Thermostatic Expansion Valve
Description
ASTV, BWTV and ETV series thermostatic expansion valves can be used in refrigeration cabinets, ice machines, dehumidifiers, and refrigeration/air conditioning units for a wide range of temperatures. The ETV series of valves uses a solder ODF connection.
Thermostatic expansion valves with nominal capacities of ETV are 14 to 100 tones (R22), making them fit for large refrigeration systems.
Characteristics
1. Constant superheat adjusting performance
2. Wide range of evaporating temperatures (-40 to 10°C)
3. Each valve can be outfitted with an MOP (maximum operating pressure)
4. The large effective area of the diaphragm ensures stable operating of the valve.
5. Adjusts to refrigerant R410A.
| Valve type | R134a | R22 | R407C | R404A/R507 | R410A | Connection | Capillary tube(m) | Equalization | ||||||
| Inlet×Outlet | ||||||||||||||
| Model | Nominal capacity | Model | Nominal capacity | Model | Nominal capacity | Model | Nominal capacity | Model | Nominal capacity | In. | mm | |||
| (KW) | (KW) | (KW) | (KW) | (KW) | ||||||||||
| ASTV(E) BWTV(E) | 1.5N | 6.5 | 2X | 7 | 2Z | 7 | 1.5S | 5.3 | 2L | 7 | 3/8×1/2 | 10×12 | 1.5 | Internal equalizer or External equalizer |
| 2N | 8.8 | 3X | 10.5 | 3Z | 10.5 | 2S | 7 | 3.5L | 12.3 | |||||
| 2.5N | 11 | 4X | 14 | 4Z | 14 | 2.5S | 8.8 | 4L | 14 | |||||
| 3N | 13.2 | 5X | 17.5 | 5Z | 17.5 | 3S | 10.5 | 6L | 21 | 3/8×5/8 | 10×16 | |||
| 5.5N | 19.3 | 7.5X | 26.3 | 7.5Z | 26.3 | 5S | 14 | 9L | 31.5 | 1/2×5/8 | 12×16 | |||
| 7.5N | 26.3 | 10X | 35 | 10Z | 35 | 6.5S | 22.8 | 12L | 42 | |||||
| 9N | 31.5 | 12X | 42 | 12Z | 42 | 8S | 28 | 14L | 49 | |||||
| ETV | 11N | 39 | 14X | 49 | 14Z | 49 | 9S | 32 | 5/8×7/8 ODF | 16×22 ODF | 1.5 | External equalizer | ||
| 13N | 46 | 18X | 63 | 18Z | 63 | 11S | 39 | |||||||
| 16N | 56 | 22X | 77 | 22Z | 77 | 14S | 49 | |||||||
| 19N | 67 | 26X | 92 | 26Z | 92 | 16S | 56 | 7/8×9/8 ODF | 22×28 ODF | 3 | ||||
| 25N | 88 | 35X | 123 | 35Z | 123 | 22S | 77 | |||||||
| 31N | 109 | 45X | 158 | 45Z | 158 | 28S | 94 | |||||||
| 45N | 158 | 55X | 193 | 55Z | 193 | 39S | 137 | |||||||
| 55N | 193 | 75X | 264 | 75Z | 264 | 50S | 176 | |||||||
| 68N | 239 | 100X | 352 | 100Z | 352 | 60S | 211 | |||||||
Nominal capacity is based on 38°C, condensing temperature of 4°C, evaporating temperature and 1K liquid sub cooling at the inlet of the expansion valve.
Valve Pressure drop Rates
R134A: 0.41MPa
R22, R407C, R404A/507: 0.69MPa
R410A: 1.35MPa
Technical Data
Max. body temperature: 80 ℃
Max. bulb sensing temperature: 60 ℃（R410A:50 ℃）
About R134a, R22, R407C, R404A/R507 system:
Max. working pressure: 3 MPa
Max. testing pressure: 3.3 MPa
About R410A system:
Max. working pressure: 4.2 MPa
Max. testing pressure: 4.8 MPa
Operating temperature ranges: -40 ℃ 10 ℃
| Connection Form | Valve code | Equalization | Norminal capacity | Refrigerant code |
| AS | TV | E | 7.5 | X |
| AS-Flare SAE BW-Solder ODF | Thermostatic Expansion Valve Code | "E"indicates external equlizer (Omit for internal equalizer) | Nominal capacity (tons) | N - R134a |
| X - R22 | ||||
| Z - R407C | ||||
| S-R404A/R507 | ||||
| L-R410A |
Model ASTVE7.5X is an example only.
Ordering Information| Valve code | Norminal capacity | Refrigerant code |
| ETV | 14 | X |
| Thermostatic Expansion Valve Code | Nominal capacity (tons) | N - R134a |
| X - R22 | ||
| Z - R407C | ||
| S-R404A /R507 |
Model ETV14X is an example only.
OEM orders are available on an minimum order quantity of 500units per model. For more information, please contact us directly.
