Red Thread HP Piping

Red Thread HP piping systems are an economical alternative to carbon steel in mild chemical and water services. Its lightweight, superior flow and ease of installation provide for lower life-cycle costs.


Red Thread HP pipe is a filament wound product using epoxy resins and continuous glass filaments with a resin rich interior surface. Its major advantages are long service life, light weight and corrosion resistance. Pipe and fittings are available in 2” through 24” diameters with pressure ratings up to 450 psig static at a maximum operating temperature of 210ºF. Diameters up to 36” are available upon request. Compatible epoxy fittings are manufactured with the same chemical/temperature capabilities as the pipe. Depending on the particular part and size, fittings will be compression molded, contact molded, hand fabricated or filament wound.

Features / Benefits

There are many advantages to choosing Red Thread HP pipe. For example, when considering total installed cost, Red Thread II piping provides significant savings due to its light weight and easy installation features. No heavy handling equipment is required, and the load the pipe adds to a structure is minimal compared to steel, black iron, copper, and stainless steel. For example, 4” pipe weighs only 1.2 lbs. per foot compared to 5.6 lbs. for Schedule 10 stainless.

Significant features that make Red Thread HP FM Fire Protection piping systems ideal:

  • Internal and external corrosion resistance.
  • Improved flow characteristics compared to traditional materials.
  • Light weight and ease of installation.
  • Pressure ratings up to 200 psig.


Size Range:

Inner Corrosion Barrier:
Resin Rich

Pressure Ratings:
225-450 psig

Filament wound with amine cured epoxy resins and fiberglass roving

Temperature Range:
Up to 210°F / 100°C

T.A.B.® (Threaded and Bonded) or Bell and Spigot

Chemical Service:
Saltwater, CO2, crude oil, natural gas, light chemical: salts, solvents and pH 2-13 solutions


Size Range:
4″ – 24″

Inner Corrosion Barrier:
Resin Rich

Pressure Ratings:
Up to 200 psig

T.A.B. (Threaded and Bonded) or Bell and Spigot

Chemical Service:
Underground fire protection systems


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1410 Zagorje ob Savi, Slovenia


Tel.: +386 31 364 610


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