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Danfoss AVTA Thermostatic Valves

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.


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
 
Table Glossary

AVTA with universal charge : The charge is a mix of liquid and gas where the liquid surface (regulating point) is always inside the sensor. Which charge medium is used depends on the regulation range
• Sensor dimensions ø18 × 210 mm
• Sensor can be installed in a place where it is
• Either colder or warmer than the valve
• Max. pressure on sensor 25 bar

AVTA with mass charge : The charge is a mix of liquid and gas. Due to the mixture of liquid and gas the sensor must be installed in an area or environment that is warmer than the valve
• Small sensor dimensions – ø9.5 × 180 mm
• Short time constant
• Max. pressure on sensor 25 bar

AVTA with adsorption charge
• Wide regulating range
• Can be installed in any position as far as orientation and temperature are concerned
• Small sensor dimensions – ø9.5 × 150 mm
• Max. pressure on sensor 25 bar

 
AVTA Brass Thermostatically Operated Valves with Temperature Sensitive Sensor
Code No. Type Conn. Cap tube (mm) Orifice size (mm) Kv value (m³/h) Temp range (°C) Charge type Arm. Cap. tube
003N0031 AVTA 20 G 3/4 2000 mm 20,00 mm 3,40, 3,400 m³/h 25 - 65 °C UNIVERSAL Yes
003N0032 AVTA 25 G 1 2000 mm 25,00 mm 5,50, 5,500 m³/h 25 - 65 °C UNIVERSAL Yes
003N0034 AVTA 15 G 1/2 5000 mm 15,00 mm 1,90, 1,900 m³/h 25 - 65 °C MASS -
003N0041 AVTA 15 G 1/2 2000 mm 15,00 mm 1,90, 1,900 m³/h 25 - 65 °C UNIVERSAL Yes
003N0042 AVTA 15 G 1/2 2000 mm 15,00 mm 1,90, 1,900 m³/h 0 - 30 °C MASS -
003N0043 AVTA 20 G 3/4 2000 mm 20,00 mm 3,40, 3,400 m³/h 0 - 30 °C MASS -
003N0045 AVTA 15 G 1/2 2000 mm 15,00 mm 1,90, 1,900 m³/h 25 - 65 °C MASS -
003N0046 AVTA 20 G 3/4 2000 mm 20,00 mm 3,40, 3,400 m³/h 25 - 65 °C MASS -
003N0047 AVTA 25 G 1 2000 mm 25,00 mm 5,50, 5,500 m³/h 25 - 65 °C MASS -
003N0107 AVTA 15 G 1/2 2300 mm 15,00 mm 1,90, 1,900 m³/h 10 - 80 °C ADSORPTION -
003N0108 AVTA 20 G 3/4 2300 mm 20,00 mm 3,40, 3,400 m³/h 10 - 80 °C ADSORPTION -
003N0109 AVTA 25 G 1 2300 mm 25,00 mm 5,50, 5,500 m³/h 10 - 80 °C ADSORPTION -
003N0115 AVTA 15 G 1/2 2300 mm 15,00 mm 1,90, 1,900 m³/h 10 - 80 °C ADSORPTION -
003N0299 AVTA 15 G 1/2 2000 mm 15,00 mm 1,90, 1,900 m³/h 25 - 65 °C MASS Yes
003N0907 AVTA 15 G 1/2 2300 mm 15,00 mm 1,90, 1,900 m³/h 40 - 110 °C ADSORPTION -
003N0908 AVTA 20 G 3/4 2300 mm 20,00 mm 3,40, 3,400 m³/h 40 - 110 °C ADSORPTION -
003N0909 AVTA 25 G 1 2300 mm 25,00 mm 5,50, 5,500 m³/h 40 - 110 °C ADSORPTION -
003N1132 AVTA 10 G 3/8 2000 mm 10,00 mm 1,40, 1,400 m³/h 0 - 30 °C UNIVERSAL -
003N1144 AVTA 10 G 3/8 2300 mm 10,00 mm 1,40, 1,400 m³/h 10 - 80 °C ADSORPTION -
003N1162 AVTA 10 G 3/8 2000 mm 10,00 mm 1,40, 1,400 m³/h 25 - 65 °C UNIVERSAL -
003N1182 AVTA 10 G 3/8 2000 mm 10,00 mm 1,40, 1,400 m³/h 50 - 90 °C UNIVERSAL -
003N2107 AVTA 15 G 1/2 540 mm 15,00 mm 1,90, 1,900 m³/h 10 - 80 °C ADSORPTION Yes
