Image by www78
Originally founded as David Giles Company in 1882, this was the South’s first cast pit plant. It consolidated with 11 other companies in 1899 to form United States Cast Iron Pipe and Foundry Company. The factory closed in 2006 and is currently in the process of being dismantled.
Chattanooga, Tennessee
The Most Unusual Pipe Arrangement
Image by urbanworkbench
And the winner for "most unusual pipe arrange" in the Civil Works category goes to this photo taken in Rossland BC during recent watermain works
The application of resistance pressure welding method of thin-walled cu-al pipe fittings has brought about revolutionary breakthrough to the connection technology for air conditioner pipes. Besides, it has marked the maturity in the technology of connecting the copper pipe and aluminum fittings. From now on, the third-generation copper and aluminum connected fittings can well be used in air-conditioners, which can even surpass the performance of copper pipes or aluminum fittings.According to the experts in copper-aluminum pipe connection technique, the third-generation cooper-aluminum connected pipes have the following advantages:Advantage reflected in welding processing: Thin-wall copper-aluminum pipes welding technique is viewed as a technical difficulty worldwide. This technique is very applicable in industrial manufacturing and even plays a key role in connecting copper pipe and aluminum fittings of air-conditioner. After tens of thousands of failed tests by experts, the new welding method ? resistance pressure welding became reality in 2003. This welding technique can realize the incorporation of copper and aluminum atoms, resulting in very firm welding joint. After being welded, the pipe can maintain its property even after several mechanical tests of stretching, bending or squeezing. Third-generation copper-aluminum connected pipes made via this kind of technique usually have weld strength superior to that of copper and aluminum pipes alone.Advantage in its life expectancy: As far as the inner wall of aluminum fittings, it will never be corroded inside because the non-refrigerant does not contain any water. The aluminum fittings have been used in air-conditioning industry for over 20 years, during which we find no corrosion phenomenon inside the aluminum fittings of the 0.1 billion sets of refrigerators made. Judging from the exterior of copper-aluminum pipes, the use of cross-linked polyethylene for anti-corrosion has ensured the perfect insulation, preventing it from being corroded by moisture and damped air. Thus, the pipe can last for 20-year expectancy. If the copper pipes are exposed to moisture or air, they may be corroded in 20 years. In this sense, we can safely conclude that the life expectancy of copper-aluminum pipes is longer than that of copper pipes.Advantage in its energy efficiency: The connecting pipes of air-conditioning indoor unit and exterior unit with good heat insulation can always be energy efficient. Whether we use copper pipes or aluminum pipes as connected fittings, we need to wrap a layer of casting pipe over the metal pipe for heat preservation, which can ensure great effect in decreasing the loss of refrigeration capacity. Since the conductivity factor of copper is 1.8 times greater than that of aluminum, it’s wise to choose copper-aluminum connected pipe so as to improve the energy efficiency.Now we come to a conclusion that copper-aluminum pipes will be widely chosen in air-conditioning industry. This is decided by its unique advantages in its property.
Tim Carter, of AsktheBuilder.com, shows the easiest way to install a leak-free faucet at home. Sign up NOW for Tim’s FREE weekly newsletter at go.askthebuilder.com
Image by www78
Originally founded as David Giles Company in 1882, this was the South’s first cast pit plant. It consolidated with 11 other companies in 1899 to form United States Cast Iron Pipe and Foundry Company. The factory closed in 2006 and is currently in the process of being dismantled.
Chattanooga, Tennessee
