Conbraco 37LF-201-01 Valve

The Conbraco 37LF-201-01 is a lead-free 1/2" vacuum relief valve engineered for heavy-duty commercial and residential water heating systems. This model is the direct replacement for 37-201-01, providing a seamless retrofit into existing piping layouts. Designed to automatically admit air into the supply system, it effectively prevents vacuum conditions that can lead to tank collapse or siphoning. It features a high 15 CFM venting capacity and is rated for a maximum pressure of 200 PSI at water temperatures up to 250??F. The all-bronze body construction ensures durability in high-demand HVACR environments. As a lead-free relief valve complying with low-lead mandates, it is ideal for potable water service in plumbing systems. Integrating this vacuum breaker into your water heater or tank prevents back-siphonage and potential equipment failure, maintaining system integrity under fluctuating pressure conditions.

• Direct Retrofit Compatibility: Engineered as a drop-in replacement for the legacy 37-201-01 model.
• Enhanced Safety: High 15 CFM capacity prevents negative pressure build-up and tank implosion.
• Rugged Construction: Bronze body and stainless steel springs provide reliability in 200 PSI wet-heat applications.
• Lead-Free Compliance: Safe for all potable water configurations and commercial water heater installs.
• Low Maintenance Design: Simple mechanical operation with a durable seat ensures longevity in high-temperature service.

Is the 37LF-201-01 compatible with older 37-201-01 installations?
Yes, this is the direct manufacturer replacement and uses the same 1/2" NPT connection and footprint.

What is the maximum operating temperature for this vacuum relief valve?
This valve is rated for continuous service in water systems up to 250??F (121??C).

Does this valve prevent backflow?
While it prevents back-siphonage caused by vacuums, it is specifically a relief valve designed to vent air and should be used alongside dedicated backflow preventers where code requires.

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.