003N2114 AVTA 15 G 1/2 2000 mm 15,00 mm 1,90, 1,900 m3/h 10 - 80 °C ADSORPTION Yes
003N2119 AVTA 15 G 1/2 540 mm 15,00 mm 1,90, 1,900 m³/h 50 - 90 °C ADSORPTION Yes
003N2132 AVTA 15 G 1/2 2000 mm 15,00 mm 1,90, 1,900 m³/h 0 - 30 °C UNIVERSAL -
003N2133 AVTA 15 G 1/2 2000 mm 15,00 mm 1,90, 1,900 m3/h 0 - 30 °C UNIVERSAL -
003N2162 AVTA 15 G 1/2 2000 mm 15,00 mm 1,90, 1,900 m³/h 25 - 65 °C UNIVERSAL -
003N2165 AVTA 15 G 1/2 2000 mm 15,00 mm 1,90, 1,900 m3/h 25 - 65 °C MASS -
003N2169 AVTA 15 G 1/2 2000 mm 15,00 mm 1,90, 1,900 m3/h 25 - 65 °C UNIVERSAL -
003N2175 AVTA 15 G 1/2 2000 mm 15,00 mm 1,90, 1,900 m³/h 25 - 65 °C MASS -
003N2182 AVTA 15 G 1/2 2000 mm 15,00 mm 1,90, 1,900 m³/h 50 - 90 °C UNIVERSAL -
003N2202 AVTA 15 G 1/2 2000 mm 15,00 mm 1,90, 1,900 m³/h 50 - 90 °C UNIVERSAL -
003N2212 AVTA 15 G 1/2 2000 mm 15,00 mm 1,90, 1,900 m³/h 50 - 90 °C UNIVERSAL -
003N2213 AVTA 15 G 1/2 2000 mm 15,00 mm 1,90, 1,900 m³/h 50 - 90 °C UNIVERSAL -
003N2299 AVTA 15 G 1/2 2000 mm 15,00 mm 1,90, 1,900 m³/h 25 - 65 °C MASS Yes
003N2303 AVTA 15 G 1/2 2000 mm 15,00 mm 1,90, 1,900 m³/h 10 - 80 °C ADSORPTION Yes
003N2305 AVTA 15 G 1/2 2000 mm 15,00 mm 1,90, 1,900 m³/h 10 - 80 °C ADSORPTION Yes
003N3132 AVTA 20 G 3/4 2000 mm 20,00 mm 3,40, 3,400 m³/h 0 - 30 °C UNIVERSAL -
003N3162 AVTA 20 G 3/4 2000 mm 20,00 mm 3,40, 3,400 m³/h 25 - 65 °C UNIVERSAL -
003N3165 AVTA 20 G 3/4 5000 mm 20,00 mm 3,40, 3,400 m³/h 25 - 65 °C UNIVERSAL -
003N3171 AVTA 20 G 3/4 2300 mm 20,00 mm 3,40, 3,400 m³/h 10 - 110 °C ADSORPTION -
003N3182 AVTA 20 G 3/4 2000 mm 20,00 mm 3,40, 3,400 m³/h 50 - 90 °C UNIVERSAL -
003N3184 AVTA 20 G 3/4 4000 mm 20,00 mm 3,40, 3,400 m³/h 50 - 90 °C UNIVERSAL -
003N3190 AVTA 20 G 3/4 2000 mm 20,00 mm 3,40, 3,400 m³/h 50 - 90 °C UNIVERSAL -
003N4132 AVTA 25 G 1 2000 mm 25,00 mm 5,50, 5,500 m³/h 0 - 30 °C UNIVERSAL -
003N4162 AVTA 25 G 1 2000 mm 25,00 mm 5,50, 5,500 m³/h 25 - 65 °C UNIVERSAL -
003N4165 AVTA 25 G 1 5000 mm 25,00 mm 5,50, 5,500 m³/h 25 - 65 °C UNIVERSAL -
003N4182 AVTA 25 G 1 2000 mm 25,00 mm 5,50, 5,500 m³/h 50 - 90 °C UNIVERSAL -
003N4183 AVTA 25 G 1 3000 mm 25,00 mm 5,50, 5,500 m³/h 50 - 90 °C UNIVERSAL -
003N6115 AVTA 15 NPT 1/2-14 2300 mm 15,00 mm 1,90, 1,900 m³/h 10 - 80 °C ADSORPTION -
003N6132 AVTA 15 NPT 1/2-14 2000 mm 15,00 mm 1,90, 1,900 m³/h 0 - 30 °C UNIVERSAL -
003N6162 AVTA 15 NPT 1/2-14 2000 mm 15,00 mm 1,90, 1,900 m³/h 25 - 65 °C UNIVERSAL -
003N6182 AVTA 15 NPT 1/2-14 2000 mm 15,00 mm 1,90, 1,900 m³/h 50 - 90 °C UNIVERSAL -
003N7120 AVTA 20 NPT 3/4-14 2300 mm 20,00 mm 3,40, 3,400 m³/h 10 - 80 °C ADSORPTION -
003N7162 AVTA 20 NPT 3/4-14 2000 mm 20,00 mm 3,40, 3,400 m³/h 25 - 65 °C UNIVERSAL -
003N7182 AVTA 20 NPT 3/4-14 2000 mm 20,00 mm 3,40, 3,400 m³/h 50 - 90 °C UNIVERSAL -
003N8125 AVTA 25 NPT 1 2300 mm 25,00 mm 5,50, 5,500 m³/h 10 - 80 °C ADSORPTION -
003N8132 AVTA 25 NPT 1 2000 mm 25,00 mm 5,50, 5,500 m³/h 0 - 30 °C UNIVERSAL -
003N8162 AVTA 25 NPT 1 2000 mm 25,00 mm 5,50, 5,500 m³/h 25 - 65 °C UNIVERSAL -
003N8182 AVTA 25 NPT 1 2000 mm 25,00 mm 5,50, 5,500 m³/h 50 - 90 °C UNIVERSAL -
 
