Coilhose Pneumatics 3401 3/4 Inch Mnpt Pneumatic Coupling

Product Description

The COILHOSE PNEUMATICS 3401 is a male NPT pneumatic hose coupling designed for Industrial Interchange-style compressed air systems. Built from nickel-plated steel, this connector provides a corrosion-resistant, durable connection point at the hose or tool interface. The 3/4 inch MNPT thread engages standard NPT-tapped ports and manifolds, and the 3/4 inch body diameter matches common Industrial Interchange receiver sockets. It is typically installed by industrial maintenance technicians, construction air tool operators, and mechanical contractors working with high-volume pneumatic circuits.

This coupling fits applications where Industrial Interchange-type quick-connect components are specified, including plant floor pneumatic distribution, construction air tools, and compressor outlet drops. The MNPT thread style allows direct installation into tool inlets, hose fittings, or manifold ports without adapters in most standard setups. The nickel-plated finish adds resistance to light corrosion and surface wear, making it suitable for both indoor shop environments and covered outdoor work areas.

Key Features

• Industrial Interchange coupling type for broad tool and hose compatibility within that style
• 3/4 inch MNPT thread for direct connection to standard NPT-tapped ports
• 3/4 inch body diameter matches standard Industrial Interchange receiver sockets
• Nickel-plated steel construction for corrosion resistance and long service life
• Threaded connection type ensures a secure, vibration-resistant fit

Compatibility

Designed as a replacement or inline connector for Industrial Interchange-style pneumatic systems using 3/4 inch MNPT-threaded ports. Consult system documentation to confirm coupling style and thread size before installation.

Installation Notes

Installation is performed by qualified mechanical or pneumatic technicians. Depressurize and lock out the compressed air supply completely before installing or removing any coupling. Apply thread sealant tape rated for pneumatic service to the MNPT threads and tighten to fitting manufacturer specifications using an appropriately sized pipe wrench. Do not over-tighten, as steel NPT threads can damage mating ports if excessive torque is applied.