Merit Brass K617H-24 Hex Plug 1-1/2 in 316 Ss Mnpt 150 Psi

Product Description

The MERIT BRASS K617H-24 is a hex plug fitting designed to cap off male-threaded pipe ends in piping systems that demand corrosion resistance and reliable pressure retention. Machined from 316 stainless steel, this plug connects via a male NPT (MNPT) threaded end and is rated to 150 psi. At 1-1/2 inches fitting size, it is sized for medium-diameter pipe runs commonly found in industrial, commercial, and process piping installations. Plumbers, pipefitters, and mechanical contractors install this type of fitting when terminating or temporarily sealing a threaded pipe branch or port.

This hex plug is suited for applications where 316 stainless steel is required for resistance to chlorides, mild acids, and general corrosion in wet or chemical-exposed environments. Typical install scenarios include process piping, fluid handling systems, marine environments, food-service or sanitary adjacent plumbing, and commercial mechanical rooms. The hex head allows for standard wrench engagement during installation and removal, making it practical in tight or high-cycle service locations.

Key Features

• 316 stainless steel construction for superior corrosion resistance in demanding environments
• MNPT threaded connection for direct engagement with female NPT fittings and threaded pipe
• 150 psi pressure rating for standard-duty piping applications
• 1-1/2 inch fitting size covers medium-diameter pipe terminations
• Hex head design allows wrench installation and removal without marring the fitting
• Meets ISO standards for dimensional and performance consistency

Compatibility

Designed as an OEM-style threaded pipe fitting replacement compatible with standard 1-1/2 inch female NPT threaded pipe and fittings in 150-class piping systems.

Installation Notes

Installation is performed by licensed plumbers or pipefitters following applicable IPC and ASME B31 piping codes. Shut off system pressure and drain the line before removing or installing any threaded fitting. Apply an appropriate thread sealant or PTFE tape to the MNPT threads before engagement to prevent leaks. Do not over-torque stainless steel fittings, as galling can occur between mating stainless threads.