1. Introduction
This manual provides essential information for the safe and effective use of the Swagelok QTM Series Quick Connect, model SS-QTM4-D-4PF. This product is designed for reliable and efficient connection and disconnection in various fluid system applications. Please read this manual thoroughly before installation or operation.
This image displays the Swagelok QTM Series Quick Connect, model SS-QTM4-D-4PF. It is a metallic, cylindrical component with a hexagonal base, designed for quick and secure fluid connections. The top part shows a knurled cap and markings like 'QTM4 316', while the hexagonal base is marked 'DESO', indicating its valved design.
2. Product Description and Features
The Swagelok QTM Series Quick Connect SS-QTM4-D-4PF is a high-quality, durable fitting engineered for demanding industrial environments. It features a QTM4 Stem with a DESO-Valved design, ensuring minimal fluid loss upon disconnection. The connection end is a 1/4" Female NPT, providing compatibility with standard piping systems.
- Model: SS-QTM4-D-4PF
- Connection Type: QTM4 Stem (DESO-Valved) x 1/4" Female NPT
- Material: 316 Stainless Steel for superior corrosion resistance and durability.
- Maximum Pressure (Coupled): 3,200 psi (220 bar)
- Maximum Pressure (Uncoupled): 1,000 psi (69 bar)
- Valved Design: Minimizes fluid spillage and air inclusion during connection and disconnection.
3. Safety Information
Always adhere to the following safety guidelines to prevent injury or damage to equipment:
- Ensure the system pressure does not exceed the maximum rated pressure for both coupled and uncoupled states.
- Verify material compatibility with the system fluid to prevent corrosion or degradation.
- Always depressurize the system before attempting to connect or disconnect the quick connect, unless the valved design specifically permits otherwise under controlled conditions.
- Wear appropriate Personal Protective Equipment (PPE), including safety glasses and gloves, during installation and maintenance.
- Do not use damaged or worn components. Inspect the quick connect regularly for signs of wear, cracks, or corrosion.
- Avoid overtightening threaded connections, which can cause damage. Refer to industry standard torque specifications for NPT connections.
4. Setup and Installation
Proper installation is crucial for the performance and longevity of the quick connect.
4.1. Preparation
- Inspect all components for any damage or debris. Ensure the threads are clean and free of burrs.
- Apply a suitable thread sealant (e.g., PTFE tape or liquid sealant) to the male NPT threads of the system piping before connecting to the 1/4" Female NPT end of the quick connect.
4.2. Connecting the Quick Connect to System Piping
- Thread the quick connect body onto the male NPT fitting of your system piping.
- Hand-tighten, then use a wrench to tighten to the recommended torque for 1/4" NPT connections, typically 1/2 to 1 turn past hand-tight, or as specified by your thread sealant manufacturer. Do not overtighten.
4.3. Connecting the Stem to the Body
- Ensure both the stem and body are clean.
- Align the stem with the quick connect body.
- Push the stem firmly into the body until a positive click is heard or felt, indicating that the locking mechanism has engaged.
- Gently pull on the stem to confirm it is securely locked in place.
5. Operating Instructions
The Swagelok QTM Series Quick Connect is designed for ease of use.
5.1. Connecting
To connect, simply push the stem into the body until it locks. The DESO-Valved design minimizes fluid loss during this process.
5.2. Disconnecting
To disconnect, pull back the knurled sleeve on the quick connect body. This will release the locking mechanism, allowing the stem to be pulled free. The DESO-Valved stem will close upon disconnection, limiting fluid release.
6. Maintenance
Regular maintenance ensures optimal performance and extends the life of your quick connect.
- Cleaning: Keep the quick connect clean and free of dirt, dust, and debris. Use a clean cloth and a mild solvent if necessary.
- Inspection: Periodically inspect the quick connect for signs of wear, especially on the O-rings and sealing surfaces. Look for scratches, nicks, or deformation.
- Replacement: If any part of the quick connect appears damaged or worn, replace the entire unit or the specific worn component if a repair kit is available from Swagelok. Do not attempt to repair damaged parts that are not designed for field repair.
- Storage: When not in use, store the quick connect in a clean, dry environment to prevent contamination and corrosion.
7. Troubleshooting
This section addresses common issues you might encounter.
| Problem | Possible Cause | Solution |
|---|---|---|
| Difficulty connecting stem to body | Debris in coupling mechanism; Damaged O-rings; Misalignment; Pressure in system. | Clean components; Inspect and replace O-rings if damaged; Ensure proper alignment; Depressurize system before connecting. |
| Leakage after connection | Improper connection; Damaged O-rings or seals; Exceeded pressure rating; Incorrect thread sealant. | Ensure stem is fully engaged; Inspect and replace O-rings/seals; Verify system pressure is within limits; Reapply thread sealant correctly. |
| Difficulty disconnecting | Pressure in system; Debris in mechanism; Damaged locking mechanism. | Depressurize system; Clean components; Inspect and replace quick connect if locking mechanism is damaged. |
8. Specifications
Key specifications for the Swagelok QTM Series Quick Connect SS-QTM4-D-4PF:
- Model Number: SS-QTM4-D-4PF
- Brand: Swagelok
- Connection Type: QTM4 Stem (DESO-Valved) x 1/4" Female NPT
- Material: 316 Stainless Steel
- Maximum Pressure (Coupled): 3,200 psi
- Maximum Pressure (Uncoupled): 1,000 psi
- Item Weight: 1 Pound
- Manufacturer: Swagelok
- ASIN: B0D6C35VS3
- Date First Available: June 6, 2024
9. Warranty and Support
For detailed 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, backed by comprehensive support services.
