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Potable Water Application Use
Pressure Vacuum Breaker

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.

Bronze Body

NPT Connection