Eaton 3200X4X2 Pipe Adapter 1/4 in Female 1/8 in Male Mnptf

Product Description

The EATON 3200X4X2 is a straight industrial pipe adapter designed to connect a 1/8-inch male NPT thread to a 1/4-inch female NPT thread in a single inline fitting. Rated to 1,200 psi maximum working pressure and a maximum working temperature of 250 degrees F, this adapter handles demanding fluid and pneumatic systems where reliable thread transitions are required. With an overall length of 1-1/16 inches and a 3/4-inch hex, it installs cleanly with standard hand tools. Licensed plumbers, pipefitters, and industrial maintenance techs are the primary installers of this fitting class.

This adapter is suited for residential and commercial plumbing, pneumatic control lines, hydraulic circuits, and industrial fluid transfer applications where a reduction from 1/4-inch female NPT to 1/8-inch male NPT is needed. Its straight MNPTF x FNPTF configuration makes it a common solution for instrument ports, pressure gauge connections, and compressed-air manifold transitions. The fitting meets ASA, ASME, and SAE 130139 standards, making it appropriate for regulated mechanical systems.

Key Features

• 1/8-inch male NPT to 1/4-inch female NPT straight adapter configuration
• 1,200 psi maximum working pressure rating
• Operating temperature range: -65 degrees F to 250 degrees F
• 3/4-inch hex size for standard wrench installation
• Overall length of 1-1/16 inches for compact inline fitment
• Meets ASA, ASME, and SAE 130139 standards

Compatibility

Designed as a standard MNPTF x FNPTF straight pipe adapter suitable for pneumatic, hydraulic, and fluid transfer systems requiring a 1/8-inch male to 1/4-inch female NPT thread transition rated to 1,200 psi.

Installation Notes

Installation is performed by licensed plumbers, pipefitters, or qualified industrial maintenance personnel. Depressurize and isolate the system completely before removing or installing any threaded fittings. Apply thread sealant or PTFE tape appropriate for the fluid and pressure service before threading. Tighten with a properly sized wrench on the hex; do not overtighten threaded NPT connections, as this can crack fittings or distort sealing threads.