Parker 25KAIN17MPN Pneumatic Coupler 1/4 in Brass 300 Psi

Product Description

The PARKER 25KAIN17MPN is a pneumatic hose coupler in the Parker 25 Series, designed for compressed air and pneumatic tool connections in industrial and trade applications. Built from brass, it features a 1/4 inch body diameter and a 3/8-18 Female NPSF threaded connection. The high flow interchange design allows maximum airflow with minimal pressure drop, making it well suited for demanding pneumatic circuits. It carries a maximum working pressure of 300 psi and handles temperatures from -4 degrees F to 212 degrees F. Licensed HVAC technicians, pipefitters, and maintenance mechanics install this type of coupler in compressed air distribution systems, pneumatic tool setups, and fluid transfer lines.

This coupler is intended for threaded pneumatic connections where a high flow, 25 Series interchange coupler is required. Typical installations include compressed air systems in commercial and light industrial facilities, service shop pneumatic tool stations, and maintenance operations where consistent airflow and reliable quick-disconnect performance are critical. The brass construction makes it suitable for general-purpose compressed air, as well as some non-corrosive fluid transfer applications within its rated temperature and pressure range.

Key Features

• High flow interchange design minimizes pressure drop across the connection
• Brass body construction for durability in general-purpose pneumatic and fluid service
• 3/8-18 Female NPSF threaded inlet for secure, leak-resistant connection
• 1/4 inch body diameter, part of the Parker 25 Series coupler family
• Rated to 300 psi maximum working pressure
• Operating temperature range: -4 degrees F to 212 degrees F

Compatibility

Designed as an OEM-style replacement or service coupler for pneumatic systems requiring a 25 Series high flow interchange coupler with a 3/8-18 Female NPSF threaded connection and 1/4 inch body diameter.

Installation Notes

Installation should be performed by a qualified mechanic or pipefitter familiar with pneumatic system service. Depressurize the air line completely before removing or installing any coupler. Apply thread sealant appropriate for the service medium to the NPSF threads and tighten to the fitting manufacturer's standard recommendation without over-torquing brass fittings. Verify all connections are leak-free before returning the system to service.