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Backflow Reference Manual - Conbraco/Apollo


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40-200 / RP-40 / RP-40LF

Sizes

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

Description

This is a reduced pressure assembly. Production began approximately 1989. The 1/4"-2" sizes are a bronze bodied plastic poppet style check. In 2010 the RP40LF model was introduced which used lead free bronze. In 1994 a stainless steel body option became available in 1/4"-1". Check covers are screwed into the body in sizes 1/4"-2". The check and relief valve seats are cast in the body and are not replaceable. From 1989-1994 in the 1/4"-2" sizes replaceable seats were available as an option. The replaceable seat version has an "A" in the second to last digit in the model number: e.g. 40-208-A2. In 1994 replaceable seats became the standard. The rubber repair kits are different between the replaceable and non-replaceable seat version. A seat removal tool is needed to change the seats. The check springs are not contained on these sizes. The relief valve spring is contained when the cover is removed and has an internal sensing line. The 2 1/2"-10" sizes utilize a ductile iron body that is fused epoxy coated. Most hardware internal check parts are made of bronze. The 2 1/2"-4" sizes use a single check body while the 6"-10" have a split 2 piece check body design. Check and relief valve seats are replaceable. A seat removal tool is needed to change the seats. All springs are contained upon removal of check and relief covers. This unit utilizes an internal relief valve sensing line. The relief valve is able to be removed from the check body. Note each size has a different model number, but they are all in the 40-200 series.

Details

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.