B K Mueller 511-803HN 1/2 in Galvanized Pipe Plug 20 Pack

Product Description

The B K Mueller Industries 511-803HN is a 1/2 inch galvanized pipe plug designed to cap off or seal pipe ends and fittings in plumbing, gas, and general piping systems. Constructed using a plain forged process, this plug delivers consistent thread geometry and material density suited for demanding trade applications. Sold in a package of 20 units, it is a practical stock item for plumbers and pipefitters handling multiple termination points on a single job or maintaining a service van inventory. The galvanized finish provides corrosion resistance in wet and moderately corrosive environments.

This plug is used in residential and light commercial plumbing systems where a threaded pipe end requires a secure, leak-free cap. Typical applications include capping unused branch outlets on manifolds, temporarily sealing lines during pressure testing, and permanently terminating unused ports on gas or water distribution systems. Plumbers and pipefitters are the primary trade professionals installing this fitting. The 20-piece pack quantity makes it well suited for contractors running multiple rough-in locations.

Key Features

• Plain forged construction for consistent thread form and structural integrity
• Galvanized finish resists corrosion in wet and moderate-exposure environments
• 1/2 inch size fits standard NPT threaded pipe ends and fittings
• Sold in a 20-unit pack to reduce per-unit cost on multi-point jobs
• Compact and lightweight at approximately 1.53 pounds per pack for easy van stocking

Compatibility

Designed as a standard NPT threaded pipe plug for use with 1/2 inch galvanized, black iron, or compatible threaded pipe fittings in plumbing and piping systems.

Installation Notes

This fitting is installed by licensed plumbers or pipefitters following applicable IPC or IFGC codes depending on the system type. Shut off and depressurize the line completely before installing or removing any threaded plug. Apply appropriate thread sealant or tape to the male threads before installation to ensure a leak-free seal. Do not overtighten, as this can crack fittings or distort threads.