Backflow Reference Manual - Cla Val

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2", 2 1/2", 3", 4", 6", 8", 10"


This valve is a reduced pressure assembly. The model RP is no longer in production and was produced from approximately 1958 to 1978. The 2 1/2"-10" size consists of two fused epoxy coated cast iron body check valves and a bronze body pressure differential relief valve. The 2" size had a bronze bodied check valve assembly. The model CDHS 14 relief valve section is the one used in the RP series. This relief valve can be detached from the check body. The relief valve utilizes two external sensing lines. The relief valve spring was not contained when the RV cover was removed. The relief valve rubber repair parts were discontinued in 1993. Check and relief valve seats are replaceable and a seat removal tool is needed to change the seats. Most internal check and relief hardware parts are made of bronze. The RP series utilizes the 3081 toggle lever check design for the check valves. Check springs were not contained when the cover was removed.


Common repair parts are a very small subset of the 10,000 plus items BAVCO stocks. Please feel free to contact us direct at 800-458-3492 for pricing on items not listed or backflow prevention devices.