Stainless Steel SU-8 – 1/2 in. Tube OD Union

The SU-8 is a 1/2" compression union built for clean, inline connections between stainless steel tubing in pressure-rated and sanitary environments. Precision-machined from 316 stainless steel, this fitting uses a dual-ferrule compression design to provide leak-tight performance with excellent tube alignment—even under vibration or thermal cycling.

Ideal for Clean-in-Place (CIP) systems, hygienic loops, lab setups, and OEM fluid control panels, the SU-8 delivers high-integrity sealing without the need for welding or thread sealants. It’s a drop-in fit for Swagelok® style systems and built to hold up in demanding gas, liquid, or sampling lines.

Whether you’re routing purified water, compressed gas, or chemical media, the SU-8 offers a compact, secure solution for repeatable, maintenance-friendly connections.

Key Benefits

• Seal: Dual-ferrule compression technology delivers consistent, leak-free sealing
• Fit: Compact union body maintains precise tube alignment in tight layouts
• Durability: Built to handle vibration, pressure cycling, and CIP cleaning
• Compatibility: Works with 1/2" stainless tubing and Swagelok® style fittings
• Material: 316 stainless steel supports hygienic, chemical, and industrial systems

Typical Applications

• Sanitary stainless steel tubing systems
• Clean-in-Place (CIP) and hygienic process lines
• OEM instrumentation and panel builds
• Gas handling, fuel delivery, and lab setups
• Water purification and high-purity sampling systems

Looking for a Swagelok® alternative 1/2" union? The SU-8 delivers a secure seal, corrosion resistance, and easy installation for high-performance fluid systems.