The Plastics Pipe Institute has created the Polypropylene Pressure Pipe Steering Committee within its Building and Construction Division. The new committee will entirely focus on PP-R and PP-RCT pressure and their modified crystallinity and temperature resistance.
Both types of pipes are approved for potable hot and cold water plumbing systems, hydronic heating and cooling systems and other applications. PP-R and PP-RCT pipe is available in metric sizes ranging from 16 to 355 millimeters and IPS schedule 80 sizes ranging from 1/2 to 6 inches. The minimum hydrostatic pressure ratings are 160 psi at 73° F and 100 psi at 180° for plumbing applications. Although, pipes with different dimension ratios can have higher or lower pressure ratings, as needed by the customer.