Overflow siphons for stainless steel or composite sinks

This category features siphons for kitchen sinks equipped with an overflow system designed to control the water level and protect the bowl from overfilling. Such products are used in sinks with a dedicated overflow opening and ensure proper discharge of excess water into the sewer bypassing the valve (in case the drain valve is closed and the water level in the bowl approaches a critical point). Each siphon presented on this page is made with a European-standard drain throat: the throat diameter is approximately 110–115 mm for installation in a sink with a drain opening of about 90 mm. The valve allows precise adjustment of the drain assembly, ensuring tight connections and a stable water seal (the water flow can be completely blocked to fill the bowl and released when needed).

A kitchen siphon with overflow structurally consists of a main drain channel and an additional branch pipe connected to the sink’s overflow opening. This solution is especially relevant for intensive use, when the sink is used for soaking dishes or food.

Installation of the overflow system branch pipe requires a tight fit of this component to the bowl wall, achieved using rubber seals. Considering that the wall can be conditionally “flat” in models with square or rectangular bowls, and “curved” in sinks with round bowls, the sealing elements must have a corresponding contact surface. The siphons presented in the catalogue include both seal options in the set, allowing the user to choose the appropriate one for a specific case. For this reason, there is no need to look separately for an overflow siphon for a round sink—any of the presented siphons will fit. Here you can choose a siphon with overflow for a sink that, thanks to its universal design, is compatible with most modern kitchen solutions and sewer connection standards.

• siphon materials are resistant to hot water and household chemicals;
• a dedicated channel for water overflow protection;
• drain valve with debris strainer grille;
• compatibility with sinks of various bowl shapes;
• resistance to temperature and chemical loads.

Overflow siphons are an essential element of the drainage system for kitchen sinks with an overflow opening and ensure safe, controlled drain operation in both residential and commercial environments.