Parker 1 Gg-s Pipe Coupling 3000 Psi 1 Inch Fnptf

Product Description

The PARKER 1 GG-S is a straight pipe coupling designed for high-pressure fluid and pneumatic systems in industrial and commercial applications. It features a 1-inch female thread with FNPTF (Female National Pipe Taper Fuel) connections on both ends, rated to a maximum working pressure of 3,000 psi. The coupling measures 1.875 inches in overall length with a 1.625-inch hex size, making it compatible with standard wrenching in tight installations. This fitting is typically installed by licensed pipefitters, industrial maintenance technicians, and mechanical contractors working on hydraulic lines, pneumatic circuits, or high-pressure fluid distribution systems.

This coupling is suited for straight inline connections in industrial piping systems where a reliable threaded joint is required. The FNPTF thread form provides a pressure-tight seal on the threads themselves, reducing reliance on additional sealant in many applications. Common install scenarios include hydraulic power units, compressed air headers, fuel supply lines, and manifold assemblies in manufacturing and process environments. Its compact overall length makes it a practical choice where space along a run is limited.

Key Features

• 3,000 psi maximum working pressure for demanding high-pressure service
• FNPTF female thread connection on both ends for inline straight coupling
• 1-inch female thread size fits standard 1-inch NPT pipe and fittings
• 1.875-inch overall length for compact inline installation
• 1.625-inch hex size allows use of standard open-end or adjustable wrenches

Compatibility

Designed as an OEM-style replacement or direct-fit coupling for industrial piping systems using 1-inch FNPTF threaded connections rated to 3,000 psi.

Installation Notes

Installation should be performed by a qualified pipefitter or mechanical technician following applicable codes such as ASME B31.3 for process piping. Depressurize and isolate the system completely before removing or installing any threaded fitting. Apply thread sealant or PTFE tape in accordance with the system fluid compatibility and manufacturer guidance. Do not over-torque threaded fittings, as this can damage the thread form and compromise the seal.