Bk Mueller 587-090HC Black Pipe Nipple 1.5x9 in Sch 40

Product Description

The BK MUELLER 587-090HC is a Schedule 40 black steel pipe nipple rated for general-purpose piping applications in residential and commercial systems. It measures 1-1/2 inches in diameter and 9 inches in length, constructed via welded fabrication from steel with a black finish coating. The NPT threads conform to ASME B1.20.1, ensuring reliable thread engagement with standard fittings and valves. At 2.5 pounds, this nipple is a stock extension fitting used by plumbers and pipefitters to connect sections of threaded pipe in gas, water, and industrial service lines.

This nipple is suited for Schedule 40 black iron piping systems commonly found in natural gas distribution, steam, and water supply installations. Plumbers and mechanical contractors install these fittings in both new construction and retrofit work where a 9-inch extension between threaded components is required. The black finish is standard for gas-line applications. Material and thread standards comply with ASTM A733 and ASME B1.20.1, making this nipple appropriate for code-compliant mechanical and plumbing systems.

Key Features

• Schedule 40 wall thickness for standard-service pressure ratings
• Welded steel construction with black finish coating
• NPT threads conforming to ASME B1.20.1 for reliable sealing with standard fittings
• Meets ASTM A733 material standard for welded pipe nipples
• 1-1/2 inch pipe size with matching 1-1/2 inch thread size on both ends

Compatibility

Designed as an OEM-style replacement or stock fitting for Schedule 40 black iron threaded piping systems in residential and commercial gas, water, and steam applications.

Installation Notes

Installation is performed by a licensed plumber or pipefitter. Shut off the gas or water supply and verify zero pressure before threading this nipple into the line. Apply appropriate thread sealant or PTFE tape to the NPT threads per the applicable code, such as IFGC for gas service or IPC for water service. Do not over-tighten threaded connections, as this can crack fittings or distort threads.