Hersey FDC Model was manufactured starting in 1975 and discontinued in 2004. Some parts remain but mostly rubber repair kits.

This series is currently Obsolete! Parts Still Available!

Hersey Model FDC Large DIameter Backflow Assembly was discontinued in 2004, the Hersey Model No. 2 from 1975 and discontinued in 2004 and the Hersey DDC II Model was produced from 1975 and was discontinued in 2004. The model FDC 3/4" is used on the bypass. In 1988 the end to end dimension of the main body on the 3" and 4" sizes were changed. The earlier model of the 3" was 5/8" shorter. The earlier model of the 4" was 1" shorter.

This series is currently Obsolete! Parts Still Available!

Specification: The BEECO Friendly Double Check Backflow Preventer Valve is designed to stop the reverse of flow of a liquid into a potable water system. The proper installation of a backflow preventer must be done by a certified expert under local codes and guidelines to assure the protection of the drinking water system. The Valve shall be certified to ASSE 1015, CSA B64.5 and IAPMO listed.

Specification: The BEECO Friendly Double Check Backflow Preventer Valve is designed to stop the reverse of flow of a liquid into a potable water system. The proper installation of a backflow preventer must be done by a certified expert under local codes and guidelines to assure the protection of the drinking water system. The Valve shall be certified to ASSE 1015, CSA B64.5 and IAPMO listed.