Overview

Di-Ad™ Direct Adaptive HPLC Connectors are designed to provide universal compatibility with standard 1/16-inch tubing and 10-32 chromatography ports. Proper ferrule maintenance is important for preserving leak-free connections, minimizing dead volume, and maintaining chromatographic performance.

Over time, repeated tubing insertions can cause ferrule wear. Replacing worn ferrules helps ensure consistent sealing and reliable operation.

When to Replace a Ferrule

Ferrules should be inspected periodically and replaced when:

• Excessive wear is visible
• Sealing performance declines
• Connection reliability is reduced
• Approximately 50 tubing insertions have been completed

Replacement intervals may vary depending on operating conditions and frequency of use.

Ferrule Removal Procedure

Step 1

   Locate the groove in the installed ferrule.

Step 2

   Using a pair of wire cutters or similar hand tool, gently grasp the ferrule at the groove.

Step 3

   Apply only enough pressure to grip the ferrule without excessively deforming it.

Step 4

   Carefully pull the ferrule from the threaded stem.

If necessary, use a gentle back-and-forth motion while pulling to assist removal.

Ferrule Installation Procedure

Step 1

    Insert a new ferrule into the threaded stem of the connector.

Step 2

   Thread the connector into a column port or compatible fitting.

Step 3

   Tighten the connector sufficiently to properly seat the new ferrule.

The ferrule will automatically align as the connector is installed.

Benefits of Proper Ferrule Maintenance

Routine ferrule replacement helps:

• Maintain low-dead-volume connections
• Support leak-free operation
• Improve tubing alignment
• Reduce connection-related band broadening
• Preserve chromatographic efficiency

Properly maintained fittings are especially important at critical connections such as injector-to-column and column-to-detector interfaces.

Di-Ad™ Connector Specifications

Di-Ad™ HPLC connectors are designed for:

• Universal compatibility with 1/16-inch tubing
• Standard 10-32 chromatography ports
• Column-to-column connections
• Column-to-guard connections
• High-pressure liquid chromatography systems

Maximum Operating Pressure:  10,000 psi

Key Takeaways

• Replace ferrules when excessive wear is observed or after approximately 50 insertions.
• Remove ferrules carefully using minimal gripping force.
• Install new ferrules by inserting them into the threaded stem and seating them in a column port.
• Proper ferrule maintenance supports leak-free, low-dead-volume connections.
• Di-Ad™ connectors are compatible with standard 1/16-inch tubing and 10-32 ports with pressure ratings up to 10,000 psi.

For Di-Ad™ connector specifications, compatibility information, product images, and ordering information, view Di-Ad™ Column Connector Specifications, Compatibility Information, Product Images, and Ordering Information.