Backflow prevention valve class EA. With supervision option. Connections with internal thread 1.5" 304580

Backflow preventer – protection of installations and potable water

This EA class backflow preventer, manufactured by CALEFFI, is a key element protecting the water installation from contamination. Its task is to prevent water from flowing back from the internal installation into the water supply network, which is particularly important in residential, commercial and industrial buildings. The brass construction ensures durability and corrosion resistance, and the monitoring option facilitates valve condition control.

Construction and application

The valve is designed for installation between the water supply network and the internal installation. Its main purpose is to protect against potential contamination of drinking water, which may occur due to a drop in pressure in the municipal network or a failure in the internal installation. Thanks to the use of a lip seal, the valve works effectively at both low and high pressure. Connections with a 1 1/2 inch (40 mm) internal thread facilitate installation and integration with the existing installation. The pressure class PN 10 indicates its resistance to working pressure up to 10 bar.

Key features and benefits

• Protection against contamination: Prevents contaminated water from flowing back into the water supply network, protecting the health of users and the integrity of the network.
• Durable construction: Made of brass, which guarantees corrosion resistance and long service life.
• Versatile application: Suitable for use in residential, commercial and industrial buildings.
• Easy installation: Connections with a 1 1/2 inch internal thread facilitate integration with the existing installation.
• Monitoring option: Allows regular control of the valve condition and ensuring its proper operation.
• Compliance with standards: Protection class EA ensures compliance with applicable regulations regarding the protection of drinking water.

This valve is particularly recommended in situations where there is a risk of pressure changes in the water supply network or potential contamination of the internal installation. Its installation is an investment in safety and hygiene of water use.