1. Product Overview
The Cornat TEC317412 is a high-quality basin strainer valve designed for washbasins. It features a durable brass construction with a chrome finish, ensuring longevity and a sleek appearance. This valve effectively prevents debris from entering your plumbing system while allowing water to drain efficiently.

Image: The Cornat TEC317412 Basin Strainer Valve seamlessly integrated into a white washbasin, showing its functional and aesthetic design.
2. Safety Information
- Always turn off the water supply before beginning installation or maintenance.
- Wear appropriate personal protective equipment, such as gloves and eye protection.
- If you are unsure about any step, consult a qualified plumber.
- Keep small parts away from children.
3. Package Contents
Verify that all components are present before starting the installation:
- 1x Cornat TEC317412 Basin Strainer Valve (Upper and Lower parts)
- Sealing washers/gaskets
- Lock nut
Note: Additional plumbing components like P-traps or waste pipes are sold separately.
4. Setup and Installation
Follow these steps for proper installation of your Cornat TEC317412 Basin Strainer Valve:
- Prepare the Basin: Ensure the drain opening in your washbasin is clean and free of old sealant or debris.
- Apply Sealant (Optional but Recommended): Apply a thin bead of plumber's putty or silicone sealant around the underside of the flange on the upper part of the strainer valve. This helps create a watertight seal.
- Insert Upper Part: Insert the upper part of the strainer valve through the drain opening from the top of the basin. Press firmly to seat the flange and sealant.
- Attach Lower Part: From underneath the basin, slide a rubber washer, then a friction washer (if included), and finally the lock nut onto the threaded tailpiece of the strainer valve.
- Tighten: Hand-tighten the lock nut, then use a basin wrench or adjustable wrench to carefully tighten it further. Do not overtighten, as this can damage the basin or the valve. Ensure the strainer valve is centered and level.
- Connect to Waste Pipe: Connect the tailpiece of the strainer valve to your existing P-trap or waste pipe assembly. Ensure all connections are secure and properly sealed.
- Test for Leaks: Turn on the water supply and fill the basin. Observe the connections underneath for any signs of leaks. If leaks occur, tighten the connections slightly or re-apply sealant as needed.

Image: Technical diagram illustrating the dimensions of the Cornat TEC317412 Basin Strainer Valve, including its 63mm diameter, 75mm total height, and 1 1/4 inch connection size.
5. Operating Instructions
The Cornat TEC317412 Basin Strainer Valve is a passive component designed for efficient water drainage and debris collection. No specific operational steps are required beyond normal use of your washbasin. Water will flow through the strainer, and any larger particles will be caught by the integrated sieve.

Image: A detailed close-up of the chrome strainer valve, highlighting its slotted design which allows water to pass while retaining debris.
6. Maintenance
Regular maintenance ensures optimal performance and extends the lifespan of your strainer valve:
- Regular Cleaning: Periodically remove any accumulated hair, soap scum, or other debris from the strainer to prevent clogs and maintain proper drainage. This can usually be done by hand or with a small brush.
- Chrome Finish Care: Clean the chrome surface with a soft cloth and mild, non-abrasive cleaner. Avoid harsh chemicals or abrasive pads, as these can damage the finish.
- Check for Leaks: Occasionally inspect the connections underneath the basin for any signs of water leakage. Tighten connections if necessary.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Slow Drainage | Debris (hair, soap scum) accumulated in the strainer or P-trap. | Remove the strainer and clean out any debris. If the problem persists, the P-trap may need cleaning. |
| Water Leakage | Loose connections or improperly seated seals. | Ensure all nuts are tightened securely (do not overtighten). Check that washers and sealant are correctly positioned. Re-apply plumber's putty if necessary. |
8. Specifications
- Model Number: TEC317412
- Brand: Cornat
- Manufacturer: Conmetall
- Material: Brass
- Finish: Chrome
- Connection Size: 1 1/4 inch (32 mm)
- Valve Type: Check and Strainer Valve
- Number of Ports: 2
- Compliance: WaterSense (as per product specifications)
- Country of Origin: Germany
9. Warranty and Support
For warranty information or technical support regarding your Cornat TEC317412 Basin Strainer Valve, please contact the manufacturer, Conmetall, or your retailer. Keep your proof of purchase for any warranty claims.
Manufacturer: Conmetall
For further assistance, please visit the official Cornat website or contact their customer service department.