... .10 2) Flanges according to ANSI B16.5 Valve Type:Forged Steel Choke Valve, Forged Steel ball Valve, Forged Steel Gate Valve, Y Type Steel Forged Valve.Size:1/4”,3/8” ,1/2 ... B16.5 Other Fatures:1) Outside screw and yoke (OS & Y) 2) Bolted bonnet with spiral-wound gasket retained type 3 ... ) Body bonnet gasket ring joint type 7) Full port Pictures: Forged steel Y type valve