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BACKFLOW
PREVENTION
TYPE OF DEVICE SERIES
BACK
SIPHONAGE
BACK
PRESSURE
CONTINUOUS
PRESSURE
AESTHETIC
HAZARD
HEALTH
HAZARD
DOUBLE CHECK VALVE
DCLF 4A
DCLF 4An
DCLF 4SG, DCLF 4S
ü ü ü ü
DOUBLE CHECK
DETECTOR ASSEMBLY
DCDALF 4A
DCDALF 4An
DCDA 4SG, DCDA 4S
ü ü ü ü
REDUCED PRESSURE
PRINCIPLE
RPLF 4A
ü ü ü ü ü
REDUCED PRESSURE
PRINCIPLE (n & V Flow)
RPLF 4An
ü ü ü ü ü
REDUCED PRESSURE
PRINCIPLE (Stainless Steel)
RP 40-S
ü ü ü ü ü
REDUCED PRESSURE
DETECTOR ASSEMBLY
RPDALF 4A
RPDALF 4An
ü ü ü ü ü
ATMOSPHERIC
VACUUM BREAKER
AVB1, AVB1LF
AVB2
ü ü ü
PRESSURE
VACUUM BREAKER
PVB 4A, PVBLF 4A
ü ü ü ü
SPILL RESISTANT PRESSURE
VACUUM BREAKER
SVB 4A, SVBLF 4A
ü ü ü ü
DUAL CHECK
DUC 4ALF
DUC 4FP
DUC40, DUCLF40
ü ü ü ü
DUAL CHECK W/ ATMOS.
PORT
DCAP 4A, DCAP 4ALF
ü ü ü ü
CARBONATED BEVERAGE
BACKFLOW PREVENTER
CBBP
ü ü ü ü
HOSE CONNECTION
VACUUM BREAKER
HBV2, HBV2LF
ü ü
*
ü ü
ANTI FREEZE HOSE CONN.
VACUUM BREAKER
HBVAF2, HBVAF2LF
ü ü
*
ü ü
HOSE CONNECTION
BACKFLOW PREVENTER
HBDUC, HBDUCLF
ü ü
*
ü ü
LAB FAUCET
VACUUM BREAKER
LFDUCLF
ü ü ü
* Limited back pressure to 10’ head
** Check with local authorities having jurisdiction
APPLICATION
**Apollo Recommended
SELECTION GUIDE
See BFCA9000 for additional information including weights, dimensions and pressure loss curves.
Visit conbra.co/backflowapprovals for up-to-date agency approvals.