Dixon dc21 Pneumatic Industrial Interchange Coupler Brass

Product Description

The DIXON dc21 is a semi-automatic, straight-body pneumatic quick-connect coupler built to the Industrial Interchange design standard. Constructed from brass, it features a 1/4 inch Male NPT inlet and a 1/4 inch Female ISO-6150 Series B Industrial Interchange socket end. The coupler shuts off automatically when disconnected, preventing uncontrolled air release and helping to maintain line pressure integrity. It is installed by HVAC technicians, industrial mechanics, and pneumatic system technicians working with compressed air tool lines, hose assemblies, and shop air distribution systems.

This coupler is suited for use in industrial and commercial compressed air applications where a reliable, semi-automatic quick-connect fitting is required. Because it follows the Industrial Interchange design, it will mate with many other makes and brands of Industrial Interchange couplers and plugs. Pressure rating on hose assemblies is the lower of either the coupling rating or the hose rating at 70 degrees F. It is commonly used in tool rooms, service bays, and production floor air lines.

Key Features

• Semi-automatic shut-off when disconnected, reducing air waste and improving safety
• Industrial Interchange design interchanges with many other manufacturer couplers and plugs
• Straight body orientation for direct inline installations
• Brass construction for corrosion resistance in compressed air service
• 1/4 inch Male NPT thread for standard pipe and hose assembly connections
• 1/4 inch Female ISO-6150 Series B socket end for broad plug compatibility

Compatibility

Designed to interchange with many Industrial Interchange style couplers and plugs from other manufacturers. Compatible with standard 1/4 inch Male NPT hose assemblies and compressed air fittings following the Industrial Interchange design.

Installation Notes

Installation is performed by qualified pneumatic or mechanical technicians. Depressurize and bleed the air line completely before removing any existing coupler or fitting. Apply thread sealant appropriate for pneumatic service to the NPT threads before installation. Verify that the operating pressure of the assembled hose and coupler system does not exceed the lower pressure rating of either component at the service temperature.

Technical Specifications

• Material: Brass
• Body Size: 1/4 inch
• Inlet Thread: 1/4 inch Male NPT
• Socket End: 1/4 inch Female ISO-6150 Series B Industrial Interchange
• Shape (Orientation): Straight
• Operation Type: Semi-Automatic
• Rated Temperature: 70 degrees F

Standard Information

• Brand: DIXON
• Manufacturer Part Number: dc21