AC, refrigerator, water cooler, and deep freezer capillary tube size and length chart for efficient cooling and accurate repair reference.
| Unit Size | Capillary Tube | Length | Nos |
|---|---|---|---|
| 0.5 Ton | 0.055" | 32" | 1 |
| 0.75 Ton | 0.055" | 34" | 1 |
| 1 Ton | 0.055" | 32" | 2 |
| 1.5 Ton | 0.060" | 27" | 2 |
| 2 Ton | 0.064" | 28" | 2 |
| Liters Size | Capillary Tube | Length | Nos |
|---|---|---|---|
| 40 Ltr | 0.050" | 5 ft | 1 |
| 45 Ltr | 0.042" | 10 ft | 1 |
| 60 Ltr | 0.050" | 5 ft | 2 |
| 110 Ltr | 0.055" | 32 ft | 2 |
| Liters Size | Capillary Tube | Length | Nos |
|---|---|---|---|
| 230 Ltr | 0.036" | 10 ft | 1 |
| 380 Ltr | 0.036" | 10 ft | 1 |
| 600 Ltr | 0.050" | 10 ft | 1 |
| Liters Size | Capillary Tube | Length | Nos |
|---|---|---|---|
| 100-140 Ltr | 0.026" | 14½ ft | 1 |
| 160-165 Ltr | 0.030" | 10½ ft | 1 |
| 200-250 Ltr | 0.030" | 10 ft | 1 |
| 300 Ltr | 0.036" | 14½ ft | 1 |
| Liters Size | Capillary Tube | Length | Nos |
|---|---|---|---|
| 200 Ltr | 0.036" | 11 ft | 1 |
| 380 Ltr | 0.042" | 13 ft | 1 |
Capillary tubes are essential components used in refrigeration and air conditioning systems. They control the flow of refrigerant between the condenser and evaporator, maintaining proper cooling performance. The correct size and length of a capillary tube ensure the efficient operation of Air Conditioners, Refrigerators, Water Coolers, Deep Freezers, and Double Door Fridges. In this article, we share a complete chart of capillary tube size and length for different appliances.
1. Air Conditioner Capillary Tube
In air conditioners, capillary tube size varies according to the tonnage of the unit. For example, a 0.5-ton AC uses a 0.055-inch tube with a length of 32 inches. A 1-ton AC usually requires two tubes of 0.055 inches and 32 inches each. Higher capacity units like 1.5 and 2 tons use 0.060 and 0.064-inch tubes with shorter lengths to handle higher refrigerant flow. Choosing the correct tube size helps maintain accurate suction and discharge pressure.
2. Water Cooler Capillary Tube
Water coolers depend on smaller capillary tubes for consistent cooling. For 40-liter and 60-liter coolers, the ideal tube size is 0.050 inches, with lengths between 5 to 10 feet depending on model and cooling power. A 110-liter water cooler uses two 0.055-inch tubes, each 32 feet long, for higher load and faster cooling efficiency.
3. Deep Freezer Capillary Tube
Deep freezers require precise refrigerant control to maintain subzero temperatures. For 230 and 380-liter models, the best capillary tube is 0.036 inches with a 10-foot length. For larger 600-liter freezers, 0.050-inch tubes of the same length are used. The proper balance of tube size and length helps maintain stable freezing performance and reduces compressor load.
4. Refrigerator Capillary Tube
In domestic refrigerators, capillary tube size depends on capacity. A 100–140-liter refrigerator uses a 0.026-inch tube around 14½ feet long. Larger fridges from 160 to 250 liters use 0.030-inch tubes, while 300-liter models perform better with a 0.036-inch tube of the same length. Accurate capillary sizing keeps the cooling uniform and prevents excess frost buildup.
5. Double Door Refrigerator Capillary Tube
Double door refrigerators handle greater load and require thicker tubes. A 200-liter model works efficiently with a 0.036-inch tube, 11 feet long, whereas a 380-liter model needs a 0.042-inch tube, 13 feet long. These values ensure balanced refrigerant flow for both freezer and fridge compartments.
Conclusion
Selecting the right capillary tube size and length is critical for maintaining cooling efficiency and extending compressor life. Whether you’re repairing an air conditioner, refrigerator, or deep freezer, always refer to the recommended chart before replacement. Using incorrect tube specifications may result in low cooling, high energy consumption, or system failure.
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