Backflow preventer threaded external type BABM 1/2 inch 149B70000

Backflow preventer – protection of the installation and water purity

This threaded backflow preventer of type BABM, with a diameter of 1/2 inch, is a key element protecting plumbing systems from contamination. It prevents water from flowing back, protecting the system from potential hazards related to secondary pollution. This is particularly important in residential, commercial and industrial buildings where maintaining water purity is a priority.

Design and operating principle

The BABM isolator is made of high-quality materials, guaranteeing its durability and reliability. It consists of two check valves and an intermediate chamber. In the event of backflow, an air gap is created in the chamber, effectively separating the supply zone from the drainage zone. The valve also has a drain valve assembly made of stainless steel, POM and brass, which facilitates control of its operation and ensures long-term trouble-free operation. The use of materials such as brass (body) and POM (check valves) ensures corrosion resistance and mechanical strength.

Application and compliance with standards

This isolator is used in water systems requiring protection against backflow, in accordance with applicable standards. It meets the requirements of standards: PN-EN12729 (product standard), PN-EN1717 (protection against secondary water contamination) and EN ISO 228-1 (threaded connections). It has SIET, SITAC, SVGW, SINTEF, UNI, ACS and PZH certificates – confirming its safety and compliance with the highest quality standards. This gives the installer confidence that the installed element meets all legal and technical requirements.

• Protection against contamination: Protects the water supply network from secondary contamination caused by backflow.
• Durable construction: Made of brass, stainless steel and POM ensures long-term reliability.
• Easy control: The ability to continuously check the correct operation of the drain valve facilitates servicing and maintenance.
• Compliance with standards: Meets European standards regarding drinking water protection.
• Mounting position: Designed for horizontal operation – important when planning the installation.
• Wide temperature range: Can operate at temperatures up to 65°C – versatility of use in various conditions.
• High pressure resistance: The maximum working pressure is 10 bar – safety of use in typical plumbing installations.

The connection length is 201 mm, which should be taken into account when designing the installation and selecting appropriate connecting elements. The BABM isolator is an investment in the safety and hygiene of the water used, providing peace of mind for both installers and end users.