Parker 3SC3-316 Compression Tube Union Stainless Steel

Product Description

The PARKER 3SC3-316 is a stainless steel compression tube union designed to join two compression-end tubing runs in a single inline connection. Rated to 10300 psi maximum working pressure and capable of handling temperatures from -425 degrees F to 1200 degrees F, this union is built for demanding fluid and gas handling systems. The 316 stainless steel construction provides strong resistance to corrosion and oxidation. It is typically installed by licensed plumbers, pipefitters, and mechanical contractors working on high-pressure instrumentation, process, or industrial tubing systems.

This compression union suits applications where a reliable, leak-resistant tube joint is required without welding or threading. The compression x compression end configuration allows direct connection of tubing on both sides using standard compression ferrules. Typical install scenarios include instrumentation lines, chemical process piping, cryogenic systems, and high-temperature industrial service lines where stainless steel is specified for corrosion or temperature resistance.

Key Features

• 10300 psi maximum working pressure for high-pressure service
• Operating temperature range of -425 degrees F to 1200 degrees F
• 316 stainless steel construction for corrosion and oxidation resistance
• Compression x compression end connections on both sides
• Inline union design for straight tubing runs without threading or welding

Compatibility

Designed as an OEM-style replacement or new-installation compression tube union for high-pressure instrumentation and process tubing systems requiring stainless steel fittings with compression-style end connections.

Installation Notes

Installation should be performed by a qualified pipefitter or plumber following applicable codes such as ASME B31.3 for process piping. Depressurize and isolate the tubing line completely before disassembly or fitting installation. Ensure tubing ends are cut square and free of burrs before seating the ferrules. Do not over-torque the compression nut, as this can deform the ferrule and compromise the seal.