Product Details
The 4" T-337AB ductile iron wafer butterfly valve features an aluminum bronze disc and a heavy-duty lockable ten-position lever handle, designed for easy positioning between flanges due to its Buna epoxy coated wafer body. With an extended neck, it is suitable for most piping insulation applications and allows for bi-directional flow. This valve is 100% factory tested to ensure reliability, and it includes a rigid, phenolic-backed seat that guarantees positive, bubble-tight shutoff while the raised seat face eliminates the need for companion flange gaskets. The cold working pressure (CWP) is rated at a maximum of 200 PSI, and it is compatible with various media types other than steam up to 180° F at 200 PSI or less. The flange connection features of the valve's body conform to ANSI Class 125/150 flange dimensions. It is manufactured in an ISO accredited facility and in compliance with several standards, including MSS SP-67, API 609, AWWA C504, and EN 593.
