Merit Brass 3617HD-24 Hex Plug 1-1/2 in 316 Ss Mnpt 3000 Psi

Product Description

The MERIT BRASS 3617HD-24 is a heavy-duty hex plug fitting designed to close off threaded pipe ends in industrial and commercial plumbing systems. Machined from 316/316L dual-certified stainless steel, this hex plug offers excellent corrosion resistance in harsh environments, including chemical process lines, marine applications, and high-moisture installations. The male NPT (MNPT) threaded connection allows for a secure, leak-free seal when properly installed. Rated to 3,000 psi, it is suited for high-pressure service applications where material integrity and thread engagement are critical. Licensed plumbers and pipefitters typically specify this fitting in process piping and specialty fluid systems.

This hex plug is sized at 1-1/2 inches and is intended for use in threaded pipe systems requiring a durable, corrosion-resistant plug. The 316/316L stainless steel construction makes it a strong choice in environments exposed to chlorides, acids, or other corrosive media. Typical install scenarios include capping unused branch outlets, sealing hydrostatic test ports, or permanently closing off pipe ends in process, HVAC, and industrial plumbing systems. It is sold individually and is appropriate for both new construction and maintenance or repair work.

Key Features

• Dual-certified 316/316L stainless steel construction for superior corrosion resistance
• 3,000 psi pressure rating suitable for high-pressure pipe systems
• MNPT threaded end connection for standard threaded pipe fitment
• 1-1/2 inch fitting size for common pipe branch and outlet applications
• Hex head design allows wrench tightening for secure, leak-free installation

Compatibility

Designed as an OEM-style replacement or new-installation component for 1-1/2 inch MNPT threaded pipe systems requiring a stainless steel hex plug closure.

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 pipe system completely before installing or removing any threaded fitting. Apply appropriate thread sealant or PTFE tape to the male threads prior to engagement. Do not over-torque the fitting, as this can damage threads or compromise the seal.