Merit Brass SW3411HD-02 Pipe Half Coupling 1/8 in 304 Ss

Product Description

The MERIT BRASS SW3411HD-02 is a 1/8 inch pipe half coupling designed for socket weld connections in high-pressure piping systems. Manufactured from 304 stainless steel, this fitting provides a rated working pressure of 3,000 psi, making it suitable for demanding industrial and mechanical piping applications. A half coupling connects a branch line to a run of pipe using a single socket weld end, allowing a pipe to be welded directly into the fitting. Licensed pipefitters and mechanical contractors typically install this type of fitting in process, utility, and instrumentation piping systems where corrosion resistance and pressure integrity are required.

This fitting is used in residential and commercial mechanical systems as well as light industrial process piping where 304 stainless steel is specified for its corrosion resistance. The socket weld by socket weld end connection configuration requires field welding by a qualified welder. Common applications include steam lines, hydraulic systems, chemical distribution headers, and compressed gas distribution where a Class 3000 forged fitting is called out by the piping specification or engineer of record.

Key Features

• 304 stainless steel construction resists corrosion in wet and chemically active environments
• 3,000 psi pressure rating suits Class 3000 piping system specifications
• Socket weld by socket weld end connections for full-penetration field welds
• Half coupling design simplifies branch connections to pipe runs
• Compact 1/8 inch fitting size for small-bore instrumentation and utility lines

Compatibility

Designed as an OEM-style replacement or new-installation fitting for Class 3000 socket weld piping systems specified with 304 stainless steel half couplings in 1/8 inch pipe size.

Installation Notes

Installation requires a qualified welder following applicable welding procedures and codes such as ASME B31.1 or B31.3 depending on the service. Depressurize and isolate the piping system fully before any welding or modification work begins. Verify the base pipe material is compatible with 304 stainless steel filler materials to avoid dissimilar-metal weld issues. Post-weld inspection requirements should follow the project piping specification or authority having jurisdiction.