Product Details
The 4" 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 enhances 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 is built with an IBBM design, featuring an iron body with bronze mount, bronze seat, and wedge sealing rings. It incorporates a solid wedge that 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 are designed to minimize pressure drop. The valve has a working pressure of 200 PSI for cold working pressure (CWP) and 125 PSI for saturated steam (WSP) at temperatures up to 450°F. The face-to-face dimensions conform to ANSI/ASME B16.10 standards, and the flanged end connections adhere to ANSI/ASME B16.1 Class 125/150. Additionally, it conforms to MSS SP-70 and is manufactured in an ISO-9002 accredited facility.
