Bmi Usa 20003 Black Xh Malleable Iron Pipe Coupling 3/8

Product Description

The BMI USA 20003 is a 3/8-inch extra heavy (XH) black malleable iron pipe coupling designed for threaded pipe connections in demanding industrial and commercial piping systems. Malleable iron construction provides the ductility and strength needed to handle high-stress installations where standard-weight fittings are not rated for the application. The black finish indicates this coupling has not been galvanized, making it standard for gas distribution, steam, and general industrial service. Licensed plumbers and pipefitters install this type of fitting as part of threaded black iron pipe assemblies.

This coupling is suited for use in commercial and industrial piping systems that require extra heavy wall fittings for added pressure capacity and mechanical durability. Common applications include natural gas supply lines, steam service, compressed air distribution, and industrial fluid conveyance where code or system design specifies XH-rated components. The 3/8-inch size targets branch lines, smaller-diameter service runs, and retrofit connections in existing threaded systems.

Key Features

• Extra heavy (XH) malleable iron construction for increased wall thickness and pressure capacity
• Black finish — ungalvanized, suitable for gas, steam, and industrial service
• 3/8-inch diameter fits standard threaded pipe in that size
• Malleable iron provides ductility to resist cracking under mechanical stress
• Threaded coupling design for straightforward field installation with pipe wrenches

Compatibility

Designed as an OEM-style replacement and standard fitting for 3/8-inch threaded black iron pipe systems requiring extra heavy malleable iron couplings.

Installation Notes

Installation of threaded pipe fittings should be performed by a licensed plumber or pipefitter in accordance with applicable codes, including the International Fuel Gas Code (IFGC) and International Plumbing Code (IPC) where gas or pressure piping is involved. Shut off the gas supply or depressurize the system completely before removing or installing any fittings. Apply appropriate thread sealant or PTFE tape rated for the service medium before making up the joint. Avoid over-tightening, which can crack cast fittings, and verify system pressure integrity after installation.

Technical Specifications

• Material: Extra Heavy Malleable Iron
• Finish: Black
• Pipe Size: 3/8 inches
• Weight: 0.27 pounds
• UPC: 777701200038

Standard Information

• Brand: BMI USA
• Manufacturer Part Number: 20003