The BEECO® GV-GXG-OSY Series is a Grooved x Grooved resilient seated OS&Y (Outside Screw and Yoke) gate valve. All grooved dimensions comply with AWWA C606 Standard. The valve complies with AWWA C515 Standard. The body, bonnet, and wedge (disc) are of high strength ductile-iron, ASTM A536, Grade 65-45-12. The wedge is encapsulated with EPDM rubber. The stem and bolts are of stainless steel.