Instruction Manual for Swagelok SS-600-6 Tube Fitting Union

1. Product Overview

The Swagelok SS-600-6 is a high-quality stainless steel tube fitting union designed for reliable, leak-tight connections in various fluid systems. This union is specifically engineered for 3/8 inch outside diameter (OD) tubing and has a length of 1.77 inches. It is suitable for applications requiring robust and corrosion-resistant connections.

Figure 1: A collection of Swagelok SS-600-6 tube fitting unions. The image displays several individual fittings, some arranged in a stack, highlighting their compact and uniform design. Two fittings are shown separately on the left, demonstrating their full form.

2. Setup and Installation

2.1 Safety Precautions

• Ensure the system is depressurized and drained before installation.
• Wear appropriate personal protective equipment (PPE), including safety glasses and gloves.
• Handle fittings carefully to avoid damage to sealing surfaces.

2.2 Required Tools

• Two wrenches of appropriate size for the fitting nuts.
• Tube cutter (for preparing tubing ends).
• Deburring tool (for preparing tubing ends).
• Swagelok gap inspection gauge (recommended for proper pull-up).

2.3 Installation Steps

1. Prepare Tubing: Cut the tubing squarely and remove all burrs from both the inside and outside diameters. Ensure the tubing ends are clean and free of scratches.
2. Insert Tubing: Insert the tubing into the fitting until it bottoms out against the shoulder.
3. Finger-Tighten Nut: Finger-tighten the nut.
4. Mark Nut: Mark the nut at the 6 o'clock position.
5. Tighten Nut: While holding the fitting body steady with a backup wrench, tighten the nut 1 1/4 turns with a wrench. For 1/16, 1/8, and 3/16 inch fittings, tighten 3/4 turn.
6. Inspect Gap (Optional but Recommended): Use a Swagelok gap inspection gauge to ensure proper pull-up. The gauge should not enter the gap between the nut and the fitting body.

3. Operating Considerations

Once installed, the Swagelok SS-600-6 union provides a secure connection for fluid transfer. It is designed for static applications where the connection remains undisturbed. Ensure that the operating pressure and temperature of your system do not exceed the rated limits for stainless steel tubing and fittings. Refer to Swagelok's general catalog for detailed pressure and temperature ratings based on tubing material and wall thickness.

4. Maintenance

Swagelok tube fittings are designed for long-term, reliable service with minimal maintenance. However, periodic inspection is recommended to ensure continued integrity of the system.

4.1 Inspection

• Visually inspect fittings for any signs of corrosion, damage, or leaks.
• Check for proper alignment of tubing and fittings.
• Ensure all connections remain tight. Do not overtighten.

4.2 Cleaning

Clean the exterior of the fitting as needed using a mild detergent and water. Avoid abrasive cleaners or solvents that could damage the stainless steel finish.

4.3 Reassembly (if disconnected)

If a fitting is disconnected, it can typically be reassembled. When reassembling, insert the tubing into the fitting until the ferrules seat. Tighten the nut slightly with a wrench until it is finger-tight, then turn it approximately 1/4 turn past finger-tight. Always ensure the tubing is fully bottomed out before tightening.

5. Troubleshooting

5.1 Leaks

• Issue: Leak at the fitting connection.
• Possible Cause 1: Insufficient tightening during initial installation.
  Solution: Depressurize the system. While holding the fitting body, tighten the nut an additional 1/8 to 1/4 turn. Do not overtighten.
• Possible Cause 2: Damaged tubing or fitting components (e.g., scratched tubing, damaged ferrules).
  Solution: Depressurize the system. Disassemble the fitting and inspect the tubing end and fitting components. Replace damaged parts or re-prepare tubing if necessary.
• Possible Cause 3: Incorrect tubing material or size.
  Solution: Verify that the tubing material and outside diameter match the fitting specifications.

6. Specifications

7. Warranty and Support

Swagelok products are manufactured to high standards of quality and reliability. For specific warranty information and technical support, please refer to the official Swagelok website or contact an authorized Swagelok distributor. Always ensure you are using genuine Swagelok components for optimal performance and safety.

For further assistance, please visit: www.swagelok.com