Value Collection MDB220 100 Black Threaded Coupling 4 in

Product Description

The VALUE COLLECTION MDB220 100 is a 4-inch black malleable iron threaded coupling designed for joining sections of pipe in gas and liquid distribution systems. Built to Class 150 standards with a 300 psi pressure rating, it handles the demands of commercial and industrial piping runs where reliable, leak-free connections are required. The black finish is standard for gas service applications. Licensed plumbers and pipefitters are the typical installers for this fitting type. It meets multiple international and domestic standards, confirming suitability across a range of project specifications and inspection requirements.

This coupling is suited for residential and commercial plumbing, gas distribution, and fire protection piping where a 4-inch threaded connection is specified. The threaded end connections follow Schedule 40 pipe sizing, making it compatible with standard NPT-threaded pipe in black iron gas lines and similar systems. It is sold individually and is appropriate for new installation or repair work where an in-line coupling is needed to join two pipe segments.

Key Features

• 4-inch threaded end connections sized for Schedule 40 pipe
• Class 150 malleable iron construction with 300 psi liquid and gas pressure rating
• Black finish standard for gas service piping applications
• Multi-standard certified: ABNT, EN 10242, FM Approved, GB/T 3287, GB/T 7306.2, ISO 7/1, cULus Listed
• Sold as a single unit with a minimum order quantity of 1

Compatibility

Designed as an OEM-style replacement or new-installation fitting for 4-inch Schedule 40 threaded black iron pipe systems used in gas distribution, plumbing, and fire protection applications.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with applicable local codes, the International Fuel Gas Code (IFGC), or the International Plumbing Code (IPC) as appropriate to the service. Shut off gas or liquid supply and relieve system pressure before removing or installing any fitting. Apply a listed pipe thread sealant or PTFE tape rated for the intended service to all threaded connections. Do not overtighten threaded connections, as malleable iron fittings can crack if subjected to excessive torque.