Understanding the wear free valve
Published: 9 February 2017 - Sarah Mead
A typical pinch valve has the ability to control, regulate, block, and measure the media flowing through the system, thanks to its simple design and body construction. These wear free valves are used for a wide range of applications, from domestic household to complex operations involving the flow of different materials. However, in industrial applications, it is essential to maintain a suitable flow rate to ensure the efficiency and physical condition of the wear free valve and its active component, i.e. the rubber sleeve.
Why wear free valves are needed?
There are some situations where fluid needs to be passed with high pressure, and this is where wear free valves come into play. The supply of fluid or air into the housing of an air operated pinch wear free valve compresses its sleeve component, which creates a situation of high rebound elasticity and enables the operator to control the media flow. Depending on the required flow rate, the supply is obstructed accordingly, allowing the casing to relieve pressure and the sleeve to open the flow path by its elasticity, and resuming the process.
When a process requires lower or higher than normal pressure reductions, such as in controlling the flow in a pump, it is achieved by altering the design of the pinch valve to make it suitable for handling specific requirements of specialized applications. Due to reduced cycle periods, a loss of energy is also minimised, rendering to its linear flow characteristic. This results in a low blockage of the flow path and better control of the operation, which also reduces the operational cost.
These wear free valves are particularly suitable for applications where slurries are transferred between locations. In such cases, pinch valves are preferred over other types of valves because of its capability to give better control over the flowing media.
For more information please visit the simple function of a wear free valve.