Lined Check Valve Implementation

A lined check valve can be utilized in several situations that will benefit from a fixture that helps to control flow direction. In a piping system, it is often essential that liquids flowing through that system only travel in the appropriate direction. A lined check valve operates in a manner that allows liquids to flow through in one direction, but after the liquids have passed through the valve closes and does not let them return to the place from whence they came.

A lined check valve contains two openings, and due to this design they are classified as a two-port valve. One opening allows for a liquid to enter, and the other serves as the exit for the liquids. The opening for the liquid to enter is controlled by a spring. When there is enough pressure to move the spring, it opens the lined check valve and allows the liquid to pass through. Once there is no longer pressure from liquid attempting to travel in the appropriate direction, the spring activates the valve closure and prevents any of the liquid that has passed through from reversing direction. A lined check valve could be especially useful in situations where gravity might encourage backflow.

The point at which the spring is activated and opens the valve is referred to as the check valve's cracking pressure. A lined check valve can be specially ordered, and they are available in all sorts of types, sizes, materials, and with different cracking pressures. A company needs to consider the flow pressure that is generally needed for production when they are ordering a lined check valve with a certain cracking pressure.

The bodies of check valves are typically composed of either metal or plastic. Companies should be careful to select a material that will not negatively react with the substances flowing through their systems. A lined check valve often comes in contact with the liquid flowing through pipes, and for that reason sometimes plastic materials are preferred, in order to avoid any rust build-up and the cleaning or maintenance that would be associated with that rust. The more efficiently a lined check valve is operating at all times, the smoother overall production operations can run. If a lined check valve gets clogged or stops working due to corrosion or some other type of build-up, the factory production will have to be halted for cleaning or part replacement. Companies are in a much better position if they order a lined check valve from appropriate materials before installation occurs, because any sort of production loss for part maintenance could be devastating for output and profits.

In general, a lined check valve is a small and inexpensive part that offers a company a valuable service. As check valves are common in both household settings as well as large, industrial settings a lined check valve can vary in overall cost and size. To work most effectively, it simply needs to be sized to the pipes in the system, while materials and pressures are all kept in mind.