Capillary Tubes

Capillary tubes are precision-engineered metering devices used in refrigeration and air conditioning systems to control the flow of refrigerant into the evaporator. These narrow-diameter copper tubes restrict refrigerant flow based on system pressure and temperature, making them an effective and economical expansion device in small and medium-capacity systems. Their simplicity, reliability, and low maintenance make them ideal for sealed systems without fluctuating loads.

At Finstar Industrial Systems Ltd, we supply high-quality capillary tubes in various internal diameters and lengths. Hence, they are suitable to use with refrigerants such as R134a, R404a, and R600a. Our tubes are made from seamless, corrosion-resistant copper for maximum durability and consistent refrigerant flow. Whether for repair, customization, or new builds, we provide capillary tubes tailored to your refrigeration system specifications.

Applications of Capillary Tubes

Domestic Refrigerators and Freezers
Capillary systems are the standard expansion devices in household refrigeration units, offering precise refrigerant control without complex valve mechanisms.
Water Dispensers and Mini Coolers
Compact cooling systems use these tubes for simplicity and efficiency. These systems benefit from the tube’s stable performance under fixed loads.
Display Cabinets and Beverage Coolers
Retail refrigeration units rely on capillary tubes for consistent performance in low- to medium-capacity applications with limited fluctuations.
Small Cold Rooms and Portable Freezers
The tubes provide an ideal solution for small, sealed systems where simplicity, reliability, and cost-effectiveness are key.
Custom-Built Refrigeration Projects
For technicians building or repairing refrigeration circuits, capillary tubing allows flexible design and adaptation to specific evaporator and compressor conditions.

Why Choose Finstar Industrial Systems Ltd?

Finstar Industrial Systems Ltd supplies precision-cut capillary tubes for a wide range of refrigerant types and system requirements. Our technical team assists in selecting the correct tube diameter and length for optimal system performance. These tubes are suitable when repairing a household fridge or customizing a cold room system. We deliver reliable components that ensure accurate refrigerant flow and efficient cooling.