Midland Industries 63777MS Half Coupling 316 Ss 1-1/2 in

Product Description

The MIDLAND INDUSTRIES 63777MS is a half coupling fitting designed to connect a 1-1/2-inch female NPT thread on one end to a 1-1/2-inch socket weld connection on the other. Manufactured from 316 stainless steel, this fitting delivers corrosion resistance suitable for demanding industrial and process piping environments. It carries a 150 lb pressure class rating and a 1-1/2-11-1/2 thread specification. The compact profile measures 1.05 inches in height and 2.4 inches in length and width, making it easy to work into tight pipe assemblies. Plumbers, pipefitters, and industrial maintenance technicians typically install this fitting in process lines, chemical handling systems, and corrosive-fluid applications where 316 SS material is specified.

This half coupling is suited for residential and commercial process piping, steam lines, chemical distribution, and marine or coastal installations where chloride resistance is required. The dual-connection design accommodates transitions between threaded and welded pipe systems, a common requirement in industrial plant maintenance and retrofit work. It is part of the SP-114 Fittings line, a 316 stainless steel fitting series for professional piping applications.

Key Features

• 316 stainless steel construction for superior corrosion and chloride resistance
• 1-1/2-inch female NPT x 1-1/2-inch socket weld dual-connection design
• 150 lb pressure class rating for standard industrial service
• 1-1/2-11-1/2 thread specification per NPT standard
• Compact dimensions: 1.05 inches height, 2.4 inches length, 2.4 inches width

Compatibility

Designed as an OEM-style replacement or new-installation fitting for 1-1/2-inch schedule pipe systems requiring a female NPT to socket weld half coupling in 316 stainless steel at 150 lb pressure class.

Installation Notes

Installation should be performed by a licensed pipefitter or plumber in accordance with applicable codes, including ASME B31.3 for process piping or local jurisdictional requirements. Depressurize and drain the line completely before removing any existing fitting or making new connections. The socket weld end requires proper gap fit and qualified weld procedure per applicable welding standards. Use appropriate thread sealant rated for the service fluid on the NPT end.