Midland Industries 62771 Half Coupling 1/4 in Npt X Socket Weld Ss

Product Description

The MIDLAND INDUSTRIES 62771 is a 150 lb half coupling designed to transition between a 1/4-inch Female NPT connection and a 1/4-inch socket weld connection. Constructed from 304 stainless steel, this fitting is suited for piping systems where corrosion resistance and pressure integrity are required. The threaded end uses a 1/4-18 NPT thread form. At 0.025 pounds, it is a compact fitting measuring approximately 0.6 inches in diameter and 0.39 inches in length. Plumbers and pipefitters use half couplings like this to terminate a threaded run into a welded pipe assembly or to add a threaded branch outlet to a welded line.

This fitting is appropriate for residential and light commercial plumbing, process piping, and mechanical systems where 304 stainless steel is specified for corrosion resistance or sanitary requirements. It is rated for 150 lb pressure class service, making it suitable for standard low-to-medium pressure fluid and gas piping applications. The socket weld end requires a qualified welder to complete the joint, while the NPT end accepts standard pipe thread sealant or tape.

Key Features

• 304 stainless steel construction for corrosion resistance in demanding piping environments
• 1/4-inch Female NPT on one end, 1/4-inch socket weld on the other end
• 1/4-18 NPT thread specification for standard pipe thread engagement
• 150 lb pressure class rating suitable for standard service piping
• Compact form factor at 0.6 inches wide and 0.39 inches in length

Compatibility

Designed as an OEM-style replacement or new-installation fitting for 150 lb rated stainless steel piping systems using 1/4-inch NPT threaded and socket weld connections.

Installation Notes

Installation should be performed by a licensed plumber or certified pipefitter in accordance with applicable codes such as the IPC or ASME B31.3 for process piping. Depressurize and drain the line completely before cutting into any existing piping. The socket weld end must be joined by a qualified welder using appropriate filler material compatible with 304 stainless steel. Apply pipe thread sealant or PTFE tape to the NPT threads in accordance with the fitting manufacturer and code requirements.