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Danfoss AVTA Thermostatically Self-acting cooling water valve
- For self acting thermostatic control and regulation of machines or installations
- Standard temperature regulation range : 0 to 30oC, 10 to 80oC, 25 to 65oC or 50 to 90oC.
- G 3/8" to G1" end connections
- Also available in DZR brass or stainless steel
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Technical Data |
| Media temperature : |
-25 to + 130oC |
| Differential pressure : |
0 to 10 bar |
| Max. working pressure : |
16 bar |
| Max. test pressure : |
25 bar |
| Max. pressure on sensor : |
25 bar |
| Materials : |
Standard valve body : Brass |
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Stainless steel or DZR bodies on request |
Opens on rising sensor temperature. The valve is pressure relieved, i.e. the degree of opening is not effected by differential pressure Δp (pressure drop). The regulation range is defined for the point at which the valve begins to open.
AVTA with adsorption charge
The charge consists of active carbon and CO2 which is absorbed on falling sensor temperature and thereby produce pressure changes in the element.
Special Characteristics:
- Wide regulating range
- Small sensor dimensions - ?9.5 x 160mm. The sensor can be installed in any position as far as orientation and temperature is concerned.
|
| Connection |
Regulating range (oC) |
Max. sensor temperature |
kv Value (m3/h at Δp = 1bar) |
Capillary tube length |
Type |
Code No. |
Weight |
| G 1/2 |
+10 to +80oC |
+130oC |
1.9 |
2.3 |
AVTA15 |
003N0107 |
1.53 |
| G 3/4 |
+10 to +80oC |
+130oC |
3.4 |
2.3 |
AVTA20 |
003N0108 |
1.42 |
| G 1 |
+10 to +80oC |
+130oC |
5.5 |
2.3 |
AVTA25 |
003N0109 |
1.57 |
AVTA with universal charge
The charge is liquid / gas where the liquid surface (regulating point) is always inside the sensor. Which charge medium is used depends on the temperature range.
Special Characteristics
- Sensor Dimensions ?18 x 210mm. The sensor must be installed horizontally or with the free end pointing downwards. The sensor can be installed colder or warmer than the valve.
- Max pressure on sensor 25 bar
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| Connection |
Regulating range (oC) |
Max. sensor temperature |
kv Value (m3/h at Δp = 1bar) |
Capillary tube length |
Type |
Code No. |
Weight |
| G 1/2 |
0 to +30oC |
+57oC |
1.9 |
2 |
AVTA15 |
003N2132 |
1.68 |
| G 3/4 |
0 to +30oC |
+57oC |
3.4 |
2 |
AVTA20 |
003N3132 |
1.50 |
| G 1/2 |
+25 to +65oC |
+90oC |
1.9 |
2 |
AVTA15 |
003N2162 |
1.68 |
| G 3/4 |
+25 to +65oC |
+90oC |
3.4 |
2 |
AVTA20 |
003N3162 |
1.70 |
| G1 |
+25 to +65oC |
+90oC |
5.5 |
2 |
AVTA25 |
003N4162 |
1.83 |
Accessories
Sensor pocket for ?9.5mm - Brass G 1/2 - 017-4367 - ￡16.15 |
