Open/Close ValveHand Loaded/Operated or Dome/Air OperatedHand Operated Maximum Rated Pressure 6000 psi Inlet Port Size 1/4 in. MNPT Outlet Port Size 1/4 in. FNPT Maximum Differential Pressure 6000 psi Outlet Pressure Rating 6000 psi Flow Coefficient (Cv) 0.05 (equals 0.07 in. orifice) Leakage Bubble Tight Minimum Temperature -15 �F Body Material Anodized Aluminum Internal Materials Brass Stainless Seal Materials Kel-F Viton Weight 260 g Overall Length 4.5 Inch Hex Diameter 1.38 Inch Repair Kit/Service Items 816-16