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The MERIT BRASS 3612D-3216 is a threaded pipe reducer fitting machined from 316/316L stainless steel for high-pressure plumbing and piping systems. It reduces from a 2-inch female NPT inlet to a 1-inch female NPT outlet, making it suitable for inline size transitions in demanding service environments. Rated at 3,000 psi, this fitting handles high-pressure fluid and gas service without compromise. At 3.375 inches in length and weighing 5.37 pounds, it is a solid, full-body fitting built for long service life in corrosive or sanitary applications. Plumbers and pipefitters working in industrial, commercial, or marine environments rely on this grade of stainless steel for its resistance to chloride environments and chemical exposure.
This reducer is used in industrial piping, process systems, and commercial plumbing where a transition from 2-inch to 1-inch pipe is required and threaded connections are specified. The FNPT x FNPT configuration accepts standard NPT-threaded pipe on both ends. The 316/316L dual-grade material makes it a common choice for chemical processing, food service, marine, and pharmaceutical piping runs where corrosion resistance and pressure integrity are critical requirements.
Designed as an OEM-style threaded reducer for use in standard NPT piping systems requiring a 2-inch to 1-inch size transition with 316 or 316L stainless steel material specifications.
Installation is performed by licensed plumbers or pipefitters in accordance with applicable codes such as the International Plumbing Code or applicable ASME B31 piping standards. Depressurize and isolate the line completely before disassembling any existing fittings. Apply an appropriate thread sealant rated for the fluid service and pressure rating of the system. Hand-tighten first, then use a pipe wrench for final engagement; do not overtighten, as this can crack or distort the fitting threads.
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