800-660-2205
Local Phone 818-909-7880
805-497-2415
Address 7840 Burnet Avenue
Van Nuys, CA 91405

Common Backflow Preventers

Atmospheric Vacuum Breakers (AVB)

A device containing a float-check, a check seat and an air inlet port. For both low and high hazard applications, AVBs are intended for use in a non- continuous pressure application (no more than 12 hours of pressure per 24 hour period), in a back- siphonage condition only.

ATMOSPHERIC VACCUM BREAKER
PRESSURE VACUUM BREAKER
Pressure Vacuum Breakers (PVB)

PVB assemblies are intended for use in both continuous and non-continuous pressure applications, in a back-siphonage condition only. A PVB is intended to provide protection in low hazard and high hazard situations.

Double Check Valve Assembly (DC)

This assembly is intended for use in both continuous and non-continuous pressure applications., in both back-siphonage and backpressure conditions. A DC is intended to provide protection in low hazard situations.

DOUBLE CHECK
Double Check Detector Assembly
Double Check Detector Assembly (DCDA)

DCDAs are for use in both continuous and non- continuous pressure applications, in back-siphonage and backpressure conditions. The DCDA is intended to provide protection in low hazard situations only.

Dual Check Valve Assembly

Dual Checks are designed for use in low hazard applications where a fully approved, testable backflow preventer is not required. Check with the local authority having jurisdiction for acceptance.

Double Check Detector Assembly
REDUCED PRESSURE
Reduced Pressure Principle Assembly (RP)

RPs are used for continuous and non-continuous pressure applications, in back-siphonage and backpressure conditions. The RP is intended to provide protection in low and high hazard situations.

Reduced Pressure Principle Detector Assembly (RPDA)

RPDAs are intended for use in continuous and non- continuous pressure installations, in back-siphonage and backpressure conditions. The RPDA is intended to provide protection in low and high hazard situations.

RPDA
BAROMETRIC LOOP
Barometric Loop

Typically built 35+ feet high, barometric loops protect against back-siphonage, based upon the principle that a water column, at sea level pressure, will not rise above 33.9 feet.

Air Gap

Air gaps are primarily used at end of the line service where reservoirs or storage tanks are desired.

airgap