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Push-together piping saves installation time and cost

Push-together piping saves installation time and cost Piping is often overlooked as a component but can have a huge influence on the efficiency, performance and lifespan of an air system. We look at an alternative to standard galvanised steel


Atlas Copco Compressors reports that its AIRnet piping system is being enhanced with the addition of the Pre Fit (PF) Series, a family of products that are pre-torqued for push-together assembly. The PF Series, which will be available in 20mm to 50mm sizes, does not require heavy tools and reduces installation time by up to 85 percent.

Building on the success of the existing AIRnet range, the PF Series uses the same lightweight and durable aluminium piping, together with aluminium and polymer fittings, to make installation simpler. Being five times lighter than conventional galvanised steel piping and avoiding the need to have cumbersome threading, welding and lathe machines on site for fitting, the PF Series can be installed by a single technician, reducing labour costs by as much as 20 percent.

The PF series, manufactured within Atlas Copco's new production facility in Belgium, offers the same benefits to the end-user as the rest of the AIRnet range, being highly efficient in the way it delivers clean compressed air, as well as nitrogen gas and vacuum functions. The pipes and connections are resistant to corrosion, mechanical shocks, and thermal variations, while minimising pressure drop and leaks thanks to low-friction surfaces and seamless fittings. This ensures a longer lifespan, reduces stress upon the compressor unit itself and protects the downstream manufacturing process.  

AIRnet's low-friction surfaces and seamless fittings significantly reduce the total cost of ownership by delivering air more efficiently. James Houseman, product specialist at Atlas Copco Compressors, says: "A company may have a highly efficient compressor, but its performance can be undermined without a strong system of piping. For example, a pressure drop of just one bar requires the compressor to use seven percent more energy. That's why we urge customers to consider not just the compressor but the complete system. The new AIRnet range is designed and manufactured to remove any concerns about corrosion, leakages or loss of pressure. Yet having such an advanced solution does not mean extra work for installers; in fact, it is quite the opposite because AIRnet has unique features to speed up and simplify the installation process. There's no need for the threading and welding machines that had to be carried around in the past. In this way, both end-users and installers can benefit from the new AIRnet range."  

Installers follow a simple five-step process to assemble the PF Series: cut; debur; mark; lubricate; and push. Once the piping is connected, there are torque indicators to provide a visible assurance of accuracy and safety.

Included in the PF series are the 40mm and 50mm diameter sizes, with the 20mm and 25mm due to have PF fittings by mid-2014. The 63mm, 80mm, 100mm and proposed 158mm sizes will retain a classic fitting.  

An advantage of the AIRnet range is that the classic and PF fittings are interchangeable, while the new Adaptor Union kit allows connectivity with an existing BSP/NPT threaded system. Additionally the breadth of pressures the PF series allows has been expanded, from a minimum of 0.013 bar to 16 bar, compared with 0.13 to 13 bar in the classic range. Similarly, the temperature range has been expanded in the PF series, which means the piping can be operational from -20°C to +80°C, compared with -4°C to +70°C. The wide scope of requirements that can be met by the PF series is further extended with the availability of an optional conductivity strip for ATEX applications in hazardous environments, which is the first of its kind in the market.  

To help with design and quoting for a new system, the AIRnet support tools provide calculations of pressure drop and an automated list of required products. The reliability of the AIRnet range is backed by a 10-year guarantee.
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Atlas Copco Compressors

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