Parker B52 Pneumatic Coupler 1/4-18 Npt Aro Brass 300 Psi

Product Description

The PARKER B52 is a brass pneumatic hose coupler designed for quick-connect and disconnect of compressed air and pneumatic tool lines. Built to ARO interchange standards, it threads onto 1/4-18 MNPT fittings and delivers a rated working pressure of 300 psi across a temperature range of -40 degrees F to 250 degrees F. The 1/4 inch body diameter and 2.05 inch overall length make it a compact, reliable choice for connecting air hoses, compressors, and pneumatic tools in shop, industrial, and field service environments. Licensed plumbers, mechanical contractors, and industrial maintenance technicians install this type of coupler as a standard service fitting.

The B52 coupler is suited for compressed air distribution systems where ARO-style interchange is the shop or facility standard. Typical applications include connection of pneumatic impact wrenches, air ratchets, blow guns, and similar tools to shop air lines. The threaded MNPT connection is compatible with standard iron pipe thread fittings found on air compressor outlets, manifolds, and drop lines. The brass construction resists corrosion in humid shop and outdoor service environments, making it a durable choice for both fixed installations and portable compressor setups.

Key Features

• ARO interchange standard for broad compatibility with ARO-style couplers and plugs
• 1/4-18 MNPT threaded connection for standard pipe thread fitment
• 300 psi maximum working pressure rated for typical shop air systems
• Brass construction provides corrosion resistance in wet and humid environments
• Operating temperature range of -40 degrees F to 250 degrees F suits most indoor and outdoor applications
• Compact 2.05 inch overall length with 0.75 inch hex for wrench installation

Compatibility

Designed as an OEM-style replacement or new-installation coupler for pneumatic systems using ARO interchange fittings with 1/4-18 MNPT threaded connections.

Installation Notes

Installation is performed by qualified mechanical or industrial maintenance technicians. Depressurize and bleed the air line completely before removing or installing any pneumatic coupling. Apply thread sealant tape or compound rated for compressed air service to the MNPT threads before assembly. Tighten using an appropriately sized wrench on the 0.75 inch hex; do not overtighten brass fittings as the material is susceptible to thread damage under excess torque.