

Ships same day if ordered by 12 pm
Manufacturer pricing rules prevent us from advertising our discount — no account or email required to see it.
Secure Payments
Easy Returns
Expert Advice
Fast Shipping
The ASC ENGINEERED SOLUTIONS 812509610 is a 3-inch black malleable iron union designed for joining and disconnecting threaded pipe sections in ferrous piping systems. This fitting uses the standard three-piece union design — two threaded end connections and a center collar nut — allowing the pipe run to be broken without disturbing adjacent fittings. Weighing 4.33 pounds, it is built for industrial, mechanical, and plumbing applications where a reliable, re-serviceable pipe joint is required. The black coating provides a basic level of corrosion resistance suitable for above-ground indoor piping service. Licensed plumbers and pipefitters are the primary installers of this fitting.
This union is suited for use in residential and commercial gas piping, hydronic heating, compressed air, and general black-iron pipe installations where a 3-inch threaded union connection is specified. It is an imported fitting manufactured to standard malleable iron union dimensions and thread profiles, making it a practical replacement or addition to existing black iron pipe systems. Mechanical contractors, industrial pipefitters, and licensed plumbers commonly specify malleable iron unions at equipment connections to allow future removal of boilers, unit heaters, compressors, and similar equipment.
Designed as an OEM-style replacement or new-installation fitting for 3-inch black iron threaded pipe systems in residential and commercial mechanical applications.
Installation of this union is typically performed by a licensed plumber or pipefitter in accordance with applicable local codes and IFGC or IPC requirements. Shut off all gas, fluid, or air supply and depressurize the line before disassembling or installing any union fitting. Use thread sealant or PTFE tape rated for the service medium on all male threads before assembly. Do not over-tighten the collar nut; hand-tighten and then use a pipe wrench to bring the union face seats into firm, leak-free contact.
Thanks for subscribing!
This email has been registered!