- Pressure Reducing (controlled Pressure) Hydrant Valve - Made of Copper Alloy (is:318-ltb Gr.-2)with 63mm Flanged Inlet Drilled as per Ansi B 16.5 Class 150 & Integrated 63mm Size Female Instantaneous Outlet, Brass Spindle, Cast Iron Hand Wheel,Duly Hydro-tested At 21 Bar Pressure, Dully Painted – Fire Red Colour.