B K/mueller 511-320HC Galvanized Reducing Coupling 3/8x1/8

Product Description

The B K/MUELLER INDS(IMPORT) 511-320HC is a galvanized reducing coupling designed for threaded pipe connections where a 3/8-inch line transitions to a 1/8-inch line. The galvanized finish provides corrosion resistance suitable for water supply, gas distribution, and general plumbing applications. This fitting is sold in a package of 30 units, making it well suited for contractors and service professionals who need consistent stock on hand. Licensed plumbers and pipefitters install this type of reducing coupling when downsizing line size within a threaded pipe assembly.

This coupling is appropriate for residential and light commercial plumbing and gas piping systems where a reduction from 3/8-inch to 1/8-inch NPT threading is required. It is commonly installed at branch connections, instrumentation ports, or appliance supply lines. The package quantity of 30 pieces per unit of measure makes it practical for wholesale purchasing and job-site stocking.

Key Features

• Galvanized finish for corrosion resistance in water and gas service environments
• Reducing configuration connects 3/8-inch to 1/8-inch threaded pipe
• Package of 30 units per order quantity supports bulk job-site needs
• Standard NPT threading for compatibility with common threaded pipe fittings

Compatibility

Designed as an OEM-style replacement or standard-stock reducing coupling for threaded pipe systems using 3/8-inch to 1/8-inch NPT connections in plumbing and gas distribution applications.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with applicable IPC or IFGC code requirements. Shut off the water or gas supply and depressurize the line before making or breaking any threaded connections. Apply an approved thread sealant or PTFE tape to the male threads before assembly. Do not overtighten, as this can crack or distort the fitting body.