Product Details
The 12" T-303 OS & Y cast iron gate valve features an outside-screw-and-yoke stem design that provides a visual reference to the disc wedge position and offers enhanced durability compared to non-rising stem designs, as the stem threads are external and not exposed to media flow. This valve includes Class 125/150 flange-type end connections and utilizes an IBBM design, which consists of an iron body with a bronze mount, including bronze seat and wedge sealing rings. The solid wedge ensures a positive drip-tight closure, while the durable cast iron construction resists pipeline stresses and distortion. All external surfaces are primed and dual-coat painted for corrosion resistance, and the full-flow waterways minimize pressure drop. The working pressure for non-shock (PSI) is 200 PSI for cold working pressure (CWP) and 125 PSI for saturated steam (WSP) up to 450°F. The valve's face-to-face dimensions conform to ANSI/ASME B16.10 in accordance with interchangeability requirements, and the flanged end connections conform to ANSI/ASME B16.1 class 125/150. Additionally, the product complies with MSS SP-70 and is manufactured in an ISO-9002 accredited facility.








