B K Mueller 563-045HN Galvanized Pipe Nipple 1/2x4.5 in

Product Description

The B K Mueller Industries 563-045HN is a galvanized steel pipe nipple measuring 1/2 inch nominal diameter by 4-1/2 inches in length. Pipe nipples serve as short threaded connectors used to join sections of pipe, fittings, valves, or equipment in gas, water, and mechanical piping systems. The galvanized finish provides a zinc coating that resists corrosion in wet or exposed installations. This nipple is a standard trade component installed by licensed plumbers, pipefitters, and HVAC mechanics in both new construction and retrofit work.

This galvanized nipple is suited for residential and light commercial plumbing, gas distribution, and HVAC hydronic piping applications where a short close-to-standard-length threaded connection is needed. It is commonly used at valve drops, equipment connections, manifold assemblies, and branch takeoffs. The 1/2 inch size is among the most frequently specified nominal pipe sizes in residential supply lines and low-pressure gas piping.

Key Features

• 1/2 inch nominal diameter with 4-1/2 inch length for short-run threaded connections
• Galvanized zinc coating for corrosion resistance in wet and exposed environments
• NPT-threaded ends compatible with standard pipe fittings, valves, and couplings
• Sold in a package quantity of 15 units per pack
• Suitable for gas, water, and hydronic mechanical piping systems

Compatibility

Designed as a standard NPT galvanized pipe nipple for use with 1/2 inch threaded fittings, valves, and couplings in plumbing, gas, and HVAC mechanical piping systems.

Installation Notes

Galvanized pipe nipples are installed by licensed plumbers or pipefitters using pipe wrenches and appropriate thread sealant or PTFE tape rated for the intended service. Shut off and depressurize the supply line before removing or installing any threaded components. Follow applicable local plumbing codes, IFGC requirements for gas piping, and IPC standards for water systems when selecting thread sealants and pressure ratings. Do not overtighten threaded connections, as this can crack fittings or damage threads.