PPI TN-71, “Flanges and Flange Adapters for Polypropylene (PP-R & PP-RCT) Piping Systems”, is now available. IRVING, TX — The Plastics Pipe Institute’s (PPI) Building & Construction Division's new ...

IRVING, TX — The Plastics Pipe Institute, Inc. (PPI) has announced the publication of the new ASTM F3722 Standard Practice for Heat Fusion Joining of Polypropylene (PP) Pipe and Fittings by ASTM ...

It does supply PP pipe for some special outdoor use as in heating, venting and air conditioning systems. “We are more highly engineered than PVC pipe and get a better joint through fusion ...

In the HVAC contracting world, polypropylene pipe is just such an exception. While it’s often viewed as “new” and lumped in with other plastics, it’s in fact been used around the world for nearly 40 ...

Those customers include civil contractors looking to plastic materials to update and ... need for both precast and high performing HDPE/PP pipe, we are constructing what we believe will be one ...

Andrew Whelton, an assistant professor in Purdue's Lyles School of Civil Engineering and Division of Environmental and Ecological Engineering, is leading research into the effects plastic pipes have ...