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Backflow Device Backflow Preventer Valve Air Gap Backflow Prevention Device

To prevent backflow in your plumbing system we can utilize a simple and effective strategy of creating an air gap. This backflow preventer is an open space (often a vertical area separating the flood level and water outlet) that occurs between devices that connect a plumbing system, such as a faucet or valve, to a location where water is likely to pool.

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Backflow prevention Device

In situations where an air gap is not the right alternative, we will suggest a backflow prevention device. A backflow preventer valve can be installed throughout the plumbing system anywhere that has a high risk of potentially contaminating the water supply.


Sheehan serves the greater Wayne, PA and Bryn Mawr, PA areas.

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air gap

backflow preventer valve