B K/mueller Inds(import) 511-704HN Galvanized Union 3/4 in

Product Description

The B K/MUELLER INDS(IMPORT) 511-704HN is a 3/4-inch galvanized union designed for threaded pipe assemblies in plumbing and mechanical systems. This union combines a brass seat with an iron body to deliver a secure, leak-resistant connection that allows pipes to be joined or disconnected without disturbing the surrounding run. The galvanized finish provides corrosion resistance for use in water supply and general plumbing applications. It is sized at 3/4 inch and is sold in a package of 10 units. Licensed plumbers and pipefitters are the primary installers of this type of fitting in both residential and light commercial work.

This galvanized union is suited for residential and light commercial potable water supply lines, heating system piping, and general-purpose iron pipe installations where a removable connection point is required. The brass-to-iron seat interface helps create a metal-to-metal seal that holds up under normal service conditions. Installers commonly use this fitting where future serviceability of a run is needed, such as near valves, equipment connections, or other serviceable components.

Key Features

• 3/4-inch nominal size for standard NPT threaded iron pipe
• Galvanized finish for corrosion resistance in water and mechanical piping
• Brass seat and iron body construction for durable metal-to-metal sealing
• Union design allows pipe disassembly without cutting or threading
• Sold in a package of 10 units for job-lot convenience

Compatibility

Designed as an OEM-style replacement or new-installation fitting for 3/4-inch NPT threaded galvanized or black iron pipe systems in residential and commercial plumbing applications.

Installation Notes

Installation should be performed by a licensed plumber in accordance with applicable local plumbing codes and IPC standards. Shut off and depressurize the pipe system completely before removing or installing any union fitting. Apply an appropriate pipe thread sealant or tape to all male NPT threads before assembly. Do not overtighten the union nut, as excessive force can damage the brass seat and compromise the seal.