Value Collection MDB240 80X50 Reducing Coupling 3x2 in

Product Description

The VALUE COLLECTION MDB240 80X50 is a threaded reducing coupling manufactured from malleable iron with a black finish. It connects pipe runs of two different diameters, transitioning a 3-inch line down to a 2-inch line in a single fitting. Rated Class 150, this coupling is appropriate for low-pressure piping systems in gas, air, and water distribution applications. The threaded connection type follows GB/T 7306.2 and ISO 7/1 standards, making it compatible with standard tapered pipe thread configurations. Licensed plumbers and pipefitters typically select this fitting for branch connections, system retrofits, and new construction where a reduction in pipe diameter is required.

This reducing coupling is suited for residential and light commercial piping installations. Common applications include natural gas distribution lines, compressed air systems, and water supply piping where a diameter change is needed between threaded pipe segments. The black finish is standard for gas piping work in many jurisdictions. The Class 150 pressure rating aligns with typical low-pressure system requirements found in both above-ground and in-wall piping configurations.

Key Features

• Malleable iron construction provides durability in threaded piping systems
• Black finish standard for gas and general-purpose pipe installations
• Reduces from 3 inches to 2 inches in a single fitting
• Threaded connection per GB/T 7306.2 and ISO 7/1 standards
• Class 150 pressure rating suitable for low-pressure service

Compatibility

Designed as an OEM-style replacement or new-installation fitting for threaded malleable iron piping systems rated at Class 150, accepting standard tapered pipe threads on both the 3-inch and 2-inch ends.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with applicable codes such as the International Plumbing Code (IPC) or International Fuel Gas Code (IFGC). Shut off and depressurize the line completely before removing any existing fittings or making new connections. Apply appropriate thread sealant or PTFE tape to all male threads before assembly. Do not over-tighten threaded connections, as malleable iron fittings can crack under excessive torque.