UL evaluates products such as hydrants, indicator posts, meters, and underground ductile iron and PVC pipes and fittings to determine their suitability for use in water-based fire suppression systems.
Pipe and fittings are subjected to performance tests, such as leakage and hydrostatic pressure. PVC pipe is also subjected to deflection, impact and flattening tests. Hydrants and indicator posts are operated, cycled and pressure tested.
We test fire main equipment according to UL-developed safety and performance standards. This equipment is intended to be installed and used in accordance with the standards developed by the National Fire Protection Association.