Value Collection MDG342 32 Malleable Iron Pipe Union 1-1/4 in

Product Description

The VALUE COLLECTION MDG342 32 is a 1-1/4 inch galvanized malleable iron pipe union designed for threaded pipe connections in gas and liquid distribution systems. This Class 150 union allows sections of threaded pipe to be joined or disconnected without rotating the pipe itself, making it a standard fitting for maintenance-accessible runs. Rated at 300 psi for liquid and gas service and 150 psi for steam service, it suits a wide range of commercial and industrial plumbing and piping applications. Licensed plumbers and pipefitters install this fitting wherever a breakable connection point is required in a threaded iron pipe system.

This union is suited for use in residential and commercial plumbing, gas distribution, and steam piping systems where Class 150 malleable iron fittings are specified. Threaded ends conform to standard NPT configurations, making this fitting compatible with standard iron pipe assemblies. It is commonly installed in mechanical rooms, boiler rooms, and utility piping runs where periodic disassembly for service or inspection is anticipated. The galvanized finish provides added corrosion resistance for exposed or semi-exposed installations.

Key Features

• Galvanized malleable iron construction resists corrosion in wet or humid environments
• Threaded ends for standard NPT pipe connections
• 300 psi liquid and gas pressure rating
• 150 psi steam pressure rating
• Class 150 fitting — meets FM Approved, ISO 228, ISO 7/1, and cULus Listed standards
• Allows pipe disassembly without rotating adjacent pipe sections

Compatibility

Designed as an OEM-style replacement or new-installation fitting for 1-1/4 inch threaded malleable iron pipe systems rated to Class 150 service in plumbing, gas, and steam applications.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with applicable local codes and the International Plumbing Code or International Fuel Gas Code where gas service is involved. Shut off and depressurize the line completely before disassembling or installing any union. Apply an approved thread sealant or PTFE tape to the male threads before assembly, and confirm the union seat is clean and undamaged before making up the connection. Do not over-tighten; follow standard trade practice for iron pipe thread engagement.