Product Details
The 4" T-337DI ductile iron wafer type butterfly valve features Buna seats, a ductile iron disc, and a heavy-duty lockable ten-position handle, allowing for versatile operation. The epoxy-coated wafer body facilitates easy positioning between flanges, while the extended neck accommodates most piping insulation applications. This valve supports bi-directional flow and is 100% factory tested to ensure reliability. The rigid, phenolic-backed seat ensures a positive, bubble-tight shutoff, and the raised seat face negates the need for companion flange gaskets. The valve has a cold working pressure (CWP) of 200 PSI and offers special order disc options, including T-335DI and T-337DI ductile iron discs. The flange connection conforms to ANSI Class 125/150 dimensions, and it is manufactured in an ISO accredited facility in accordance with MSS SP-67, API 609, AWWA C504, and EN 593 standards.
