Non-return valve BA295S-1A Flow isolator, threaded, 1 inch, with union nuts

Backflow preventer – reliable protection for water installations

The BA295S-1A backflow preventer is a key element protecting drinking water systems from contamination caused by backflow. The construction of this flow isolator, with a 1-inch thread and included nipples, ensures easy installation and reliable operation in various applications. This is particularly important in installations where the risk of water backflow is increased, e.g., in residential, commercial, or industrial buildings.

Construction and application

The BA295S-1A valve is designed to provide the highest level of protection. Made of dezincification-resistant brass (DZR), it guarantees durability and corrosion resistance. Its construction is based on triple protection: two check valves and a drain valve, which divide the internal space into three pressure zones. This solution minimizes the risk of contamination even in the event of a failure of one of the elements. A built-in inlet filter further increases the level of protection, although replacing the entire valve cartridge is required when cleaning it.

This valve is used wherever protection against backflow is required in accordance with EN 1717 standard (category 4). The pressure drop at a nominal flow rate of 5.8 m³/h is only 1 bar, which means minimal impact on the pressure in the installation. The possibility of horizontal mounting with a lower drain valve facilitates maintenance and allows for effective removal of contaminants.

Key advantages and benefits

• Triple protection: Two check valves and a drain valve create a reliable barrier against contamination.
• High flow rate: Nominal flow rate of 5.8 m³/h with low pressure drop (1 bar) ensures comfortable use.
• Durability and resistance: Made of dezincification-resistant brass (DZR) guarantees long life and corrosion resistance.
• Easy installation: 1-inch external thread and included nipples facilitate installation.
• Compliance with standards: Meets the requirements of EN 1717 standard (category 4) and is intended for drinking water.
• Long warranty: The manufacturer offers as long as 5 years warranty from the date of production, which proves the high quality of the product.
• Low pressure drop: Ensures efficient operation of the installation without significant reduction of water pressure.
• Seal material: Ethylene-propylene-diene monomer (EPDM) rubber ensures tightness and durability of connections.

The BA295S-1A backflow preventer is an investment in the safety and long-term reliability of your water installation – for both professionals and end users.