Merit Brass K611H-02 Half Coupling 1/8 in 316 Ss Fnpt

Product Description

The MERIT BRASS K611H-02 is a 1/8 inch pipe half coupling manufactured from 316 stainless steel with a female NPT (FNPT) threaded end connection. Half couplings are used to create a branch outlet or terminate a run where only one end requires a pipe connection. The 316 stainless steel construction provides superior corrosion resistance in aggressive environments, making it well suited for process piping, chemical handling, and marine applications. It carries a 150 psi pressure rating and meets ISO standards. Plumbers and pipefitters install this fitting using standard NPT threading practices.

This half coupling is appropriate for residential and commercial plumbing, industrial process lines, and instrumentation or utility piping where a small-diameter branch or termination point is needed. The 1/8 inch size fits tight-space runs and low-flow branch lines. Its threaded FNPT connection allows straightforward installation with compatible male NPT pipe or fittings without the need for welding or special tooling.

Key Features

• 316 stainless steel construction for strong corrosion resistance in harsh or wet environments
• FNPT threaded end connection for tool-ready installation with standard NPT male pipe
• 150 psi pressure rating suitable for a wide range of low-pressure piping applications
• Meets ISO standards for dimensional consistency and interchangeability
• Compact 1/8 inch fitting size for small-bore branch connections and terminations

Compatibility

Designed as an OEM-style replacement or new-installation half coupling for 1/8 inch NPT threaded pipe systems requiring a 316 stainless steel fitting.

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 disassembling or installing any threaded fittings. Apply appropriate thread sealant or PTFE tape to the male NPT threads before making up the joint. Do not overtighten threaded stainless steel fittings, as galling can occur if joints are forced.