Sprinkler piping systems
Properly functioning fire-safety systems are vital to protect lives and property. That includes the systems' pipes and fittings as much as the sprinklers themselves.
UL is your one-stop provider for research, testing, certification and standards development for water-based fire suppression system piping products.
UL evaluates fittings, including adjustable drop nipples, flexible sprinkler hose fittings, pipes and pipe hanger equipment, to determine their suitability and durability for use in water-based fire suppression system piping. Pipe and fitting assemblies are subjected to performance tests such as leakage, hydrostatic pressure, low temperature and bending. Thermoplastic pipe and fitting assemblies are also subjected to extended-term hydrostatic pressure tests and assembling tests. Systems intended for exposed installations are subjected to fire exposure tests. Pipe hanger devices are subjected to pull (load) tests.
Test Standards
UL Standards cover Listing programs for the following types of water-based fire suppression system piping:
- UL 203, Pipe Hanger Equipment for Fire-Protection Service
- UL 213, Rubber Gasketed Fittings for Fire-Protection Service
- UL 852, Metallic Sprinkler Pipe for Fire-Protection Service
- UL 1474, Adjustable Drop Nipples for Fire-Protection Service
- UL 1821, Thermoplastic Sprinkler Pipe and Fittings for Fire-Protection Service
Fire sprinkler systems must be designed and installed in accordance with Installation of Sprinkler Systems, NFPA 13, NFPA 13D and/or NFPA 13R. UL is also authorized to certify water-based fire suppression system piping products to Canadian standards.
The UL advantage
UL has been a trusted leader in testing products and writing safety standards for more than 100 years. Its testing and certification services offer several advantages to both manufacturers and users of fire suppression equipment, including product listing in an appropriate UL Product Directory. These directories contain a list of companies that have demonstrated compliance with UL requirements and applicable standards and are authorized to use a UL Mark. The directories are considered an invaluable resource by thousands of regulatory authorities, building owners and insurance companies, and are available in hard copy or online.
UL can also help reduce time-to-market by offering efficient and flexible services from the industry leader in fire-safety certification. Because UL offers comprehensive, state-of-the-art testing facilities and a highly experienced technical staff with extensive code knowledge, the UL Mark is immediately recognized and respected by professionals in fire safety around the world.
