Febco 765 PVB Poppet Replacement Assembly (1/2" - 3/4")
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Febco 765 Size: 1/2" - 3/4" This Poppet Replacement Assembly is designed to work with the FEBCO Series 765 Pressure Vacuum Breakers in sizes 1/2" - 3/4" which may have worn from years of service or damaged during periods of freezing weather.
The poppet assembly in a pressure vacuum breaker operates once the check valve opens and water travels past the check valve and causes the poppet to travel up an air inlet guide. The poppet will compress an air inlet loading (its not always a spring) which is designed to generate a load of at least 1 PSI. The air inlet is pressurized closed for the normal flow of water and is designed to open when the force from the air inlet (1.0 PSI Minimum) is greater than the water pressure in the area after the check valve.
Please see our Febco 765 Mantenance Manual at right for detailed installation instructions. If you original Febco 765 was damaged during periods of freezing weather, please also consult the Febco 765 Freeze Protection Instructions at right for detailed information on preventing damage to your Febco Backflow Preventer during periods of cold weather. |
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Febco 765 Maintenance Manual
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