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Piping Systems & Welding

Thermoplastic Corrosion Resistant Commercial Piping Systems

Asahi/America's thermoplastic commercial thermoplastic piping systems are designed for the toughest commercial applications. We feature the Asahitec™ PP-RCT plumbing and HVAC piping system. In addition, our Air-Pro® is the only HDPE piping system approved for use and warranted, for compressed air applications. Air-Pro® is CAL-OSHA listed.

Our application engineers are ready to assist you in selecting the perfect system for your application. Along with our network of national and international distributors, we are available to help with your design projects, offer installation tips and more.

Click here to download our Building Services Piping Systems one sheet

Asahitec™ PP-RCT Piping Systems



Potable Water, HVAC – Hot Water and Chilled Water, Food and Beverage Grade Water, Hydronics, Sports Stadiums and Arenas, Commercial Buildings, Residential Buildings, Institutional Buildings, Schools and Universities, Government Buildings, Hospitals, Hotels and Apartments

Pipe and Fittings:

Standard: 20mm to 500mm (1/2" - 20")



Type-21AT ball valves
Materials: PP/EPDM  Body with PP-RCT connectors

Type-57AT butterfly valves
Materials: PP/EPDM

Type-14 True Union Diaphragm Valves
Material: PP Bonnet/EP Diaphragm with PP-RCT connectors

Air-Pro® Compressed Air Piping System



Above and below ground compressed air, inert or non-reactive gases

Pipes & Fittings:

  • 20 - 110mm (1/2" - 4") SDR 7.4 / 230psi
  • 160 - 315mm (6" - 12") SDR 11 / 150psi