Plastic Piping in Refrigeration Systems

Refrigeration systems place demanding requirements on the piping system. Not only is the primary piping system critical to the efficient, reliable operation of the refrigeration plant, but the secondary refrigerant fluid system also plays a critical role in optimizing running costs, energy efficiency and keeping maintenance to an absolute minimum. Choosing the correct material for both piping systems is important for optimizing plant costs and performance. Often the same piping material is used for the secondary system as for the primary system. In breweries, wineries, cold storage facilities and other below-freezing applications, this means that copper or steel typically is used for the whole system. This can be an expensive option if there are long runs of pipe involved. However, the only alternatives for secondary piping have been copper, steel or stainless steel, all of which have potential drawbacks. Some plants have even used polyvinyl chloride (PVC), which has a low-temperature limit of 0°C. At this temperature it becomes brittle – highly unsuitable for glycol (anti-freeze) solutions, which have a temperature of -8 to -2°C. Anyone who works with steel, copper or PVC piping is familiar with the problems experienced at below-freezing temperatures. The insulation used on these pipes often absorbs water from the atmosphere, which negatively affects the insulation and reduces the system efficiency by increasing operating costs. Water absorption also can cause ice build-up, which will crack PVC pipes and cause corrosion on metal pipes. These problems lead to excessive maintenance and downtime. Within the last 15 years, ABS (acrylonitrile butadiene styrene) piping materials have been developed that provide a durable, long-lasting alternative in these applications. Retrofitting...

FAQ – Frequently Asked Questions

There are questions that are asked regularly to our Sales Team. So we thought a good idea would be to post some of the questions which are often asked. We will only post a couple at time. If you have a question which you would like to know the answer; please comment on our blog and we will reply. Question & Answer 1 – What do you need to use to clean PE pipe & fittings before you Electrofusion weld? Answer= you need to use the recommended isopropyl or ethanol alcohol tissue wipes with a minimum concentration of 85% alcohol. Question & Answer 2 – Can you speed up the cooling time on EF & butt welding? Answer = No. The required and recommended cooling time is critical for the formation of a perfect...