Graco 117728 Compression Union 3/8 Fitting

Graco 117728 Compression Union 3/8 – Reliable Connection for High-Pressure Systems

Compatible Machines

• Graco Ultra Max II Series
• Graco GMAX Series
• Graco RTX Texture Sprayers
• Graco LineLazer Series
• Graco HydraMax and DutyMax Models

Product Description

The Graco 117728 Compression Union 3/8 provides leak-free, high-pressure connections for industrial fluid systems. Designed from corrosion-resistant stainless steel, this fitting ensures long-lasting durability and maintains system integrity in demanding airless spraying environments. Its compact, precision-machined design allows quick installation and secure sealing under pressure.

Key Features

• Corrosion-resistant 316 stainless steel construction for longevity.
• Rated up to 6000 PSI for high-pressure spray applications.
• Dual-ferrule design ensures consistent sealing and vibration resistance.
• Compact 3/8" size for tight installation spaces.
• Easy-to-install with standard wrench hex flats.

Technical Specifications

Maintenance Tips

• Inspect regularly for wear or corrosion on ferrules and sealing surfaces.
• Torque to 25–30 ft-lbs during installation to ensure proper compression.
• Clean threads and seal faces before reassembly to prevent leaks.
• Replace worn ferrules promptly to maintain pressure integrity.

Frequently Asked Questions