Value Collection MDB240 15X10-5 Reducing Coupling 1/2x3/8

Product Description

The VALUE COLLECTION MDB240 15X10-5 is a black malleable iron reducing coupling designed for threaded pipe systems in plumbing, gas, and fluid distribution applications. It transitions from a 1/2-inch pipe thread to a 3/8-inch pipe thread and is rated for 300 psi liquid and gas service. The black finish is standard for gas-line fittings and low-pressure piping systems. Built to Class 150 and Schedule 40 specifications, this coupling meets Enterprise Standard, GB/T 7306.2, and ISO 7/1 requirements. Plumbers and pipefitters install this fitting when reducing pipe size within a threaded run. It ships in a package quantity of 5.

This reducing coupling is suited for residential and light commercial piping systems where a threaded size reduction is needed in-line. Common applications include gas distribution piping, water supply lines, compressed air systems, and hydronic heating loops. Its malleable iron construction handles moderate pressure and temperature conditions typical of these systems. The threaded end connections allow installation with standard pipe wrenches and thread sealant without special tooling.

Key Features

• Reduces from 1/2-inch to 3/8-inch threaded pipe in a single fitting
• 300 psi pressure rating for liquid and gas service
• Malleable iron construction for durability in threaded systems
• Black finish suitable for gas-line and industrial piping applications
• Class 150, Schedule 40 rating meets standard installation requirements
• Meets Enterprise Standard, GB/T 7306.2, and ISO 7/1 specifications

Compatibility

Designed as an OEM-style replacement or addition fitting for threaded malleable iron pipe systems using 1/2-inch to 3/8-inch connections in Class 150 applications.

Installation Notes

Installation is performed by a licensed plumber or pipefitter. Shut off and depressurize the line completely before removing or installing any threaded fitting. Apply an appropriate thread sealant or pipe tape to all male threads before assembly and tighten with a pipe wrench to a secure, leak-free connection. For gas applications, verify all joints with an approved leak detection method before restoring pressure, per applicable local codes and IFGC requirements.