B K Mueller 511-805HN 1 Inch Galvanized Pipe Plug

Product Description

The B K/MUELLER INDS(IMPORT) 511-805HN is a plain forged galvanized pipe plug designed to seal off open pipe ends in standard threaded piping systems. This 1-inch plug provides a secure, corrosion-resistant closure on male-threaded pipe fittings and is used in water, gas distribution, and general plumbing applications. The galvanized finish provides a zinc coating that resists rust and extends service life in exposed or moderately humid environments. Plumbers and pipefitters install this fitting where a permanent or semi-permanent end cap is needed on a threaded line.

This plug is suited for residential and light commercial plumbing, gas piping, and mechanical systems where a 1-inch NPT male threaded plug is required. It is commonly installed during system pressure testing to temporarily block off branch lines, or as a permanent seal on unused ports and outlets. The plain forged construction provides consistent thread engagement and reliable seating across standard pipe fittings.

Key Features

• Plain forged construction for consistent thread form and dimensional accuracy
• Galvanized finish provides corrosion resistance in plumbing and mechanical environments
• 1-inch size fits standard NPT threaded pipe connections
• Suitable for use as a permanent seal or temporary test plug on threaded lines
• Sold in a package of 10 units for job-site or shop stocking

Compatibility

Designed as an OEM-style replacement fitting for use with standard 1-inch NPT threaded pipe systems in residential and commercial plumbing and mechanical installations.

Installation Notes

Installation is performed by licensed plumbers or pipefitters following applicable IPC or IFGC code requirements depending on the system type. Shut off and depressurize the line before installing or removing any threaded plug. Apply thread sealant tape or pipe dope to the male threads before installation to ensure a leak-free seal. Do not overtighten, as this can crack fittings or distort threads in softer mating materials.