Conbraco 38-204-01 Vacuum Breaker

The Conbraco 38-204-01 Vacuum Breaker is a professional-grade 3/4 inch NPT atmospheric type vacuum breaker designed to prevent the back-siphonage of non-potable liquids into the primary water supply. Engineered by Apollo Valves, this 38-200 series device features a rugged forged brass body and a rough brass finish, ensuring high-level durability for demanding contractor installations. It utilizes a heat-resistant silicone seat disc and a polypropylene float, maintaining reliable performance at temperatures up to 212°F and working pressures up to 125 psig. This backflow preventer is critical for irrigation systems, laboratory equipment, or washdown stations where intermittent flow is present. Note that this atmospheric vacuum breaker is not rated for continuous pressure applications and must be installed at least 6 inches above all downstream piping. With its compact footprint and ASSE 1001 compliance, the Apollo 38-204-01 is the standard choice for technicians seeking a serviceable, high-performance solution for cross-connection control.

• Industrial Durability: The forged brass construction provides superior strength and corrosion resistance compared to standard cast alternatives.
• High Temperature Resilience: Equipped with a silicone seat disc rated for hot water service up to 212°F, ideal for diverse commercial applications.
• Maintenance Efficiency: Designed for easy field service with accessible internal components, minimizing downtime for the contractor.
• Reliable Siphonage Protection: Effectively breaks vacuum conditions to prevent contaminated water from entering the potable system.
• Standard Compliance: Meets ASSE 1001 and CSA B64.1.1 requirements for atmospheric vacuum breakers.

Can this vacuum breaker be used under continuous pressure?
No, the Conbraco 38-204-01 is an atmospheric type vacuum breaker. It is not designed for continuous pressure and should not be pressurized for more than 12 hours in any 24-hour period.

What is the proper installation height for this valve?
For proper operation and to satisfy plumbing codes, this unit must be installed a minimum of 6 inches above the highest point of downstream piping or the flood rim of the fixture it serves.

What causes an atmospheric vacuum breaker to leak from the top?
Leaking from the canopy or vent usually indicates debris or lime scale buildup on the float disc or silicone seat, preventing a tight seal during flow conditions. Cleaning the internal soft goods typically resolves the issue.

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Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.