Midland Industries 63777 Half Coupling 316 Ss 150 Lb

Product Description

The MIDLAND INDUSTRIES 63777 is a half coupling fitting designed for joining pipe in industrial and commercial piping systems where corrosion resistance is required. One end accepts a 1-1/2-inch female NPT threaded connection using a 1-1/2-11-1/2 thread form, while the opposite end is configured for socket weld attachment. Constructed from 316 stainless steel, this fitting is rated for 150 lb pressure class service. At approximately 2 inches in diameter and just under 1 inch in length, it fits into tight spaces without sacrificing structural integrity. Plumbers, pipefitters, and industrial maintenance technicians install this fitting in process, mechanical, and utility piping applications.

This half coupling is suited for residential and commercial mechanical rooms, industrial process lines, and utility piping where stainless steel is specified for corrosion or sanitary requirements. The combination of female NPT threading and socket weld end makes it a versatile transition fitting used when connecting threaded pipe or equipment to a welded piping system. It falls within the 150# stainless steel fitting category and is appropriate for moderate-pressure service lines carrying water, steam, chemicals, or other compatible media.

Key Features

• 316 stainless steel construction provides superior corrosion resistance in wet, chemical, and sanitary environments
• 1-1/2-inch female NPT end with 1-1/2-11-1/2 thread form for reliable threaded connections
• 1-1/2-inch socket weld end allows direct weld attachment to matching pipe
• 150 lb pressure class rating suitable for moderate-pressure piping systems
• Compact body measuring approximately 2 inches in diameter and 0.94 inches in length
• Low unit weight of 0.3 pounds simplifies handling and overhead installation

Compatibility

Designed as an OEM-style replacement or new-installation fitting for 150 lb rated stainless steel piping systems using 1-1/2-inch NPT threaded and socket weld connections.

Installation Notes

Socket weld end installation requires a certified welder working in accordance with applicable piping codes such as ASME B31.3 or B31.1. The threaded NPT end should be assembled with an appropriate thread sealant rated for the service media and pressure. Shut off and depressurize the piping system completely before cutting in or modifying any fitting. Verify material compatibility between the 316 stainless steel fitting and the pipe, process media, and any dissimilar metals in the system to avoid galvanic corrosion.