Asc Engineered Solutions 8700162954 Black Iron Union 1/2 in

Product Description

The ASC ENGINEERED SOLUTIONS 8700162954 is a 1/2 inch ground joint malleable black iron union designed for threaded pipe assemblies in gas, water, and general plumbing distribution systems. The ground joint design creates a metal-to-metal seat that allows the union to be disconnected and reconnected without distorting the pipe run. National Pipe Taper threads provide tighter, more reliable seals than straight threads. The black iron finish offers basic corrosion resistance for above-ground dry or low-moisture environments. This fitting is sold individually and is installed by licensed plumbers and pipefitters.

This union is suited for residential and light commercial plumbing and gas piping applications where 1/2 inch threaded pipe connections require a serviceable break point. Typical installations include branch connections on natural gas or propane lines, hot and cold water distribution, and steam or hydronic heating systems where periodic disassembly is required for maintenance or equipment service.

Key Features

• Ground joint metal-to-metal seat allows clean disassembly and reassembly without pipe distortion
• National Pipe Taper (NPT) threads for tighter seals compared to straight-thread fittings
• Malleable iron construction provides impact resistance and strength suitable for threaded pipe systems
• Black finish resists rust in typical above-ground piping environments
• Meets Federal Spec. WW-U-531C, ANSI B-16.39 for malleable iron unions (Class 150)
• Meets Fed. Spec. WW-P-471-B, ANSI B-16.14 (Dimensions), and ANSI B-2.1 (Pipe Threads)

Compatibility

Designed as an OEM-style replacement or new-installation fitting for 1/2 inch NPT threaded pipe systems in residential and commercial plumbing, gas distribution, and hydronic heating applications.

Installation Notes

Installation of threaded iron pipe fittings should be performed by a licensed plumber or pipefitter in accordance with applicable local codes, the International Plumbing Code (IPC), or the International Fuel Gas Code (IFGC) for gas service. Shut off the gas or water supply and relieve system pressure completely before disassembling or installing any union. Apply an appropriate thread sealant or PTFE tape rated for the service medium to all male threads before assembly. Do not over-tighten the union nut, as malleable iron threads can crack under excessive torque.

Technical Specifications

• Pipe Size: 1/2 inch
• Connection Type: National Pipe Taper (NPT) threaded
• Joint Type: Ground joint
• Material: Malleable iron
• Finish: Black
• Class: 150
• Weight: 0.41 pounds
• Standards: Fed. Spec. WW-U-531C, ANSI B-16.39, Fed. Spec. WW-P-471-B, ANSI B-16.14, ANSI B-2.1
• Sold As: Each

Standard Information

• Brand: ASC ENGINEERED SOLUTIONS
• Manufacturer Part Number: 8700162954