Asc Engineered Solutions 313822520 Malleable Iron Union 4 in

Product Description

The ASC Engineered Solutions 313822520 is a 4-inch, Class 150 threaded malleable iron union with a galvanized finish and ground joint design. This fitting connects two sections of threaded pipe and allows for controlled disassembly without disturbing the surrounding piping system. The ground joint seat provides a metal-to-metal seal between the union nut and the two end pieces. At 17.86 pounds, this is a heavy-duty fitting suited for commercial and industrial piping installations where a reliable, field-serviceable connection is required. Licensed plumbers and pipefitters install this fitting in gas, water, and general-purpose piping systems.

This union is suited for 4-inch threaded pipe systems operating at Class 150 service conditions. The galvanized coating provides corrosion resistance for above-ground and moderate-environment installations. Typical applications include mechanical rooms, boiler rooms, industrial process piping, and commercial plumbing systems where sections of pipe must remain accessible for future service or system modification. Domestic manufacture supports projects with buy-domestic procurement requirements.

Key Features

• 4-inch fitting size with Class 150 threaded end connections
• Ground joint design allows metal-to-metal seating for a secure, leak-resistant connection
• Malleable iron construction provides strength and impact resistance in threaded fittings
• Galvanized coating adds corrosion resistance for general-purpose piping environments
• Union design enables disassembly of piping runs without cutting or unthreading adjacent fittings
• Domestically manufactured to support applicable procurement specifications

Compatibility

Designed as an OEM-style replacement or new-installation fitting for 4-inch Class 150 threaded malleable iron piping systems in commercial and industrial applications.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with applicable IPC and IFGC code requirements. Shut off and depressurize the piping system completely before removing or installing any union fitting. Apply listed thread sealant or PTFE tape to all male threaded connections before assembly. Do not over-tighten the union nut, as the ground joint relies on proper seating rather than compressive force alone.

Technical Specifications

• Fitting Size: 4 inches
• Pressure Class: 150
• Connection Type: Threaded Ground Joint
• Fitting Material: Malleable Iron
• Coating: Galvanized
• Item Weight: 17.86 pounds
• Country of Origin: Domestic

Standard Information

• Brand: ASC Engineered Solutions
• Manufacturer Part Number: 313822520