Product Details
The 4" T-337DI-G ductile iron wafer type butterfly valve features Buna seats, a ductile iron disc, and a gear-operated epoxy coated wafer body that facilitates easy positioning between flanges. Its extended neck is designed to accommodate most piping insulation applications, and it supports bi-directional flow. The valve is 100% factory tested, ensuring reliability, while its rigid, phenolic-backed seat provides a positive, bubble-tight shutoff. Additionally, the raised seat face eliminates the need for companion flange gaskets. Key specifications include a cold working pressure (CWP) of 200 PSI and availability of special order disc options such as T-335DI and T-337DI, both made from ductile iron. Flange connection features conform to ANSI class 125/150 flange dimensions. This product is manufactured in an ISO accredited facility and complies with standards including MSS SP-67, API 609, AWWA C504, and EN 593.
