Anvil 0318908803 Malleable Iron Hex Bushing Class 125 4 in Male NPT 3 in Female NPT 175 psi 150 Degrees F

Anvil Class 125 Hex Bushing 4 in Male NPT

The Anvil 0318908803 is a malleable iron hex bushing designed for Schedule 40 pipe systems. It provides a straight-threaded transition between different pipe diameters in plumbing installations. The black cast iron construction suits standard drain component applications. Rated for 175 psi at 150 degrees F maximum operating pressure.

For Plumbers Joining 4 in Male to 3 in Female NPT

This fitting suits installers who need to reduce a 4 inch male NPT line down to a 3 inch female NPT connection using a single Class 125 component. It is not for systems requiring a higher pressure class than 125 or a temperature rating above 150 degrees F. Buyers needing a different thread type or a larger size reduction should look at other fittings.

Class 125 Rating Limits Pressure to 175 psi at 150

The single specification that decides fit is the Class 125 designation combined with the 175 psi at 150 degrees F maximum operating pressure. If your system design calls for a higher pressure class or a higher temperature limit, this bushing will not meet the requirement. Verify the class and pressure rating against your engineering plans before purchase.