Merit Brass K611H-16 Half Coupling 1 in 316 Ss Fnpt

Product Description

The MERIT BRASS K611H-16 is a pipe half coupling designed for threaded pipe connections in plumbing, industrial piping, and mechanical systems. Machined from 316 stainless steel, this half coupling provides a corrosion-resistant transition point where a branch or end connection is needed on a run of pipe. The female NPT (FNPT) threads on both ends accept standard tapered pipe threads for a reliable, leak-resistant seal. Rated at 150 psi, it is suited for moderate-pressure fluid handling applications. Licensed plumbers and pipefitters typically install this fitting in commercial and industrial environments where 316 stainless is specified for its resistance to chlorides and aggressive media.

This half coupling is used in residential and commercial plumbing, process piping, and mechanical systems requiring a corrosion-resistant threaded fitting. It is appropriate for water, chemical, and general fluid service lines where 316 stainless steel is required by specification or code. The 1-inch fitting size makes it a common choice for branch connections on main supply or distribution lines. Installers working in marine, food service, pharmaceutical, or chemical processing environments frequently select 316 stainless fittings to meet material compatibility requirements.

Key Features

• 316 stainless steel construction resists corrosion, chlorides, and aggressive media
• FNPT threaded connection compatible with standard tapered pipe threads
• 150 psi pressure rating suitable for moderate-pressure fluid service
• Half coupling design for branch or end connections on pipe runs
• Meets ISO standards for dimensional and performance consistency

Compatibility

Designed as an OEM-style replacement or new-installation fitting for 1-inch threaded pipe systems requiring FNPT connections in 316 stainless steel.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with applicable IPC or ASME B31 piping codes. Shut off and depressurize the system completely before removing or installing any threaded fittings. Apply an appropriate thread sealant or PTFE tape to the male threads before assembly. Do not over-tighten threaded stainless steel fittings, as galling can occur and compromise thread integrity.