The Danfoss AVTA two-way thermostatic valve is used for proportional control of the cooling medium flow depending on the set temperature on the sensor. The valve is self-acting, meaning it operates without the use of electricity or compressed air. It is used in both closed and waste cooling systems. It is suitable for water, air, oil, and inert gases. The valve closes slowly with a low level of pressure surges.

The valve is actively resistant to dirt with a design based on force compensation that prevents particles from entering the valve and dirt from adhering to its opening. However, if dirt does settle in the valve, the sensor simply detects the need for increased flow, and the valve opens more to allow increased water flow, which clears the dirt.

The sensor with a universal charge contains a mixture of liquid and gas, with the surface of the liquid (control point) always located inside the sensor. It can be mounted in a place cooler or warmer than the valve installation site.

Operational economy and efficiency with long valve life is provided by Danfoss quality.

Applications

• Distribution of water, gas, air, and oil
• Water distribution with antifreeze additive (≤ 40% glycol mixture)
• Closed and waste systems

Features

• AVTA: opens with rising temperature
• Capillary sensor: universal charge
• Self-acting operation
• Precise temperature control
• Resistant to dirt
• Inert to pressure
• Medium temperature range: -25...130 °C
• Maximum pressure on sensor: 2.5 MPa (25 bar)