Introduction
The Viega ProPress Zero Lead Copper XL-C Tee (Model 20803) is a high-quality pipe fitting designed for efficient and reliable plumbing connections. This manual provides essential information for the proper installation, operation, and maintenance of your ProPress fitting.
Viega ProPress technology significantly reduces installation time, offering a consistent, strong, and watertight seal in seconds. It is suitable for various commercial, industrial, and residential applications, including new installations and retrofits. This system eliminates the need for traditional soldering equipment such as tanks, hoses, thread cutters, solder, and flux.
A key feature is Viega's patented Smart Connect, which helps identify unpressed connections during testing, ensuring no connection is overlooked.
Product Overview

This image displays the Viega 20803 ProPress Zero Lead Copper XL-C Tee. It is a copper fitting with three press connections, forming a 'T' shape. The ends feature internal sealing elements, visible as dark rings, designed for secure, solder-free connections. The fitting is marked with 'Viega', 'NSF 61', and 'UPC' certifications, indicating its compliance with industry standards for potable water and plumbing applications. The overall construction is robust, made from heavy-gauge copper.
Setup and Installation
Proper installation is crucial for the performance and longevity of your Viega ProPress fitting. Always refer to local plumbing codes and standards.
- Preparation: Ensure the pipe ends are clean, free of burrs, and cut squarely. Mark the insertion depth on the pipe.
- Insertion: Insert the pipe fully into the ProPress fitting until it reaches the stop. Verify the insertion depth mark is aligned.
- Pressing: Use an approved Viega pressing tool and jaws appropriate for the fitting size. Position the jaws squarely over the fitting.
- Activation: Activate the pressing tool. The pressing cycle will complete automatically.
- Verification: After pressing, visually inspect the connection to ensure the fitting is fully pressed. The Smart Connect feature will help identify unpressed connections during system testing.
- Wet Connections: Viega ProPress allows for joining wet connections, which can be beneficial for maintenance and repair scenarios.
Operating Principles
The Viega ProPress system operates on a cold press connection principle, eliminating the need for heat sources. Once pressed, the fitting creates a permanent, mechanical seal. The system is designed for rapid installation, with connections typically made in four to seven seconds.
The integrated sealing element within the fitting ensures a reliable, watertight seal when properly pressed. The Zero Lead Copper construction makes it suitable for potable water applications.
Maintenance
Viega ProPress fittings are designed for long-term, maintenance-free operation once properly installed. Regular maintenance typically focuses on the overall plumbing system rather than the individual fitting itself.
- System Inspection: Periodically inspect the entire plumbing system for any signs of leaks or damage.
- Water Quality: Ensure water quality is within acceptable parameters for copper plumbing systems to prevent corrosion.
- Tool Maintenance: Ensure your Viega pressing tools are regularly serviced and calibrated according to manufacturer guidelines to guarantee proper pressing force.
Troubleshooting
Most issues related to ProPress connections stem from improper installation. Follow the installation steps carefully.
- Leakage After Pressing:
Possible Cause: Unpressed connection or improper pipe insertion.
Solution: Re-check all connections. The Smart Connect feature helps identify unpressed fittings during initial system testing. Ensure the pipe was fully inserted and the pressing tool was properly applied.
- Difficulty Inserting Pipe:
Possible Cause: Burrs on pipe end or deformed pipe.
Solution: Deburr and ream pipe ends thoroughly. Ensure pipe is round and not ovalized.
- Pressing Tool Malfunction:
Possible Cause: Tool not charged, jaws worn, or tool requires service.
Solution: Check battery charge. Inspect jaws for wear and replace if necessary. Refer to your pressing tool's manual for specific troubleshooting or contact Viega support.
Specifications
| Attribute | Detail |
|---|---|
| Model Number | 20803 |
| Brand | Viega |
| Material | Copper |
| Connector Type | Tee (P x P x P) |
| Size | 2-1/2-Inch by 2-1/2-Inch by 1-1/2-Inch |
| Exterior Finish | Copper |
| Item Dimensions (L x W x H) | 4.4 x 2.5 x 6 inches |
| Item Weight | 1.5 pounds (680 Grams) |
| UPC | 691514208039 |
| Certifications | NSF 61, UPC (as indicated on product image) |
Warranty Information
The Viega 20803 ProPress Zero Lead Copper XL-C Tee comes with a Limited Warranty. For specific terms and conditions, please refer to the official Viega warranty documentation provided with your purchase or visit the official Viega website. Keep your proof of purchase for warranty claims.
Support and Contact
For technical assistance, product inquiries, or warranty support, please contact Viega customer service.
- Viega Official Website: www.viega.us
- Customer Service: Refer to the Viega website for current contact numbers and email addresses.





