Eaton 3326X4 Close Nipple 1/4 Inch Mnptf 1200 Psi

Product Description

The EATON 3326X4 is a close nipple pipe fitting with 1/4 inch male MNPTF (Dryseal) threads on both ends. Close nipples are the shortest possible nipple length, with threads running nearly the full length of the fitting, allowing two female-threaded fittings to be connected with minimal gap between them. This fitting is rated to 1200 psi maximum working pressure and handles a temperature range of -65 degrees F to 250 degrees F. It is used in industrial piping assemblies, pneumatic systems, hydraulic circuits, and fluid transfer applications where a compact male-to-female thread transition or close coupling is required. The overall length is 7/8 inch. Installation is performed by licensed plumbers, pipefitters, or qualified maintenance technicians.

The 3326X4 close nipple is suited for industrial and commercial piping systems operating with compressed air, hydraulic fluid, water, or compatible process fluids within the rated pressure and temperature limits. Its MNPTF thread standard provides a pressure-tight dryseal connection without the need for sealant tape on the threads, though thread sealant practices should follow system-specific requirements and applicable codes.

Key Features

• Close nipple design minimizes installed length for tight-clearance applications
• 1/4 inch MNPTF dryseal male threads on both ends
• 1200 psi maximum working pressure rating
• Operating temperature range of -65 degrees F to 250 degrees F
• Overall length of 7/8 inch

Compatibility

Designed as a standard close nipple replacement for industrial piping systems using 1/4 inch MNPTF female-threaded fittings, valves, or manifolds rated for dryseal thread connections.

Installation Notes

Installation should be performed by a qualified pipefitter, plumber, or maintenance technician. Depressurize and isolate the system fully before removing or installing any pipe fittings. Verify that mating female fittings carry matching MNPTF thread specifications and a compatible pressure rating. Follow applicable codes such as ASME B1.20.3 for dryseal pipe thread connections and all relevant system safety procedures.