What type of joints can PE-RT tubing use as per the provided regulations?

PE-RT (polyethylene of raised temperature) tubing is specifically designed for applications in heating systems, such as hydronic heating. The regulations and standards governing the use of PE-RT tubing indicate that it is compatible with hydronic fittings, which are designed to work with flexible plastic piping systems like PE-RT. These fittings allow for secure connections that can handle the thermal expansion and contraction associated with heating systems, making them ideal for such applications.

Hydronic fittings are typically made from materials that are resistant to the corrosive effects of heat and water, ensuring a reliable seal and compatibility with the properties of PE-RT tubing. This compatibility is essential for maintaining system integrity and efficiency in heating applications.

Other types of fittings, such as copper, plastic, or steel, may not be suitable or regulated for use with PE-RT tubing, primarily due to differences in heat expansion properties, potential corrosion, or lack of appropriate sealing mechanisms. Therefore, selecting hydronic fittings assures compliance with the applicable mechanical codes and promotes the longevity and functionality of the piping system.