Brandoni Backflow Preventers are engineered to safeguard drinking water and clean fluid systems from contamination caused by reverse flow. Manufactured in Italy to meet European and international safety standards, these devices are a critical component in maintaining water hygiene and protecting public health in residential, commercial, and industrial settings.

Key features and benefits of Brandoni Backflow Preventers.

Key Features

Brandoni Backflow Preventers feature a double-check valve system with an integrated relief zone for enhanced safety. This design effectively blocks reverse flow, even in high-risk conditions, ensuring water remains uncontaminated.

Key Features

Made from high-quality brass, bronze, or stainless steel, these devices are built to withstand demanding environments and aggressive water conditions. Their robust construction ensures long-lasting performance with minimal maintenance.

Key Features

Several Brandoni models carry WRAS approval, making them suitable for use in UK potable water applications. This guarantees compliance with hygiene and safety regulations for clean water systems.

The Brandoni ECO3F Flanged Backflow Preventer is designed to protect potable water systems from the risk of contamination due to reverse flow. Engineered for high-reliability applications, it prevents the unintended return of polluted or non-potable fluids into clean water supplies — ensuring system safety and compliance with stringent water regulations. Manufactured with a flanged connection design for robust and secure installation, the ECO3F is suitable for a wide range of industrial, commercial, and civil network applications. Its durable construction and precision sealing elements make it ideal for long-term performance in demanding environments.

Size Range:	DN65 - DN150
Temperature Range:	0 + 65°C
Pressure Range:	PN10
Body Materials:	Ductile Iron EN GJL 250

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Brandoni Backflow Preventers are designed to stop contaminated or non-potable water from flowing backward into clean water supplies. Engineered for safety and hygiene, they’re ideal for commercial, industrial, and irrigation systems where water integrity and WRAS compliance are critical.

This Brandoni backflow preventer with threaded ends and a controllable reduced pressure zone is designed to safeguard clean water systems from contamination due to backpressure or backsiphonage. Ideal for commercial, industrial, and HVAC installations, the reduced pressure zone provides an added layer of security, allowing any potential pollutants to be safely discharged through the integrated relief valve.

Size Range:	DN15 - DN50
Temperature Range:	0 + 65°C
Pressure Range:	PN10
Body Materials:	Brass / Bronze

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Brandoni Backflow Preventers are used to stop contaminated water or fluids from flowing back into clean water supplies. They are essential for protecting potable water systems in commercial, industrial, and HVAC applications.

It uses a system of dual check valves and a reduced pressure zone to block reverse flow. If pressure drops or reverses, the relief valve opens to discharge potentially contaminated water safely.

Yes, many Brandoni models are WRAS approved, making them suitable for use in UK potable water systems. Always check the specific model for certification.

An RPZ is a safety zone between two check valves where any backflow is released through a relief valve. It adds an extra level of protection by ensuring no contaminated water re-enters the clean water line.

Most models can be installed horizontally. For vertical installation, always refer to the manufacturer’s installation guide to ensure proper performance.

They are typically made from high-quality brass, bronze, or stainless steel, with internal components selected for corrosion resistance and long-term durability.

Brandoni offers a wide range of sizes, generally from DN15 (½") up to DN100 (4"), with both threaded and flanged connection options to suit different systems.

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Yes, smaller threaded models are suitable for residential use, especially where there is a risk of backflow from hose connections, heating systems, or irrigation systems.

A check valve allows flow in one direction but doesn’t protect against all types of backflow. A backflow preventer, especially with an RPZ, offers higher protection by actively releasing contaminated water if reverse flow occurs.

Selection depends on system size, pressure, flow rate, and local regulations. It’s best to consult technical specifications or speak with a knowledgeable supplier to ensure proper selection.

Please feel free to request information and advice using the form below or call us on 0151 547 1221

Brandoni Backflow Preventers