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Piping Systems & Welding

Single Wall Industrial Plastic Piping Systems

Proline® Pigmented Polypropylene (PP) Piping System

Proline® piping systems are made from the highest quality copolymer polypropylene resins. Proline® is suitable for a wide range of applications with a pH range from 1 to 14 and at temperatures over 140°F. Proline® copolymer resins exhibit better properties than homopolymer polypropylene. As such, Proline® is the best choice for process waste drains that typically see varying media and temperatures. Proline® uses fusion joining technology with socket, butt and electrofusion available to meet your application requirements.

Asahi/America offers a full range of molded fittings and fabricated specialty drainage fittings such as wyes, p-traps, laterals.



Data Sheet


Ideal Applications Include:

pH range 1-14, process chemical and waste, caustic, acids, industrial water

Supply Range

Pipe and Fittings:

  • 20 - 500mm (1/2" - 20") SDR11, 150psi
  • 110 - 1200mm (3" - 48") SDR33, 45psi
  • Other sizes and SDRs available up to 1400mm (55")



  • The PRO150 system is rated at 150 psi at 68º F for pressurized systems.
  • PRO150 is available from 3/8" (16mm) to 48" (1200mm).
  • PRO150 can be joined using butt, socket or electrofusion fittings.
  • NSF 61-G certified


  • The PRO45 system is rated at 45psi at 68º F.
  • PRO45 is available in both pressure and drainage pattern fittings.
  • PRO45 is available from 4" (110mm) up to 55" (1400mm).
  • PRO45 is joined via butt fusion.
  • NSF 61-G certified