‌Fire Hydrant Fitting，UL/FM certified (Union, 1½ Inch)

Fire Union 1½" NPT inside malleable iron Union - FM certified & UL certified

• 1½" NPT Thread Connection – Compatible with American standard piping systems for easy installation
• It is characterized by its resistance to water flow impact, reliable connection, strong corrosion resistance, and good corrosion resistance to non-chlorinated acids, dilute nitric acid, alkalis, and salt solutions
• The control of the included angle of the pipe thread axis is the strictest, resulting in the best air tightness, the highest inspection cost, and the lowest installation cost
• The weight is heavier than that of other similar brands. The appearance has the best flatness, with a smooth and flat galvanized surface. Due to the fine and dense molding sand, there are no large pits, sand holes, or residue marks on the surface
• During the casting process, pipe fittings may develop defects such as slag inclusion, porosity, and shrinkage, which can lead to local leakage. To ensure quality, each pipe fitting should undergo an air tightness test.