Air Conditioning, Refrigeration and Medical Gas Tubes

Rajco produces copper tubes in DHP grade for a videspectrum of the heating, ventilating, airconditioning, refrigeration, medical gas & cooling industry.Tubes are manufactured to suit various specifications;prominent amongst these are are the ASTM B68,ASTM B75, BS 2871, EN 1057, ASTM B280 and theJIS H3300. Tubes are also manufactured to suit internal customer specifications. We are proud tosupply to a wide range of refrigeration & airconditioning requirements in hard, half hard, quarter hard or soft annealed condition.

Airconditioning & Refrigeration copper tubes are made from phosphorous deoxidised copper(DHP Grade) alloy C-106 or UNS No. C-12200 with minimum copper purity of 99.9% andphosphorous purity of 0.015% to 0.040% with strict dimensional tolerances as per ASTM B251to ensure the highest standards & guaranteed performance. The internal bore cleanliness meets the requirement of the residue test as specified by the codes to give you a meticulously clean,mirror-like inner surface & also to suit the new refrigeration gases like R 134 A, R-600 or R-410 & refrigeration lubricants like Ester Oil. The tube integrity is well defined by the fact that all tubes meet the standards of ASTM E243 & are eddy current tested to ensure that a defect free and flawless tube is supplied to the customer.

Rajco's AC & R tubes are bright annealed, having uniform grain size, controlled hardness,elongation & tensile strength. Tubes can be readily bent, manipulated, soldered or brazed.Rajco's refrigeration quality tubes are not only exported, but are also contributing to importsubstitution in India, relied upon byHitachi,Daewoo, Voltas, Kirloskar Copeland, Electrolux,BPL Sanyo, Blue Star and Mat s u s hit the sizes manufactured range from 1 5/8" 00to 1/8" 00 & in thickness from 10 to 30 SWG.Tubes can be supplied in 50 feet or 15 metrescoil form or in straight lenghth as per client requirements.

Copper tubes for medical gas lines are specially cleaned and aresupplied to the installer capped or plugged. Apart from the obvious reasons to ensure the cleanliness of copper tubes for these applications, oxygen under pressure, may cause spontaneous combustion of some organic oils which are residues of lubricating oilsused during the manufacture of copper pipes and more so, for themedical safety of patients. Copper tubes are chosen for surgicalvacuum systems, because of its resistance to corrosion and easilycleaned internal surfaces and when in use, detergents are periodically passed through to purge and sterilize the lines.

This is because both copper tubes and fittings are the only solution for supplying medical gases with proper safety and cleanliness requirements conforming to various specifications. Safety standards for copper and other positive pressure medical gases require the use of copper tubes with special cleanliness. Rajco conforms to these requirements.