Product Overview
The Swagelok QC Series Quick Connect, model SS-QC6-S-6PFK2, is a high-quality quick-connect stem designed for reliable fluid system connections. This specific model features a QC6 stem (SESO-No Valve) with a 3/8" Female NPT connection, constructed from 316 stainless steel, and is keyed "Black" for proper system integration. It is engineered for applications requiring quick and secure connections without the need for tools, ensuring efficient operation and system integrity.
Image: Swagelok QC Series Quick Connect Stem (SS-QC6-S-6PFK2) in its packaging. This image displays the stainless steel quick connect stem with an orange band, packaged in a clear plastic bag, showing the "Swagelok" logo faintly visible through the bag.
Safety Information
Always ensure that the system pressure is within the specified limits for both coupled and uncoupled states. Refer to the specifications section for maximum pressure ratings. Use appropriate personal protective equipment (PPE) when handling and installing the quick connect. Do not attempt to connect or disconnect under pressure unless the system is designed for such operation and proper safety protocols are followed. Ensure compatibility with system fluids and materials.
Setup and Installation
- Inspect Components: Before installation, visually inspect the quick connect stem for any damage, debris, or missing components. Ensure the threads are clean and free from burrs.
- Prepare Connection Point: Ensure the female NPT connection point on your system is clean and properly prepared for threading.
- Apply Thread Sealant (if necessary): If required for your application, apply an appropriate thread sealant to the male NPT threads of the quick connect stem. Follow the sealant manufacturer's instructions.
- Thread Engagement: Carefully thread the quick connect stem into the female NPT connection. Hand-tighten first to ensure proper thread alignment.
- Final Tightening: Using an appropriate wrench, tighten the quick connect stem to the recommended torque specifications for NPT connections to ensure a leak-tight seal. Avoid over-tightening, which can damage threads.
- System Integration: Ensure the keyed "Black" feature aligns with the corresponding quick connect body to prevent accidental intermixing of incompatible fluid lines.
Operating Instructions
Connecting the Quick Connect
- Align Components: Ensure the quick connect stem (this product) is properly aligned with the corresponding Swagelok QC Series quick connect body. Verify that the "Black" keying aligns.
- Push to Connect: Push the stem firmly into the body until a positive click is felt or heard, indicating that the connection is fully engaged.
- Verify Connection: Gently pull on the connected components to ensure they are securely latched and cannot be easily separated.
Disconnecting the Quick Connect
- Depress Sleeve: Grasp the quick connect body's sleeve and depress it firmly towards the body.
- Pull Apart: While holding the sleeve depressed, pull the stem away from the body to disconnect.
- Release Sleeve: Once disconnected, release the sleeve.
Note: This QC6 stem is a SESO (Single-End Shutoff) type with no valve. When disconnected, fluid will flow from the stem side if under pressure. Ensure system is depressurized or isolated before disconnecting if fluid loss is undesirable.
Maintenance
- Regular Inspection: Periodically inspect the quick connect stem for signs of wear, corrosion, or damage, especially on the sealing surfaces and locking mechanism.
- Cleaning: Keep the quick connect clean and free from dirt, dust, and foreign particles. Use a clean, lint-free cloth. Avoid abrasive cleaners.
- Lubrication: Consult Swagelok's official documentation for specific lubrication recommendations, if any, for the QC Series. Generally, quick connects are designed for minimal maintenance.
- Seal Replacement: If leaks occur or seals appear worn, replace the quick connect or its internal seals according to Swagelok's guidelines. Do not attempt unauthorized repairs.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Difficulty connecting | Misalignment, debris, damaged components, incorrect keying. | Ensure proper alignment and keying. Clean components. Inspect for damage. |
| Difficulty disconnecting | Sleeve not fully depressed, internal wear, pressure lock. | Ensure sleeve is fully depressed. Check for internal damage. Depressurize system if applicable. |
| Leakage after connection | Damaged seals, improper connection, debris, excessive pressure. | Disconnect and reconnect. Inspect seals for damage and replace if necessary. Clean components. Verify system pressure. |
| Fluid loss upon disconnection | Expected behavior for SESO (Single-End Shutoff) stem. | This model (SESO-No Valve) does not shut off flow from the stem side when disconnected. Ensure system is depressurized or isolated before disconnecting. |
Specifications
- Model Number: SS-QC6-S-6PFK2
- Series: QC Series Quick Connect
- Type: QC6 Stem (SESO-No Valve)
- Connection: 3/8" Female NPT
- Material: 316 Stainless Steel
- Keying: "Black" (K1 Option)
- Maximum Pressure Coupled: 1,500 psi
- Maximum Pressure Uncoupled: 250 psi
- Item Weight: 16 ounces
- Manufacturer: Swagelok
Warranty and Support
For warranty information and technical support, please refer to the official Swagelok website or contact your authorized Swagelok distributor. Swagelok products are known for their quality and reliability, and support is available through their global network.
Official Swagelok Website: www.swagelok.com
