Tips to Prevent the Check Valve Failure

 

Today, industries that use piping for the transportation of fluids depend on check valves, also known as no-return valves. This type of device allows the flow of liquid in only one direction and prevents the reverse flow. Moreover, the opening and closing of these valves depend on the hydraulic pressure. In this article, we are going to talk about common problems with these units and the tips you can use to prevent them TGV VALVE.

In most cases, these units are used in chemical feed pumps, HVAC systems, water lines, condensate lines and steam lines just to name a few. In all of these situations, this component plays a critical role as the reverse flow of a liquid can cause significant damage to the equipment. So, you may want to check the symptoms for early detection of any possible problem with the device.

Common Check Valve Problems

Water hammer

Water hammer refers to a high-pressure shock wave generated due to the water changing the direction all of a sudden. Generally, this happens when the downstream flow make the check valve close all of a sudden. In this case, the valve can get damaged.

Reverse flow

Usually, reverse flow happens when the unit allows water to go back to the upstream direction. This can be damaging to the equipment like discharge pumps. The reverse flow to the pump can make the impeller spin in the reverse direction, which may cause a lot of damage to the pump.

Improper installation

Just like with any type of mechanical equipment, improper assembly, maintenance, or installation of the units can cause a lot of damage to the equipment. During the process of installation, the unit has to be in the right direction. Apart from this, it is important to understand the difference between the operations of different types of valves.

It is also important to consider the flow capacity, valve installation location, and the direction of the unit.

Debris in the pipeline

If there is a lot of debris in the pipeline, it can block the check valve. As a result, the valve will be unable to open or close. Apart from this, debris can also damage the inside mechanism. As a result, the components of the valve may become dislodged.

Other causes of check valve failure include worn seat seals and elastomers. Besides, excessive temperatures may also cause failure.

See More: http://www.gulf-valve.com/