Pressure Vacuum Breaker
One of the most common backflow preventers, use vacuum pressure breakers to stop the backsiphonage of wastewater, corrosive liquids, and other contaminants into the public water supply in the event of a water pressure drop. They have an internal spring-loaded check valve that allows these breakers to be used in systems that are under continuous pressure.
General Purpose
Lead-Free Brass Body — Chrome Finish
NPT Connection
Lead-Free Brass Body
NPT Connection
Brass Body — Chrome Finish
NPT Connection
Bronze Body — Rough Brass Finish
NPT Connection
Brass Body
MNPT Connection
NPT Connection
For Corrosive Environments
Install these breakers in heating and plumbing applications for excellent resistance to corrosion and chemicals.
Forged Brass Body — Polished Chrome Finish
NPT Connection
Forged Brass Body — Chrome Finish
NPSM Connection
NPT Connection
Forged Brass Body — Rough Brass Finish
NPT Connection
For Ultrapure Liquids & Chemical Processing
Prevent vacuum from occurring in enclosed tanks, which can lead to unintended siphonage, potential collapse of storage containers, or filter and instrument damage with these breakers. They are constructed of durable plastic material that can withstand corrosion caused by ultrapure liquids and some chemicals.
PVC Body
NPT Connection
Polypropylene Body
NPT Connection
Hose Connection
Screw these devices directly onto a faucet where hoses are attached to reduce vacuum and prevent backsiphonage into the water supply. Designed for use in irrigation, swimming pools, laundry facilities, and other applications that use portable hoses.
Brass Body
FNPT Connection
GHT Connection
Dual Check
These vacuum breakers have 2 check valves with an atmospheric port in-between for added protection against contaminated backflow into the water supply. Connect to faucets in laboratory sinks and other applications with increased contamination risk.
Brass Body
NPT Connection
Freeze Resistant
Designed for extra protection against backsiphonage into the water supply, these dual check valves also feature a manual drain port to prevent freezing. Connect to faucets on outdoor service sinks, dispensers, and frost-proof hydrants.
Brass Body
NPT Connection
Spill Resistant
Use these vacuum breakers on indoor factory machines or chemical dispensers to protect the water supply from contamination due to backsiphonage and to prevent spillage, typically during startup operation.