BASIC TYPES OF BACKFLOW PREVENTION DEVICES

 

avp.gif ATMOSPHERIC VACUUM BREAKER
Applications: Irrigation systems, commercial dishwasher and laundry equipment, chemical tanks and laboratory sinks (backsiphonage only, nonpressurized connections.)


DOUBLE CHECK ASSEMBLIES
Applications: All non-health hazard (nontoxic) connections including: fire sprinkler and standpipe systems, irrigation systems, premise isolation.
 


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PRESSURE VACUUM BREAKERS

Applications: Irrigation and commercial/industrial piping systems (backsiphonage only, pressurized connections)

DUAL CHECK VALVE ASSEMBLIES

Applications: Residential service connections and nontoxic point of use protection.
 
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AIR GAP

Applications: It's Applications range from extremely hazardous installations to a common household sink or wash basin. It provides an adequate air gap between the contaminant and the water supply.