Refrigeration Heat Exchange Tubes

Refrigeration heat exchange tubes are purpose-built for a wide range of refrigeration equipment including cold storage rooms, heat pumps, refrigerated air dryers, ice machines, supermarket display cabinets, and refrigerated vehicles. Different refrigeration applications impose varying requirements on tube design and performance. Kenergy offers dedicated solutions for three typical application scenarios:

Dry Expansion Evaporator Tubes — Inner grooved straight tubes designed for dry expansion evaporators where refrigerant evaporates inside the tube while water or secondary coolant flows outside. The internally grooved structure achieves efficient heat transfer within a compact envelope. Ideal for heat pump units, industrial chillers, and compressed air dryers. Our optimized groove profiles maintain a high heat transfer coefficient even at low refrigerant flow rates.

Heat Pump Evaporator Tubes — Specifically engineered for air-to-water and air-to-air heat pumps, these tubes must deliver reliable evaporation efficiency at low ambient temperatures and withstand defrost cycle stresses. Kenergy's heat pump tubes feature optimized internal groove geometry that maintains efficient heat transfer across an evaporation temperature range of -10°C to +10°C, while providing robust pressure resistance and freeze-thaw durability. Compatible with R134a, R410A, R32, and R290 refrigerants.

Condensing Unit Tubes — Designed for small condensing units used in commercial refrigeration such as supermarket display cases, ice machines, and beverage coolers. These tubes prioritize compact dimensions and reliable pressure handling. Kenergy supplies small-diameter, uniform-wall tubes that enable compact condenser designs, helping customers reduce overall equipment footprint.