Value Collection G-UNI05 Malleable Iron Pipe Union 1/2 in

Product Description

The VALUE COLLECTION G-UNI05 is a 1/2-inch malleable iron pipe union rated for 300 psi on liquid and gas service and 150 psi on steam service. It carries a Class 150 designation and features a galvanized finish coating for added corrosion resistance. This fitting is used to join threaded pipe runs in plumbing, HVAC, and industrial piping systems, allowing sections to be disconnected without rotating adjacent pipe. Licensed plumbers and pipefitters install this union wherever a future breakpoint is needed in a threaded iron pipe assembly.

This union is suited for residential and light commercial applications involving gas distribution lines, hydronic heating systems, compressed air piping, and general liquid service. The galvanized finish makes it appropriate for exposed or mildly corrosive environments. At 1.5 pounds, it is a compact, single-unit fitting designed for standard 1/2-inch NPT threaded connections commonly found throughout mechanical rooms, utility spaces, and equipment rough-in work.

Key Features

• 300 psi liquid and gas pressure rating for demanding service conditions
• 150 psi steam pressure rating — suitable for low-pressure steam systems
• Malleable iron construction provides strength and impact resistance in threaded fittings
• Galvanized finish coating for corrosion protection in exposed installations
• Class 150 fitting — compatible with standard threaded iron pipe systems
• 1/2-inch fitting size for common residential and light commercial pipe runs

Compatibility

Designed as an OEM-style replacement or new-installation fitting for 1/2-inch NPT threaded malleable iron pipe systems in Class 150 liquid, gas, and steam service applications.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with applicable local codes and the International Plumbing Code (IPC) or International Fuel Gas Code (IFGC) where applicable. Shut off and depressurize the pipe system completely before disassembling or installing any union fitting. Apply an approved thread sealant or PTFE tape to the male threads before assembly. Do not over-tighten malleable iron fittings, as the material can crack under excessive torque.