Mesh Screen Filters

Fine mesh screens are very delicate items. (i.e. The wires in a mesh screen are thinner then a human hair). They will do an excellent job for your customers, if properly installed.

To achieve good long life results of a mesh screen must be part of a properly engineered system, or installation.

Back flow through an inline filter mesh screen is the KILLER. It can destroy a screen in an instant. Back flow can happen in several ways:

1. Vacuum caused by pump shut off and loss of prime, (faulty foot valve).
2. Piping downstream of the filter going uphill.
3. A sudden closure of a butterfly or ball valve downstream causes a water hammer pressure shock wave backwards towards the filter.

To overcome these threats to a mesh screen we would suggest the following systems:

This ideal system will cover all three possible items mentions above.

Please note the placement of each component in the system. DO NOT rearrange their placement or you will nullify the desired results.

Remember mesh screens are painstakingly made to insure no gaps that allow particles to escape. Repair of a mesh screen to original condition is almost impossible. Lack of attention to a proper system installation will be very costly and aggravating for your customers.