How to Check Mechanism and Benefits of Check Valve Castings

Valves that are known as non-return valves, one way valves, and clack valves are all the same type of valves. As defined by the check valves casting, these are all the different names of the same valve, popularly known as the check valve.

Operation of check valves

Check valve is completely different from other types of valves. Their major ability is passing the fluid in any one direction and in that direction only. This function is greatly helpful for a number of applications, especially when it concerns the prevention of overflow.

It is important to understand how these valves function first and foremost. Check valves operate usually on a two port system. It has an opening to allow gas to be drawn to the first port. This gas is then transferred with the help of a mechanism that separates the two different types of port.

These ports help in drawing the water from the first port to the second port. This water is then pushed out with an opening, blocking the fluids from reentering the first port.

Different kinds of Check Valves

Now, let us briefly know about the different types of check valves available in the market. There are many types of check valves that are common in the industry: swing check valves, disc check valves, split disc check valve, diaphragm check valve, and wafer check valve.

Swing check valves are common valves, used in toilet tanks present in houses and so on.  There are no balls controlling the flow. This valve uses small door on hinges whichis forced opened when the water or other fluidsare drawn. It closes when there is enough water, thus preventing the drainage of water from entrance of the valve.

Disk check valves are a bit more complex valves that have a disc which is mounted on a spring for functionality. The pressure forces the inlets to open up, as it stretches the spring. When the water flow stops, the compression of the spring is great. This causes the disc to return to the initial position.

Split disk check valves or dual plate check valves have a door split in the middle. This door regulates the flow of the liquid in one direction only. The fluid causes a pressure that enables the hinges to open.

Diaphragm check valves have flexing rubber mechanism. This helps in the regulation of the flow of liquids. It helps in activating a certain pressure on the upstream side of the valve, pushing out the fluid.

Wafer check valves can usually work with swing, disk check, split or any other mechanism. It is usually smaller in size and can be fitted between flanges.

Benefits of Check Valves

There are several benefits to check valves. A few of the more pronounced ones are:

• Protection of pumps and compressor equipment from damage and flows in the wrong directions.
• Reduction

  

  of time taken and loss of production of liquid for unsuitable valves.
• Increase in the energy savings due to lower pressure.
• Prevention of water hammer in check valves.

Check valves in check valve casting are casted to have smaller footprint and reduces the possibility of sudden failure in valves, making them cheap and effective for longer runs.