BlazeMaster Fire Sprinkler System


GF Harvel CPVC Fire Sprinkler Products are manufactured from specialty thermoplastics, known chemically as Post-Chlorinated Polyvinyl Chloride (CPVC). GF Harvel CPVC Fire Sprinkler products are designed specifically for fire sprinkler systems, and the material’s characteristics and the pipe’s dimensions provide unique advantages in sprinkler installations. GF Harvel CPVC Fire Sprinkler Products provide superior hydraulics, ease of joining, increased hanger spacing in comparison to other plastics, is assembled with readily available, inexpensive tools, and is based on a product with a continuous service history of more than 40 years.

Corrosion resistant fire sprinkler pipe, IPS sizes 3/4” through 3”, for use in wet automatic fire sprinkler systems. When installed in accordance with GF Harvel’s Installation Instructions, this pipe is Listed by Underwriters Laboratories (UL) for use in: Light Hazard Occupancies as defined in the Standard for Installation of Sprinkler systems (NFPA 13); Residential Occupancies up to and including four stories in height (NFPA 13R); and Residential Occupancies as defined in the Standard for Sprinkler Systems in One and Two Family Dwellings and Mobile Homes (NFPA 13D). GF Harvel BlazeMaster pipe is UL Listed for use in Return Air Plenums (NFPA 90A), System Risers per NFPA 13 Light Hazard, 13R and 13D, Exposed installations, Garages per NFPA 13R, and for use as Underground Fire Service Mains (NFPA 24) when installed in accordance with GF Harvel CPVC Fire Sprinkler Pipe Installation Instructions.

Product Overview

Technical Data:

Size Range:        

  • 3/4" -3"

Maximum Pressure Rating:

  • 175 psi

Max Operating Temperature:

  • 150°F

Joining Technology:

  • Solvent (Cement) Weld
  • NPT Threaded Connections
  • Mechanical Connections

Standard Ratings:

  • ASTM D1784
  • ASTM F442
  • NFPA 13
  • NFPA 13R & 13D
  • NFPA 90A
  • NFPA 24
  • UL1821
  • FM1635


  • Type IV, Grade 1 Chlorinated Polyvinyl Chloride (CPVC) with Cell Classification 23447 per ASTM D1784



All CPVC fire sprinkler pipe shall be manufactured from a Type IV, Grade I Chlorinated Polyvinyl Chloride (CPVC) compound with a Cell Classification of 23547 per ASTM D1784. Pipe shall be manufactured in strict compliance with ASTM F442 to SDR 13.5 dimensions, consistently meeting the Quality Assurance test requirements of this standard with regard to material, workmanship, burst pressure, flattening, and extrusion quality. All CPVC fire sprinkler pipe shall be Listed by Underwriters Laboratories for wet pipe systems, and shall carry a rated working pressure of 175 psi @ 150°F. All CPVC fire sprinkler pipe shall be installed in accordance with Georg Fischer Harvel LLC CPVC Fire Sprinkler Piping Products Installation Instructions. National Fire Protection Association (NFPA) Standards 13, 13D, and 13R must be referenced for design and installation requirements in conjunction with the Installation Instructions. All CPVC fire sprinkler pipe shall be manufactured in the USA by an ISO 9001 certified manufacturer and shall be FM and LPCB approved. All CPVC fire sprinkler pipe shall be packaged immediately after its manufacture to prevent damage and shall be stored indoors after production, at the manufacturing site, until shipped from factory. This pipe shall bear the logo of the listing agencies, and shall carry the National Sanitation Foundation (NSF) seal of approval for potable water applications. All CPVC fire sprinkler pipe shall be GF Harvel BlazeMaster® pipe as manufactured by Georg Fischer Harvel LLC.