The NIBCO® UL/FM Angle valves are used in many places on a fire protection system. The connection points are for the firefighters to tap into the water supply anywhere in a building. Overview   175 PSI Pressure Restricting 2.5″ NPT x 2.5″ NPT Female Outlet, Brass or 1.5″ NPT x 1.5″ NPT Female Outlet, Brass Forged Brass with Cap and Chain or Polished Chrome Adjustable Stops to Control Discharge Pressure UL Listed for Indoor and Outdoor Service FM Approved