When building a house, you need to remember many things, such as proper electrical and water installations, as well as sewage and drainage. What is the purpose of a storm valve and what is it exactly?

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What is a storm valve?
The storm valve is one of the elements of the sewage system, in which it plays a very important role. During storms and heavy rainfall, houses connected to the sewage system are exposed to flooding with sewage. This is a phenomenon of the so-called reverse flow of sewage and rainwater, which can cause flooding of the lowest floors of the building.
The element of the sewage system, which is the backwater valve, has another very important function. It will help protect the house from pests such as mice and rats, which often seek shelter in the sewage system. It is also a way to gain protection against unpleasant odors that can get into the house, especially when they are not used for a long time.
How to install a storm valve?
The backwater valve is also called a sewer check valve. It is worth emphasizing that in order to properly fulfill its role, it must be properly installed. The basic rule is that it must be installed on a horizontal section of the sewer system, on the drain pipe.
It is important to install it in a place where sewage from all the building's risers collects. Only then will you gain full protection.
TOP5 storm valves in the Onninen offer
KARMAT PP DN 160 double-flap backwater valve type 2
The KARMAT PP DN 160 double-flap storm valves type 2 for external sewage enjoy great trust. Prepared by KARMAT , they are characterized by high resistance to mechanical damage. They are durable and solid, thanks to the materials used in the production process - high quality plastics and metal elements made of stainless steel, thanks to which they are resistant to corrosion and adverse weather conditions. The product is characterized by high durability, it can effectively protect up to a maximum internal pressure of 1 bar.
Karmat PP DN 110 single-flap backwater valve type 1
Another noteworthy proposal is the Karmat PP DN 110 single-flap type 1 storm valve for external sewage . It provides effective protection against both the backflow of sewage from the sewage system to which the building is connected, as well as the ingress of rodents. This is an effective and comprehensive protection of the lowest storeys of the building against flooding. KARMAT products are made of high-quality materials, thanks to which they are highly resistant to both mechanical damage and the adverse effects of external factors.
Karmat PP DN 110 backwater valve, end type 0
Another type is the Karmat PP DN 110 end type 0 storm valve for external sewage . This is a solution that very effectively protects against flooding of low-lying building floors. It is an element of the sewage system, so it protects against sewage and rainwater backflow. Made of high-quality material, it will also provide safety against rodents, such as mice and rats, residing in sewage systems. It is characterized by high resistance to atmospheric factors, including UV radiation.
Karmat PP DN 160 mm backwater valve for concrete wells type 0
When looking for professional solutions, it is also worth paying attention to the Karmat PP DN 160 mm backwater valve for concrete wells type 0 , with a removable flap, designed for installation in external sewage systems. Backwater valves are installed in both concrete manholes and non-manholes, in the outlet opening in the downpipe. The advantage of this solution is that the flap is pulled out using a special rod, so you do not have to go down to the well every time. When sewage or rainwater backflow occurs, the valve is pressed against the valve head.
Karmat 315 x 160 pass-through bottoms with a storm valve for a corrugated riser pipe DN 315 mm
Protecting the building against sewage backflow is also done by using solutions such as Karmat 315 x 160 through-flow chambers with a storm valve for a corrugated DN 315 mm rising pipe . This particular solution is installed in the sewer pipe located between the building and the main sewage system. Thanks to this solution, a chamber equipped with a chamber with a storm valve can function as an inspection chamber.