Coilhose Pneumatics 3402 Pneumatic Hose Coupling 3/4 in

Product Description

The COILHOSE PNEUMATICS 3402 is a pneumatic hose coupling connector designed for use in compressed air distribution systems. Built with a 3/4-inch body diameter and 3/4-inch female NPT (FNPT) threaded connection, this coupling provides a secure, leak-resistant interface between air hoses and pneumatic tools or equipment. The steel construction with nickel-plated finish delivers resistance to corrosion and mechanical wear in demanding shop and industrial environments. Licensed HVAC technicians, pipefitters, and industrial mechanics working with compressed air systems rely on this type of fitting for quick, reliable connections.

This connector is suited for residential shop setups, commercial facilities, and light industrial applications where Industrial Interchange-type couplings are the standard. The threaded FNPT connection allows installation directly onto compatible air hose fittings, compressor outlets, manifolds, and pneumatic tool ports. It is commonly used wherever a dependable, standardized air coupling is required in an existing Industrial Interchange system.

Key Features

• 3/4-inch body diameter sized for high-flow compressed air applications
• 3/4-inch FNPT threaded connection for standard pipe thread compatibility
• Industrial Interchange coupling type for broad system compatibility
• Steel construction with nickel-plated finish for corrosion resistance
• Threaded connection type ensures secure, pressure-holding fit

Compatibility

Designed as an OEM-style replacement or addition for pneumatic systems using Industrial Interchange-type couplings with 3/4-inch FNPT threaded ports.

Installation Notes

Installation is typically performed by pipefitters, HVAC technicians, or qualified mechanics working on compressed air distribution systems. Depressurize and bleed the air line completely before removing or installing any coupling. Apply thread sealant tape or compound appropriate for compressed air service to the FNPT threads to prevent leaks. Follow local compressed air system codes and OSHA regulations for safe operating pressure limits.