Matco-norca mn-fw3cp06 Steel Socket Weld Coupling 1-1/4 in

Product Description

The MATCO-NORCA mn-fw3cp06 is a Class 3000 forged steel socket weld coupling designed for high-pressure piping systems. This fitting accepts pipe into a recessed socket and is joined by fillet welds on each end, creating a permanent, leak-resistant connection. At 1-1/4 inches, it is a common size in industrial and commercial mechanical piping where threaded connections are not acceptable at elevated pressures. Licensed pipefitters and plumbers install this coupling during new construction and retrofit projects on steam, hydraulic, and process piping systems.

This coupling is suited for high-pressure, high-temperature piping applications in commercial and industrial environments. Socket weld fittings at the Class 3000 pressure rating are standard in steam distribution, compressed air headers, hydraulic lines, and similar systems where joint integrity is critical. The 1-1/4 inch size fits into medium-diameter branch and main line piping configurations commonly found in mechanical rooms and process facilities.

Key Features

• Class 3000 pressure rating for high-pressure piping service
• Forged steel construction for strength and durability in demanding applications
• Socket weld end connection for a permanent, full-penetration fillet weld joint
• 1-1/4 inch pipe size suits medium-diameter piping runs
• Shipping weight of approximately 1.07 pounds per unit

Compatibility

Designed as an OEM-style replacement or new-installation fitting for Class 3000 socket weld piping systems using 1-1/4 inch forged steel pipe fittings per standard industry specifications.

Installation Notes

Installation should be performed by a licensed pipefitter or plumber in accordance with applicable mechanical and piping codes, including ASME B31.1 or B31.3 as required by the system type. Depressurize and isolate the piping system completely before cutting into any existing line. Socket weld fittings require a gap between the pipe end and the socket shoulder before welding; follow the applicable welding procedure specification for gap dimension and fillet weld size. Do not use socket weld fittings in applications where crevice corrosion is a documented concern without engineering review.