Parker B34F Pneumatic Hose Coupler 3/8 in Brass 300 Psi

Product Description

The PARKER B34F is a brass pneumatic hose coupler designed for industrial compressed-air and pneumatic fluid systems. Built to the Industrial Interchange (Series 30) standard, it accepts a 1/2-14 male NPTF threaded connection and features a 3/8 inch body diameter. The coupler is rated to 300 psi maximum working pressure and handles temperatures from -40 degrees F to 250 degrees F, making it suitable for year-round service in demanding shop and field environments. Licensed HVAC technicians, pipefitters, and industrial maintenance trades install this type of fitting when connecting pneumatic hoses, tools, and control lines.

The B34F fits standard Industrial Interchange (Series 30) pneumatic systems commonly found in manufacturing facilities, mechanical rooms, and commercial service environments. Its 1/2-14 NPTF thread provides a pressure-tight, dryseal connection without the need for additional thread sealant, though sealant may be applied per site practice. At 0.41 pounds and 2.57 inches overall length, it is a compact, drop-in replacement suitable for tight quarters and high-cycle applications.

Key Features

• Industrial Interchange Series 30 standard for broad cross-compatibility with existing pneumatic infrastructure
• Brass construction resists corrosion in air, mild fluid, and humidity-exposed service environments
• 1/2-14 male NPTF dryseal thread delivers a leak-resistant, pressure-tight connection
• 300 psi maximum working pressure suits typical shop-air and pneumatic control applications
• Wide temperature range of -40 degrees F to 250 degrees F supports both cold-start and high-heat conditions
• Compact 2.57 inch overall length fits congested manifold and tooling installations

Compatibility

Designed as an OEM-style replacement coupler for Industrial Interchange Series 30 pneumatic systems using 3/8 inch body couplers with 1/2-14 NPTF male threaded connections.

Installation Notes

Depressurize and lock out the pneumatic system before removing or installing any coupler. Use a wrench on the hex flats — the hex size is 0.88 inches — and do not grip the coupler body directly to avoid deformation. NPTF dryseal threads are designed to seal on thread engagement; inspect threads for damage before installation. Follow applicable site safety procedures and any relevant compressed-air piping codes for the jurisdiction.