Complete Material Standards Manual - Gainesville Regional Utilities

Valve, Backflow Preventer, Reduced Pressure, Brnz
Material Item Approved for Use In:
Water System:
Wastewater System:
Reclaimed Water System:
Approved Manufacturers:
Manufacturer's Name: Model/Series #:
Conbraco Industries RP-4A
FEBCO 825Y
Material Description:
The reduced pressure backflow preventer shall
consist of two independently operating, spring
loaded, "Y" pattern check valves and one
hydraulically dependent differential relief
valve. The assembly shall automatically reduce
the pressure in the "zone" between the check
valves to at least 5 psi lower than inlet
pressure. Should the differential between the
upstream and the zone of the unit drop to 2 psi,
the differential relief valve shall open and
maintain the proper differential. Mainline valve
body and caps including relief valve body and
cover shall be bronze.
Application:
Maintenance of acceptable pressure in water
systems for prevention of backsiphonage and
contamination.
See Appendix B for Installation Instructions
Pictures are for Illustrative Purposes Only
GRU Stock Information:
VALVE, R.P. BACKFLOW PREVENTER
Stock Number Stock Description
000283452 3/4"
000283657 1"
000317551 1-1/2"
000339407 2"
'For GRU use only: An X indicates item is stockless
National Standards:
ANSI B1.20.1 - End Connections
ASSE 1013 - BFP Assembly
AWWA C511 - BFP Assembly
CSA B64.4 - BFP Assembly
See Appendix A for Full Description of Standards
Water, Wastewater and Reclaimed Water
Material Standards
V-32.01
6/10/2009