Conbraco 34ALF-214-BS Valve

The Conbraco 34ALF-214-BS Valve, specifically the Apollo MVA-LF 3/4" Solder Mixing Valve, is a high-performance thermostatic master mixing valve designed for ASSE 1017 point-of-source applications. Built with a lead-free bronze body (C89836), this valve ensures precise temperature control for both potable water and hydronic heating systems. It utilizes superior thermostatic element technology to maintain mixed water temperatures within a ±5°F tolerance, even under fluctuating supply conditions. For system protection, it features integral inlet strainers and check valves to prevent cross-flow and debris-related failures, while the instantaneous cold water failure shut-off prevents scalding by stopping hot water flow if the cold supply is lost.

Engineered for professional contractors, the 34ALF-214-BS supports a flow rate of 19 GPM at 30 psid and operates at pressures up to 150 psig. The internal shuttle is constructed from Noryl modified PPO for chemical resistance, paired with chloramine-resistant EPDM O-rings to extend service life in harsh water conditions. This 3/4" sweat connection model includes a temperature limit stop factory-set to prevent adjustment above 120°F (adjustable between 85°F and 120°F), making it an ideal solution for residential and commercial domestic hot water distribution where code compliance and safety are non-negotiable.

Key Benefits

• Precision Thermostatic Control: Maintains consistent discharge temperatures for superior safety and system efficiency.
• Lead-Free Reliability: Certified lead-free construction meets all safe drinking water act requirements for potable applications.
• Integrated Protection: Dual check valves and strainers come standard to protect the thermostatic element from piping particulates.
• Scald Mitigation: Built-in fail-safe mechanism automatically shuts down hot water flow if the cold water supply is interrupted.
• High Durability: Features a rugged bronze body and high-grade stainless steel springs for long-term industrial performance.

Common Questions

• Can this valve be used for radiant floor heating? Yes, the 34ALF series is suitable for hydronic and radiant heating applications, though standard models are optimized for ASSE 1017 potable distribution.
• What is the minimum flow rate required for accuracy? This valve requires a minimum flow of 0.5 GPM to maintain its rated temperature tolerance.
• Is this mixing valve field-serviceable? Yes, the internal cartridge and strainers can be accessed for maintenance or cleaning without removing the valve body from the piping.

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.