CPVC Fire Sprinkler Systems | GB/T 5135.19 Certified & UL 1821 Listed

Engineered for High-Rise Buildings, Data Centers & Life Safety Applications

Revolutionary Fire Protection Performance

As a chlorine-based flame retardant piping solution, CPVC fire sprinkler systems outperform traditional materials with 70% longer service life and zero maintenance costs:

UL 1821/FM 1630 Certified - 0 fuel contribution, Class A flame spread (ASTM E84)
 2X Pressure Integrity - Validated through 12-month hydrostatic testing at 2.5x working pressure
NSF 61/LEED Compliant - Made from seawater salts, 100% recyclable with 50-year lifespan
C=150 Hydraulic Efficiency - 22% lower friction loss vs galvanized pipes (Hazen-Williams系数)

CPVC vs Competing Materials: Critical Fire Safety Metrics

*MIC=Microbiologically Influenced Corrosion | LCC=Life Cycle Cost

Certification Portfolio

>Fire Safety: GB/T 5135.19, ISO 6944 (120min fire resistance)
>Material Compliance: NSF 61 Section 9 (potable water), FM 1630 Approval
>Design Standards: GB50084-2017 & NFPA 13 Dual Compliance
>Sustainability: LEED v4.1 MRc2 Credit, RoHS 2.0 Directive

LiXing Tech's Engineering SupportCode-Driven Design - Free hydraulic calculations per NFPA 13 Density/Area Method

1. Seismic Solutions - ISO 16134 Certified earthquake-resistant joint systems

2. Retrofit Expertise - UL-approved transition fittings for hybrid metal/CPVC systems

3. Third-Party Inspection - Provide FM Global-compliant installation documentation

Applications Across Risk Categories

• Light Hazard: Offices, Schools, Hotels (per NFPA 13 Chap.12)

• Ordinary Hazard I: Automotive Workshops, Laundries

• Special Occupancies: Data Centers (TIA-942 Rated), Clean Rooms

SEO-Optimized Technical Keywords

Core Terms:

• Chlorinated CPVC fire sprinklers

• GB/T 5135.19 compliant pipes

• UL 1821 listed sprinkler system

Long-Tail Phrases:

• Non-corrosive fire protection piping

• High-rise building sprinkler solutions

• FM Approved CPVC plumbing

Certification Anchors:

• ISO 6944 fire tested pipes

• NSF 61 Section 9 certification

• NFPA 13 & GB50084 dual standard

  CPVC sprinkler fire pipe size
  Nominal diameter		Average outer diameter of pipeline/OD		Average inner diameter of pipeline/ID
  英寸 Inches	毫米 mm	英寸 Inches	毫米 mm	英寸 Inches	毫米 mm
  ¾	20.0	1.050	26.7	0.874	22.2
  1	25.0	1.315	33.4	1.101	28.0
  1 ¼	32.0	1.660	42.2	1.394	35.4
  1½	40.0	1.900	48.3	1.5898	40.6
  2	50.0	2.375	60.3	2.003	50.9
  2½	65.0	2.875	73.0	2.423	61.5
  3	80.0	3.500	88.9	2.950	75.0

  CPVC is a new type of engineering plastic with broad application prospects. Resin is made by chlorination modification of polyvinyl chloride (PVC) resin and is a new type of engineering plastic. This product is a white or light yellow, odorless, non-toxic, loose particle or powder. After chlorination, the irregularity and polarity of the molecular bonds in PVC resin increase, resulting in increased solubility and chemical stability of the resin, thereby improving its heat resistance, acid resistance, alkali resistance, salt resistance, and corrosion resistance to oxidants. The mechanical properties of the resin have been improved in terms of thermal deformation temperature. The chlorine content has increased from 56.7% to 63-69%, and the Vicat softening temperature has increased from 72-82 ℃ to 90-125 ℃. The maximum operating temperature can reach 110 ℃, and the long-term operating temperature is 95 ℃.

  Widely used in civil domestic water supply, hot water systems, pipeline direct drinking water systems, commercial pure water systems, deionized water systems for electronic industry, pure water systems for medical dialysis, cold and hot water systems for air conditioning, and other fields. In North America, PVC-C pipes in the above-mentioned fields have a market share of 30%. In recent years, civil building water supply systems, especially hot water systems, have been increasingly applied in China. The CPVC sprinkler pipe system officially entered the practical stage in the United States in 1986 and has been successfully applied for more than 20 years. It has obtained relevant testing reports from Tianjin Fire Research Institute and has also obtained certifications from UL (Underwriters Laboratories of America), ULC (Underwriters Laboratories of Canada), FM (Factory Mutual Insurance Institute of America), LPC (Property Loss Prevention Committee of the United Kingdom) and other relevant fire authorities.

  CPVC fire pipes have anti ignition properties, flame retardancy, resistance to exposure and combustion, and do not cause adverse effects on the body after combustion. They also have a smooth surface, low resistance loss, energy saving, and basically no microbial erosion. The installation process is fast, reliable, and has strong pressure resistance. They are suitable for light and medium hazard level I buildings in GB50084. However, it should be noted that PVC-C fire pipes are only suitable for wet automatic sprinkler systems and are strictly prohibited from being used to transport compressed air or other gases.

  CPVC hot and cold water pipes are made of seawater salt, which is environmentally friendly; The pipeline has strong chlorine resistance, so the water quality is hygienic and healthy. The pipeline system is oxygen impermeable, so it will not corrode due to oxidation. It is not only more corrosion-resistant than metal pipelines, but also more corrosion-resistant than other plastic pipelines such as PPR. It can withstand strong concentrated sulfuric acid and strong alkali corrosion; Long term heat resistance of 93 ℃ and low temperature of -26 ℃ can be achieved without any problem. The pipeline system for hot water can be buried in the cement cushion layer, while the long-term temperature resistance of PPR cannot exceed 70 ℃

  CPVC power pipes are mainly made of PVC-C resin, which has excellent heat resistance and insulation properties. CPVC products are currently recognized as green and environmentally friendly products, and their excellent physical and chemical properties are increasingly valued by the industry.

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