the outlet side of a pump, to protect the pump from backflow. Centrifugal pumps, the most common type of water pumps, are not self-priming, and therefore check valves are essential for keeping water in the pipes.
What are the symptoms of a bad check valve?
Exhaust fume odor One of the first and most common symptoms of a bad or failing check valve is an exhaust fume odor.
What is a check valve and how it works?
Types. Swing (tilting-disc) check valves consist of a clapper with a disc that is convex on the upstream inlet side and flat on the downstream outlet side.
What is the function of a check valve?
– Stopping and starting fluid flow – Varying (throttling) the amount of fluid flow – Controlling the direction of fluid flow – Regulating downstream system or process pressure – Relieving component or piping over pressure
How to install swing check valves?
verify compatibility with the Swing Check Valve and associated equipment. Prior to installing the valve, thoroughly flush the water supply piping to verify that no foreign matter is present. The Swing Check Valve may be installed in vertical position with direction of flow up, or in horizontal position with the access cover up.