 
 
AVTA Stainless Steel Thermostatically Operated Valves for aggressive media
Code No. Type Conn. Cap tube (mm) Orifice size (mm) Kv value (m³/h) Temp range (°C) Charge type Arm. Cap. tube
003N1710 AVTA 15 G 1/2 2000 mm 15,00 mm 1,90, 1,900 m3/h 25 - 65 °C MASS -
003N2150 AVTA 15 G 1/2 2300 mm 15,00 mm 1,90, 1,900 m3/h 10 - 80 °C ADSORPTION -
003N2151 AVTA 15 G 1/2 2000 mm 15,00 mm 1,90, 1,900 m3/h 0 - 30 °C UNIVERSAL Yes
003N2152 AVTA 15 G 1/2 2300 mm 15,00 mm 1,90, 1,900 m3/h 10 - 80 °C ADSORPTION -
003N3150 AVTA 20 G 3/4 2300 mm 20,00 mm 3,40, 3,400 m3/h 10 - 80 °C ADSORPTION -
003N4150 AVTA 25 G 1 2300 mm 25,00 mm 5,50, 5,500 m3/h 10 - 80 °C ADSORPTION -
003N4152 AVTA 25 G 1 2000 mm 25,00 mm 5,50, 5,500 m3/h 0 - 30 °C UNIVERSAL -
 
  
AVTA Spare Parts and Accessories
AVTA Spare Parts
 
AVTA Spare Parts and Accessories
Code No. Type/Description Temp range (°C) Sensor (dia x L) (mm) Arm. Cap. tube Conn standard Conn size (in) Cap Length (mm)
003N0012 Adjusting handle - - - - - -
003N0050 Sensor pocket - 18 x 210 mm - ISO 228-1 G External -
003N0051 Sensor pocket - 18 x 210 mm - ANSI/ASME B1.20.1 NPT External -
003N0053 Sensor pocket - 18 x 210 mm - ANSI/ASME B1.20.1 NPT External -
003N0056 Capillary tube gland - 18 x 210 mm - - - -
003N0062 Thermostatic element 50-90°C 18 x 210 mm - - - 2000 mm
003N0063 Thermostatic element 25-65°C, 20-60°C 18 x 210 mm Yes - - 2000 mm
003N0066 Thermostatic element 0-30°C 9,5 x 180 mm - - - 2000 mm
003N0068 Thermostatic element 25-65°C, 20-60°C 9,5 x 180 mm - - - 5000 mm
003N0075 Thermostatic element 0-30°C 18 x 210 mm - - - 2000 mm
003N0077 Thermostatic element 0-30°C 18 x 210 mm - - - 5000 mm
003N0078 Thermostatic element 25-65°C, 20-60°C 18 x 210 mm - - - 2000 mm
003N0079 Thermostatic element 25-65°C, 20-60°C 18 x 210 mm - - - 3000 mm
003N0089 Thermostatic element 50-90°C 18 x 210 mm - - - 3000 mm
003N0091 Thermostatic element 25-65°C, 20-60°C 9.5 x 180 mm - - - 2000 mm
003N0155 Capillary tube gland - 18 x 210 mm - - - -
003N0192 Sensor pocket - 18 x 210 mm - ISO 7-1 R External -
003N0196 Sensor pocket - 9,5 x 150 mm , 9,5 x 180 mm - ISO 7-1 R External -
003N0278 Thermostatic element 10-80°C 9,5 x 150 mm - - - 2300 mm
003N0388 Bracket - - - - - -
003N0520 Plastic hand knob - - - - - -
003N4006 Repair kit - - - - - -