2PCS Copper Capillary Tube 900mm Length 3mm Diameter
2PCS Copper Capillary Tube 900mm — 1/4" FSAE Refrigeration Parts
At OzSupply Australia, we stock 900mm copper capillary tubes with a 3mm outer diameter, ideal for use as throttling devices in refrigeration and air-conditioning systems. Suitable for domestic refrigerators, deep freezers, water coolers, and air conditioner units, the generous 900mm length makes it a versatile fit for most repair and installation jobs.
What Is a Capillary Tube?
A capillary tube is one of the most commonly used throttling devices in refrigeration and air-conditioning systems. It's a copper tube with a very small internal diameter, made long and coiled into several turns to save space. Internal diameters for refrigeration and air-conditioning applications typically range from 0.5mm to 2.28mm (0.020" to 0.09"). Capillary tubes are widely used as throttling devices in domestic refrigerators, deep freezers, water coolers, and air conditioners.
How Does It Work?
As refrigerant leaves the condenser and enters the capillary tube, its pressure drops suddenly due to the tube's very small diameter. This pressure drop occurs not because of an orifice, but because of the narrow, restricted bore of the capillary tube itself.
Specifications:
- Length: 900mm
- Outer Diameter: 3mm
- Fitting: 1/4" FSAE (SAE flare)
- Quantity: 2 pieces
- Material: Copper



