Value Collection MDB342 15-5 300 Malleable Iron Union 1/2 in

Product Description

The VALUE COLLECTION MDB342 15-5 300# is a Class 300 black malleable iron threaded union designed for use in piping systems where a removable, pressure-rated connection is required. The union features a black finish and a 1/2-inch threaded connection, making it suitable for gas, water, and mechanical piping assemblies. It is built to handle the demands of trade installations and meets multiple recognized standards including FM Approved, cULus Listed, EN 10242, ISO 228, and ISO 7/1. Licensed plumbers, pipefitters, and mechanical contractors are the typical installers for this fitting type.

This union is intended for use in residential and commercial piping systems requiring a Class 300 rated threaded union at the 1/2-inch pipe size. The black malleable iron construction suits applications such as gas distribution lines, fire protection systems, and general mechanical piping where a durable, code-compliant union fitting is specified. Each package contains 5 units, with a minimum order quantity of 1.

Key Features

• Class 300 pressure rating for demanding piping system applications
• Malleable iron construction with black finish for durability and corrosion resistance
• 1/2-inch threaded connection for standard NPT pipe assembly
• FM Approved and cULus Listed for use in fire protection and code-compliant installations
• Meets EN 10242, GB/T 3287, GB/T 7306.2, GB/T 7307, ISO 228, and ISO 7/1 standards
• Sold in packs of 5 with a minimum order quantity of 1

Compatibility

Designed as an OEM-style replacement or new-installation fitting for 1/2-inch threaded malleable iron piping systems rated at Class 300.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with applicable local mechanical and plumbing codes, including IPC and IFGC requirements where applicable. Shut off and depressurize the piping system fully before disassembling or installing any union fitting. Use an appropriate thread sealant or PTFE tape rated for the specific service medium before making threaded connections. Do not over-tighten threaded connections; follow standard trade practices for malleable iron fittings.