5/8 inch Brass Compression Union Compression x Compression

5/8 inch Brass Compression Union – Machined for Precision and Durability

The 5/8 inch Brass Compression Union is designed to provide a secure, metal-to-metal seal in non-soldered connections, making it suitable for joining copper, brass, aluminum, or plastic tubing in a range of applications. Manufactured from lead-free brass, this fitting is compliant with potable water codes and offers strong resistance to corrosion and mechanical stress.

Features and Performance Benefits

• ✅ Lead-Free Brass – Complies with federal and state standards for safe use in potable water systems.
• ✅ Compression Connection – Ideal for use where soldering is impractical or prohibited.
• ✅ Reusability – The union can be disassembled and reassembled without degradation, which is useful during retrofits or maintenance.
• ✅ High Precision Threads – Ensures a tight, vibration-resistant seal that reduces risk of leaks under pressure.
• ✅ Non-Flame Installation – Eliminates the need for torch soldering, making it suitable for installations near sensitive surfaces or in confined spaces.

Technical Specifications

• Material: Lead-free brass (compliant with NSF/ANSI 61 and 372)
• Size: 5/8 inch nominal tubing connection
• Connection Type: Compression x Compression
• Operating Pressure: Rated for up to 200 PSI, depending on tubing and system specifications
• Temperature Range: Suitable for temperatures up to 250°F in typical service conditions

Installation Notes

Install using standard open-end wrenches. No special tooling is required. The fitting must be aligned correctly to ensure the compression sleeve seats evenly against the tubing and the body. Do not overtighten. For optimal performance, use with ASTM B88 copper tubing or equivalent material rated for compression service.

Typical Applications

The 5/8 inch Brass Compression Union is commonly specified in:

• Potable water distribution systems
• Refrigeration and air conditioning line sets
• Low-pressure hydraulic and pneumatic control lines
• Commercial and residential plumbing applications where soldering is not feasible

Compliance and Standards

This fitting meets applicable industry standards for lead-free plumbing systems, including:

• NSF/ANSI 61 – Drinking Water System Components
• NSF/ANSI 372 – Lead Content Compliance
• AB1953 and other low-lead state requirements