Products

Copper Capillary Tube for Refrigeration and Air Conditioning

Product Description

Copper capillary tube is one of the most commonly used throttling devices in the refrigeration and air conditioning systems (domestic refrigerators, deep freezers, water coolers and air conditioners). The copper capillary tube limits the maximum amount of the refrigerant that can be charged in the refrigeration and air conditioning system due to which the receiver is not required in these systems.

Copper capillary pipe is usually manufactured with fine precision. This precision allows airflow to be smoother, more uniform, and more closely monitored, making such applications as fluid & air restrictors much more useful.

Copper capillary tubing is usually supplied in coils (level wound coil and pancake coil) and in annealed form. Our copper capillary tubing is available in outside diameter from 1.83mm to 6.1mm (from 0.072” to 0.240”)

 

Material

The copper tubes are made in compliance with UNS C12200 (Cu-DHP) alloy, with copper content more than 99.90% and with phosphorous range of 0.015% to 0.040%

 

Key Feature

Smoother, more uniform, and more closely monitored

With controlled inside diameter, higher cleanliness

Compatible for usage of R134a, R124a refrigerants

Manufactured as per ASTM B360 Standard, EN 12450 Standard

Temper available in soft annealed, hard drawn

With controlled air flow

Key Feature

Supplied in coil for soft annealed temper and straight length for hard drawn temper

Random bunch: 5-30kg

Large coil: 50-100 meters, Medium coil: 15-30 meters, mini coil: 3-10 meters

 

Technical Properties

Copper Alloy	Chemical Composition		Temper	Mechanical Property		Standard
	Copper %	Phosphorus %		Tensile Strength MPa	Elongation %
C12200	≥ 99.90	0.015-0.040	O60	≥ 205	≥ 40	ASTM B360 & ASTM B68
C12200	≥ 99.90	0.015-0.040	O50	≥ 205	≥ 40
C12200	≥ 99.90	0.015-0.040	1/2 Hard	250-320	/
C12200	≥ 99.90	0.015-0.040	Hard	≥ 310	/
Cu-DHP	≥ 99.90	0.015-0.040	R240	≥240	≥15	EN 12450
Cu-DHP	≥ 99.90	0.015-0.040	R320	≥320	≥5
Cu-DHP	≥ 99.90	0.015-0.040	R395	395-515	/

 

 

Flow Requirement

Flow  l/min		tolerance on flow	Standard
over	up to and including
-	5	±0.3	EN 12450
5	9	±0.4
9	14	±0.6
14	20	±0.8

Specifications

ASTM B280 Standard

O.D.		I.D.		Wall Thickness		Weight    kg/m
inch	mm	inch	mm	inch	mm
0.072	1.83	0.028	0.711	0.022	0.558	0.0199
0.081	2.06	0.031	0.787	0.025	0.635	0.0254
0.081	2.06	0.033	0.838	0.024	0.606	0.0248
0.087	2.21	0.036	0.914	0.0255	0.648	0.0284
0.087	2.21	0.039	0.991	0.024	0.606	0.0239
0.093	2.36	0.042	1.07	0.0255	0.648	0.0312
0.097	2.47	0.046	1.17	0.0255	0.648	0.0331
0.099	2.51	0.049	1.24	0.025	0.635	0.0335
0.106	2.69	0.054	1.37	0.026	0.660	0.0377
0.112	2.84	0.059	1.50	0.0265	0.673	0.0411
0.125	3.18	0.064	1.63	0.0305	0.775	0.0522
0.125	3.18	0.070	1.78	0.0275	0.698	0.0486
0.125	3.18	0.075	1.91	0.025	0.635	0.0454
0.145	3.68	0.080	2.03	0.0325	0.826	0.0663
0.145	3.68	0.085	2.16	0.030	0.762	0.0625
0.145	3.68	0.090	2.29	0.0275	0.698	0.0586
0.160	4.06	0.100	2.54	0.030	0.762	0.0707
0.160	4.06	0.110	2.79	0.025	0.635	0.0611
0.188	4.78	0.120	3.03	0.034	0.864	0.0949
0.188	4.78	0.130	3.30	0.029	0.737	0.0836
0.200	5.08	0.145	3.68	0.0275	0.698	0.086
0.220	5.59	0.160	4.06	0.030	0.762	0.103
0.240	6.10	0.175	4.45	0.0325	0.826	0.121