Mars 69029102018 Concentric Reducer 4x3 in 125 Lb Ci Flanged

Product Description

The MARS 69029102018 is a 4 x 3 inch concentric reducer fitting with a 125-pound cast iron flanged configuration. Concentric reducers connect two pipes of different diameters along a shared centerline, making them the standard choice when maintaining pipe alignment is critical to system performance. This fitting is used in piping systems where a smooth, centered transition between pipe sizes is required. Licensed plumbers and pipefitters install this type of fitting during new construction and retrofit work on commercial and industrial fluid systems.

This concentric reducer is suited for use in water distribution, hydronic heating, and general industrial piping systems that operate within the pressure rating of 125-pound flanged cast iron fittings. The flanged ends allow for bolted, gasketed connections that can be disassembled for inspection or service. It is appropriate for above-grade commercial piping installations where flanged connections are specified by the designer or required by code.

Key Features

• Concentric design maintains shared centerline between 4 inch and 3 inch pipe runs
• 125-pound flanged ends for bolted, gasketed connections
• Cast iron construction suitable for commercial and industrial piping service
• Flanged configuration allows disassembly for system maintenance or inspection
• Reducer style transitions pipe diameter without offsetting pipe centerline

Compatibility

Designed as an OEM-style replacement or new-installation fitting for 125-pound cast iron flanged piping systems with a 4 inch inlet and 3 inch outlet.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with applicable plumbing and mechanical codes, including the IPC where adopted. Shut off system flow and relieve line pressure before breaking any flanged connection. Use appropriate full-face or ring gaskets rated for the service fluid and pressure, and torque flange bolts evenly in a cross pattern following gasket manufacturer guidelines. Do not use pipe dope or thread sealant on flanged faces.