TPI April 2009

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April 2009 Tube Products International 33
developmentsproducts &
Super clean and
inner grooved
copper tube
Qaem Copper Industries Company
is a producer of seamless copper
tube, supplying air conditioning and
refrigeration companies in the Middle
East with a wide range of plain and inner
grooved tubes.
The company has installed advanced
productionandquality control equipment
from companies including Otto Junker
and Schumag, to produce the best
possible products.
The special annealing furnace at Qaem
plant has a copper tube purging (CTP)
system, which provides a protective
atmosphere through level-wound copper
tube coils during the anneal cycle. This
enhances the evaporation of lubricants
from the inner surface of the tube to
levels below 0.1mg/dm2, resulting in
super clean tube products.
One of Qaem’s speciality products is
the inner grooved copper tube. Spirally
running grooves on the inner surface
of the tube increase its contact area
and also result in turbulent flow of
refrigerant.
The heat transfer coefficients of the
inner grooved tubes are typically two
to three times those of comparable
size plain products. The application of
inner grooved tubes has been known to
improve the thermal efficiency of some
fin block heat exchangers by more than
30%.
Qaem also produces a variety of copper
tubes for electrical purposes. Copper
cable lug is used as a connecting
terminal in electric power transfer. It is
suitable for the connection of copper
conductors in power cables with
electronic equipment.
Qaem produces the copper tubes for
cable lugs according to DIN standard
using tough pitch copper (T2) with
purity above 99.9%. These are usually
supplied in straight lengths in a number
of tempers.
Qaem Copper Industries Co – Iran
Comprehensive range of
steel and alloy products
Venus Inter-Trade Agencies is one of
India’s leading indenting agents.
The company has ISO 9001-2000
certification from Lloyd’s Register
Quality Assurance Ltd UK, representing
various manufacturers and suppliers.
The company specialises in a
comprehensive range of steel and alloy
products, from carbon steel to super
alloys, in the form of pipes, tubes,
plates, sheets, bars, fittings, flanges,
forgings and valves in CS, SS, duplex,
super duplex, nickel alloys, super
alloys, nace material, titanium, hot and
cold rolled coils/plates and structural
steels.
Venus Inter-Trade Agencies – India