Merit Brass 3612D-1204 Pipe Reducer 3/4 X 1/4 in Ss 3000 Psi

Product Description

The MERIT BRASS 3612D-1204 is a threaded pipe reducer fitting designed to connect a 3/4-inch female pipe thread to a 1/4-inch female pipe thread in a single inline transition. Constructed from 316/316L stainless steel, this reducer delivers a pressure rating of 3,000 psi and a body length of 2 inches. The dual-grade 316/316L alloy provides strong corrosion resistance in demanding environments, including exposure to chlorides, chemicals, and moisture. Plumbers, pipefitters, and industrial maintenance technicians install this fitting in process piping, instrumentation lines, and fluid handling systems where a reliable reduction in pipe diameter is required.

This reducer is suited for residential and commercial plumbing, industrial process lines, and instrumentation piping where a step-down from 3/4-inch to 1/4-inch pipe is needed. The FNPT x FNPT connection on both ends accepts male-threaded pipe or nipples on each side, making it compatible with standard NPT pipe assemblies. Typical applications include hydraulic lines, compressed air systems, steam service within rated limits, and chemical transfer piping where stainless steel material compatibility is required.

Key Features

• 316/316L dual-grade stainless steel construction for corrosion resistance in harsh and wet environments
• 3,000 psi pressure rating suitable for high-pressure fluid and gas service
• FNPT x FNPT end connections accept standard NPT male-threaded fittings on both ends
• 3/4-inch to 1/4-inch reduction in a compact 2-inch body length
• Single-piece threaded body with no gaskets or seals to degrade over time

Compatibility

Designed as an OEM-style threaded pipe reducer for standard NPT piping systems requiring a 3/4-inch to 1/4-inch female-to-female inline transition in 316/316L stainless steel.

Installation Notes

Installation is performed by a licensed plumber or pipefitter following applicable IPC and ASME B1.20.1 thread standards. Shut off and depressurize the piping system completely before removing or installing any threaded fitting. Apply an appropriate thread sealant or PTFE tape rated for the service fluid and pressure before making up the threads. Do not over-tighten, as excessive torque can crack or distort stainless steel threaded fittings.