Danfoss 31622111LF Valve

The Danfoss 31622111LF is a high-performance ESBE VTA series thermostatic mixing valve engineered for precision temperature regulation in domestic hot water and hydronic heating systems. As a lead-free solution, this 1" NPT valve is crucial for maintaining a consistent outlet temperature between 85-120°F (29-49°C), effectively preventing fluctuations that lead to scalding or system inefficiencies. With a 4.1 Cv flow capacity and a maximum operating pressure of 150 psi, it provides the reliability needed for point-of-source applications and radiant floor heating. The internal thermostatic element automatically adjusts the mix of hot and cold water to meet your specified setpoint, even during varying inlet conditions. Built with a lead-free brass body to comply with NSF/ANSI 372 standards, the Danfoss 31622111LF mixing valve is the go-to choice for contractors requiring a durable, low-maintenance component for legislative compliance. Its compact 1 inch FNPT connection ensures a streamlined install in tight mechanical rooms, while the snap-on cover protects against unauthorized tampering.

Key Benefits:

• Precise Temperature Control: Delivers a stable output between 85-120°F, ideal for radiant heating and domestic water safety.
• High Flow Capacity: A 4.1 Cv rating supports higher demand applications without significant pressure drops.
• Lead-Free Brass Construction: Fully compliant with lead-free legislation for potable water installations.
• Scald Protection: Features a rapid fail-safe function that shuts off hot water flow if the cold water supply fails.
• Tamper-Resistant Design: Includes a protective cap to secure temperature settings after final commissioning.

Common Questions:

What is the minimum flow rate for the 1" Danfoss 31622111LF?
For accurate thermostatic regulation, the 1" NPT model requires a minimum flow rate of 2.0 GPM.

Can this valve be used in a solar water heating system?
Yes, the VTA series is well-suited for solar applications where high inlet temperatures (up to 194°F) require a reliable mixing valve to temper water down to safe usable levels.

Is the 31622111LF compatible with glycol?
This valve is compatible with closed-loop hydronic systems using up to a 50% glycol mixture.

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.