Merit Brass K611H-08 Half Coupling 1/2 in 316 Ss Fnpt 150 Psi

Product Description

The MERIT BRASS K611H-08 is a 1/2 inch pipe half coupling manufactured from 316 stainless steel, designed for threaded pipe connections in plumbing, industrial, and process piping systems. The half coupling features a female NPT (FNPT) end connection and is rated to 150 psi, making it suitable for moderate-pressure liquid and gas applications where corrosion resistance is a priority. At 0.1 pounds, this compact fitting is easy to handle during installation. Plumbers, pipefitters, and mechanical contractors use this fitting to create branch connections or terminate pipe runs in corrosive or sanitary environments where 316 SS is the specified material grade.

This half coupling is used in residential and commercial plumbing, food processing, chemical handling, and marine piping installations where 316 stainless steel is required for its superior chloride and corrosion resistance compared to 304-grade material. The FNPT threaded connection mates with standard male NPT pipe threads, requiring no special tooling beyond a pipe wrench and thread sealant. It is well suited for new installations and repair work where a reliable, corrosion-resistant threaded branch fitting is needed at 1/2 inch pipe size.

Key Features

• 316 stainless steel construction for strong corrosion resistance in harsh and sanitary environments
• FNPT (female NPT) threaded end connection for standard pipe thread compatibility
• 150 psi pressure rating suitable for moderate-pressure piping systems
• 1/2 inch fitting size for common small-diameter pipe runs
• ISO standard compliance for consistent dimensional accuracy
• Lightweight at 0.1 pounds for easy single-hand installation

Compatibility

Designed as an OEM-style replacement or new-installation fitting compatible with standard 1/2 inch male NPT threaded pipe in 150-class threaded piping systems.

Installation Notes

Installation of this fitting is performed by licensed plumbers or qualified pipefitters following applicable IPC and local mechanical code requirements. Shut off and depressurize the piping system completely before removing or installing any threaded fittings. Apply an approved pipe thread sealant or PTFE tape to the male threads before engagement to ensure a leak-free joint. Do not overtighten, as excessive torque can crack or distort stainless steel fittings.