Danfoss thermostatically operated valves are a simple and reliable control solution requiring neither electricity nor control air. An example of application is automatic control of water temperature in cooling systems.
The valves are available with remote or built-in sensor.

The AVTA needs no power, so if the electricity supply is interrupted, the cooling system won’t fail. The AVTA uses small changes in temperature to move the valve cone and proportionally change the coolant flow.

AVTA In addition, the AVTA:
• Is insensitive to dirt, increasing reliability while reducing maintenance costs,
• Is insensitive to water pressure, ensuring reliable function throughout the entire pressure range,
• Minimises the consumption of cooling water,
• Can operate from 0 bar differential pressure,
• Adjusts the temperature to the required value with a high degree of precision, and
• Is easier to install than electrical control valve solutions

AVTA is a self-acting, thermostatically operated valve for use in cooling applications. The valve is commonly used in connection with hydraulic stations, and is often named the "fit and forget" valve, due to its immense reliability, proven throughout decades.
• Self-acting cooling water valves for accurate flow control based on sensor temperature
• Capillary sensor with adsorption charge, mass charge or universal charge
• Open on rising temperature
• Brass or stainless steel valve body
• For extremely aggressive media, also available in titanium
• Medium temp -25 to 130°C

AVTA Thermostatically operated valves with temperature sensitive sensor
Type Code No Wt.[kg] Sensor t.range°C Conn.Orifice Bodymat. Charge Cap.length   Kvm³/h
AVTA 003N2132 1.65       0 - 30 °C       G 1/2   15 mm   Brass Universal   2.000 mm     1.90
AVTA 003N3132 1.70       0 - 30 °C       G 3/4   20 mm   Brass Universal   2.000 mm     3.40
AVTA 003N4132 1.84       0 - 30 °C       G 1      25 mm   Brass Universal   2.000 mm     5.50
AVTA 003N1144 1.58      10 - 80 °C      G 3/8 10 mm    Brass Adsorption 2.300 mm    1.40
AVTA 003N0107 1.51      10 - 80 °C      G 1/2 15 mm    Brass Adsorption 2.300 mm    1.90
AVTA 003N0108 1.56      10 - 80 °C      G 3/4 20 mm    Brass Adsorption 2.300 mm    3.40
AVTA 003N0109 1.70      10 - 80 °C      G 1     25 mm    Brass Adsorption 2.300 mm    5.50
AVTA 003N4150 1.64      10 - 80 °C      G 1     25 mm    St.St.   Adsorption 2.300 mm    5.50
AVTA 003N1162 1.69      25 - 65 °C      G 3/8 10 mm    Brass Universal   2.000 mm    1.40
AVTA 003N0045 1.53      25 - 65 °C      G 1/2 15 mm    Brass Mass          2.000 mm    1.90
AVTA 003N2162 1.64      25 - 65 °C      G 1/2 15 mm    Brass Universal   2.000 mm    1.90
AVTA 003N0046 1.60      25 - 65 °C      G 3/4 20 mm    Brass Mass          2.000 mm    3.40
AVTA 003N3162 1.70      25 - 65 °C      G 3/4 20 mm    Brass Universal   2.000 mm    3.40
AVTA 003N0047 1.65      25 - 65 °C      G 1     25 mm    Brass Mass          2.000 mm    5.50
AVTA 003N4162 1.81      25 - 65 °C      G 1     25 mm    Brass Universal   2.000 mm    5.50
AVTA 003N2182 1.64      50 - 90 °C      G 1/2 15 mm    Brass Universal   2.000 mm    1.90
AVTA 003N3182 1.69      50 - 90 °C      G 3/4 20 mm    Brass Universal   2.000 mm    3.40
AVTA 003N4182 1.84      50 - 90 °C      G 1     25 mm    Brass Universal   2.000 mm    5.50

Service sensor elements - for AVTA
AVTA Element

Type        Code No   Weight Cap.tube length Sensor temp.range Sensor dia. Application
                                            [kg]          [mm]                   [°C]                        [Ømm]
Spare part 003N0075   0.46     2000 mm            0 - 30 °C               18.0 mm          AVTA
Spare part 003N0078   0.43     2000 mm          20 - 65 °C               18.0 mm          AVTA
Spare part 003N0091   0.35     2000 mm          20 - 65 °C                  9.5 mm          AVTA
Spare part 003N0062   0.44     2000 mm          50 - 90 °C               18.0 mm          AVTA

Sensor pockets - for AVTA

Type        Code No       Weight    Material              Sensor type                Connection      Application
                                             [kg]
Accessory    003N0050   0.20     Brass                  Ø 18 universal                 G 3/4             AVTA
Accessory    003N0192   0.20     St.Stl.                 Ø 18 universal                   G 1/2             AVTA
Accessory    003N0196   0.9      St.Stl.    Ø 9.5 mass charge, adsorption  G 1/2             AVTA

Capillary tube glands - for AVTA
Glands for AVTA

Type                          Code No           Weight        Application
                                                                  [kg]
Accessory                 003N0155          0.11           AVTA
Accessory bag         017-422066      0.05            KP / RT

Click to View Danfoss AVTA technical

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