Bk Mueller 511-207HN 1.5 Inch Galvanized Coupling with Stop

Product Description

The BK Mueller 511-207HN is a 1-1/2 inch galvanized steel pipe coupling with an internal stop, designed for joining threaded steel pipe sections in water supply, gas distribution, and general plumbing systems. The internal stop centers each pipe end within the fitting, ensuring consistent engagement depth and reducing the risk of misaligned joints. Licensed plumbers and pipefitters install this coupling in residential and light commercial applications where corrosion resistance and a secure threaded connection are required. The galvanized finish provides a zinc coating that helps resist rust in wet or exposed environments. This part ships in a package quantity of five units.

This coupling is suited for use on 1-1/2 inch nominal threaded steel pipe runs in potable water supply lines, heating system piping, and industrial fluid transport where galvanized fittings meet code requirements. The with-stop design simplifies installation by eliminating the need to measure pipe makeup depth manually, making it a practical choice for high-volume mechanical room work or repetitive field connections. It is sold in a five-unit pack, which suits service contractors and mechanical contractors working on multiple connections at once.

Key Features

• 1-1/2 inch nominal pipe size for standard threaded steel pipe
• Internal stop centers pipe ends for consistent makeup depth
• Galvanized steel construction with zinc coating for corrosion resistance
• Packaged in units of five for multi-connection jobs
• Threaded ends accept standard NPT pipe threads

Compatibility

Designed as an OEM-style replacement and standard-use fitting for 1-1/2 inch nominal threaded galvanized steel pipe systems in residential and commercial plumbing and mechanical applications.

Installation Notes

Installation should be performed by a licensed plumber or qualified pipefitter in accordance with applicable local plumbing codes and the International Plumbing Code (IPC). Shut off and depressurize the pipe system fully before disassembling any existing connections. Apply an approved pipe thread sealant or PTFE tape to male threads before assembly, and tighten to proper engagement using pipe wrenches. Do not over-torque threaded connections, as this can damage the fitting or distort the stop shoulder.