Non-return valve / storm gate valve STAUFIX SIPHON DN50, TYPE-5, for under-sink siphon, two mechanical check flaps, without rodent protection, with emergency closure, for wastewater without faeces, plastic, white color 73051

Backflow preventer for siphon traps – protects against sewage backflow

This Staufix Siphon DN50 backflow preventer is a reliable safeguard for plumbing installations against the effects of sewage backflow. Designed for use in bottle traps, it effectively protects against unpleasant odors and flooding, especially in the event of a sewer failure. The design with two mechanical check valves ensures high efficiency, and the additional emergency manual shut-off function provides full control over the flow.

The valve is made of durable plastic, which guarantees corrosion resistance and long service life. Its vertical design facilitates installation and integration with existing installations. Thanks to the nominal diameter of 50 mm (DN50), it is compatible with standard drainage systems.

Construction and application

The Staufix Siphon valve uses two mechanical check valves that automatically close in the event of backflow of sewage. One of the flaps also has an additional function – it allows manual closing of the valve in emergency situations or during maintenance work. This solution is particularly useful during installation upgrades, as the valve can be easily built into existing pipe runs.

Application:

• Protection of bottle traps against sewage backflow

• Plumbing installations in residential and public buildings

• Modernization of existing sewage systems

• Washing machine connections (according to EN 13564 standard)

Key features and benefits

• Two mechanical check valves: provide effective protection against backflow of sewage without solids.

• Emergency manual shut-off: enables full flow control and quick response in crisis situations.

• Plastic construction: guarantees corrosion resistance and long-term reliability.

• Easy installation and maintenance: the valve can be easily built into existing installations, and its cleaning does not require the use of specialized tools.

• Complies with EN 13564 standard: confirms the safety and quality of the product.

• Compact dimensions: length of 283 mm facilitates installation even in tight spaces.

• Push-fit ends: ensure a tight connection with DN50 diameter pipes.