Brass Press Tee Comap BASE CMTZ2034 — 20×3/4×20 mm press-fit plumbing fitting

Comap BASE CMTZ2034 is a brass press tee designed for press-fit plumbing systems. Sized 20×3/4×20 mm, this fitting creates a T-connection between two 20 mm pipes and a 3/4" threaded branch. It is intended for potable water and heating applications and provides a solder-free alternative to traditional joining methods when used with compatible press tools and sealing elements.

Advantages

The brass construction ensures corrosion resistance and long-term dimensional stability in typical domestic and commercial environments. Press-fit installation reduces on-site assembly time and eliminates the need for open flame work, supporting safer and faster installation. The integrated threaded branch allows secure connection of valves, meters, or fixtures with 3/4" female threads, while the press ends provide leak-resistant joints when combined with the appropriate seals and pressing equipment.

Suitable for

• Domestic and multi-family potable water distribution
• Central heating and hydronic systems
• Connections to valves, faucets, and water meters with 3/4" threads
• New installations and retrofit projects where solder-free joints are required

Key specifications

• Material: brass suitable for potable water and heating systems
• Connection types: two press-fit ends for 20 mm pipes and one 3/4" female threaded branch
• Dimensions: 20×3/4×20 mm
• Installation method: press-fit using compatible press tools and seals
• Application temperature: suitable for typical domestic hot and cold water temperatures and heating circuits (follow system and sealant limits)

How to use

Prepare pipe ends by cutting square and deburring both the outside and inside faces. Select the correct sealing element compatible with the press system and insert it where required. Position the tee onto the prepared 20 mm pipes and align the 3/4" threaded branch with the mating component. Use a compatible press tool and jaws sized for 20 mm press connections to make the press joints according to the press tool manufacturer's instructions. After pressing, verify mechanical integrity and check for leaks by performing a pressure test in accordance with local plumbing regulations.

Usage recommendations

Use only seals and press jaws approved for the specific press system and observe the manufacturer's instructions for pressing parameters and pressure testing. Avoid exposing the fitting to aggressive chemicals or operating conditions outside the recommended temperature and pressure ranges for the seals and system components.