TPi April 2010

Photo: ETS Pouchard, France

developments products & Copper tubes from Qaem are suitable for applications such as air conditioning and refrigeration, plumbing and heating systems. Choosing the right copper tube for your application

inner grooved type. They are lightweight and have good heat transfer. The special annealing furnace at the Qaem plant has a copper tube purging (CTP) system that provides a protective atmosphere through level-wound copper tube coils during the anneal cycle. This enhances the evaporation of lubricants from the inner surface to levels below 0.1mg/dm 2 , resulting in clean tube products. Qaem also produces a variety of copper tubes for electrical purposes. Copper cable lug, used as a connecting terminal in electric power transfer, is suitable for connection of copper conductors in power cable 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%, and they are usually supplied in straight lengths in a number of tempers.

to install than soft tubing, particularly in existing homes. It needs very little mechanical support to keep it in position, compared to soft tubing. Soft copper tubing is sold in coils of 50 to 180ft and is often preferred for repair work, since it can be run around obstacles without connections or cuts. Both function equally well once installed. Since copper tube became the standard for potable water systems, it has generally outlasted the buildings in which it has been installed, and is frequently recycled for new construction. Records show that corrosion failures of copper plumbing systems occur in less than 1% of all known installations. Copper tubes offer long life, strength and corrosion resistance, and so meet the requirements for plumbing and heating systems. Copper tubes are considered ideal for domestic applications such as hot water, heating and solar panels. Qaem Copper Industries Company has developed thin-walled copper tubes, produced in LWC form, both in plain and

Copper is the most commonly used material for residential water supply lines. Because of its thin-wall construction, copper tubing is smaller than IPS (iron pipe size) pipe. This distinguishes CTS (copper tubing size) from IPS. There are two basic types of copper tube: hard (tempered) and soft (annealed). It is up to the designer to select the type of copper tube for use in a particular application. Strength, formability and other mechanical factors often determine the choice. Plumbing and mechanical codes govern what types may be used. When a choice can be made, it is helpful to know which type of copper tube can serve successfully in a given application. Hard tubing is rigid tubing sold in lengths of 10 or 20ft and is the most common pipe installed in new homes. It makes a neater installation, but it is more difficult

Qaem Copper Industries Company – Iran

info@qaemcopper.com www.qaemcopper.com

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Tube Products International April 2010

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