Merit Brass 3612D-0402 Pipe Reducer 1/4x1/8 Fnpt 3000 Psi

Product Description

The MERIT BRASS 3612D-0402 is a threaded pipe reducer fitting designed to transition between 1/4 inch and 1/8 inch pipe sizes within a piping system. Constructed from 316/316L stainless steel, this reducer delivers strong corrosion resistance and is rated for service up to 3,000 psi. Both ends feature female NPT (FNPT) connections, allowing direct threaded installation without additional adapters. Plumbers, pipefitters, and mechanical contractors install this type of reducer when reducing pipe diameter between distribution lines and instrumentation or equipment ports in industrial, commercial, and process piping applications.

This fitting is suited for use in fluid handling, pneumatic, and process piping systems where corrosion resistance and high-pressure performance are required. The 316/316L dual-grade stainless construction makes it appropriate for applications involving moisture, mild chemicals, or environments where standard carbon steel would corrode prematurely. It is commonly used in tight-space installations where a compact, all-threaded reducer simplifies assembly.

Key Features

• 316/316L stainless steel construction for superior corrosion resistance
• Rated to 3,000 psi for high-pressure fluid and pneumatic service
• FNPT x FNPT threaded ends for direct pipe installation without adapters
• Reduces from 1/4 inch to 1/8 inch pipe size in a single fitting
• Compact form factor suitable for tight-space piping layouts

Compatibility

Designed as an OEM-style threaded pipe reducer for use in 1/4 inch to 1/8 inch FNPT piping systems requiring 316 or 316L stainless steel construction and a 3,000 psi pressure rating.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter following applicable IPC and facility piping codes. Depressurize and isolate the line before removing any existing fitting or installing this reducer. Apply an appropriate thread sealant or PTFE tape to the male threads mating with this fitting. Do not over-torque stainless steel threaded fittings, as galling can occur; use proper tooling and technique for stainless connections.