Parker H3E Pneumatic Coupling 3/8-18 Nptf Industrial

Product Description

The PARKER H3E is a steel pneumatic hose coupling connector designed for industrial compressed-air and pneumatic fluid-power systems. It features a female NPTF threaded connection in a 3/8-18 thread size with a 3/8 inch body diameter, giving it a secure, leak-resistant seal without the need for additional sealant tape in most applications. The zinc chromate finish provides corrosion resistance for shop and industrial environments. At 1.69 inches overall length and a maximum working pressure of 300 psi, this connector is built for standard industrial-duty pneumatic line connections. Installation is handled by licensed pipefitters or experienced mechanical technicians.

The H3E is suited for industrial pneumatic systems where Industrial Interchange-standard quick-disconnect couplings are in use. It connects air tools, hose assemblies, and pneumatic equipment in manufacturing, maintenance, and general industrial settings. The threaded body accepts standard NPTF-ported components and mates with Industrial Interchange-standard coupler bodies. This connector is sold individually and is appropriate for new installations or field replacement of worn or damaged coupling connectors on existing pneumatic lines.

Key Features

• Female NPTF 3/8-18 thread for a pressure-tight mechanical seal
• Industrial Interchange-standard connector body for broad cross-brand compatibility
• 300 psi maximum working pressure rated for standard industrial pneumatic service
• Zinc chromate finish resists corrosion in shop and industrial environments
• Steel construction for durability under repeated connect and disconnect cycles
• Compact 1.69 inch overall length suits tight-clearance installations

Compatibility

Designed as an OEM-style replacement or new-installation connector for Industrial Interchange-standard pneumatic coupling systems using 3/8-18 female NPTF threaded connections.

Installation Notes

Depressurize and lock out the pneumatic system before removing or installing any coupling connector. Use an appropriate wrench on the 0.81 inch hex to avoid distorting the body. NPTF threads are designed to seal on the thread form itself, but verify system requirements before applying thread sealant. Follow applicable facility safety procedures and consult OSHA 1910.147 lockout/tagout requirements when servicing pressurized pneumatic lines.