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Capillary Copper Tube usually stands for copper tubes have a very small diameter. It could be either straight or coil form, as the condition hard or annealed are both avialable.
Inside diameter (I.D.) ranging from 0.020~0.175 inches (0.50~4.45mm)
Outside diameter (O.D.) ranging from 0.072~0.24 inches (1.83~6.10mm)
The simplest in design, lowest in cost type expansion devices of cooling and air conditioning in refrigeration systems is the capillary tube. A capillary tube reduces refrigerant pressure using friction and the acceleration of the refrigerant in the tube[note 1].
Combination of length and diameter of the capillary tube can meet the requirements of various conditions & different cooling capacity of the refrigerant device, however the once capillary copper tube is selected and installed, it can not change with the load changes, in order to make the cooling device In the vast majority of time under the high efficiency of operation. So select a representative design is very important
Due to the excellent features, capillary copper tubes is widely used in precision instrument, air conditioning and refrigeration, electronic, thermostate, relay and other industries.
|Material No.||Chemical Composition||Temper||Mechanical Property|
|Copper % (min)||Phosphorus %||Tensile Strength (Mpa)||Elongation %|
Belowing is a table of most common capillary copper tube's specifications that be supplied by Winland. However, if you need customized products, feel free to write to us by firstname.lastname@example.org and see what we are capable.
Area of Tube Bore
|Quantity per Coil|
Note 1: Design of an Experimental Apparatus for Studying the Flow of Refrigerant R-134a in a Capillary Tube Refrigeration System, by M. F. G. Johnson and W. E. Dunn, Sept 1993. Orignal source