Valves

Flühs Drehtechnik has been an established manufacturer of high-quality valves since the 1970s. Our valves are used in numerous sanitary fittings worldwide.

Valves regulate and control liquids or gases in a wide variety of pipes, such as pipelines in buildings or lines within systems in machinery. In sanitary applications, they regulate and control the flow of water in fittings, such as washbasin fittings.

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There are various types of valves, which differ depending on the area of application and design. In principle, the mechanical function is always similar.

The following text explains what a valve is, how it works and what types of valves exist.

What is a valve?

A valve is a device to control, regulate, or shut off the flow of liquids or gases in pipelines or in hydraulic and pneumatic systems, for example heating valves, check valves, or compressed‑air valves.

Valves ensure that a certain amount of liquid or gas flows through a pipe or that the pipe is shut off so that the flow is completely interrupted. The path of the respective medium in the pipe or the direction of flow can also be controlled via a valve.

Radiator valves, for example, control the amount of heating water that flows through the radiator. If you open the valve, a certain amount of heating water flows through the radiator. The exact amount depends on the thermostat setting. If the valve is closed, no heating water flows through the radiator. Here, the valve performs central functions for regulation and shut-off.

Diverters in shower and bath fittings direct water to the hand shower outlet or tub spout. These valves control the water's path within a fitting.

The mechanical function is similar for all types of valves. A closing part, such as a ball or a needle, is moved parallel to the direction of flow in the pipe. When the pipe is completely shut off, the sealing surface of the closing part moves into an opening (also known as a valve seat or sealing seat). This stops the flow of liquids or gases in the pipe. In the case of partial shut-off, the diameter of the opening is reduced by the movement of the closing part, so that the flow rate is reduced. Ceramic valves consist of 2 or more ceramic discs that open or close the water flow by rotation.

What types of valves exist?

There are different types of valves, including directional control valves, shut-off valves, pressure valves and flow control valves. Valves can generally be categorized by their shape, the type of actuation, the type of control, the valve function and the design of the shut-off body. The most common valve types are heating valves, sanitary valves, bicycle valves, car valves, directional valves, stop valves, shut-off valves, pressure valves or flow control valves.

Heating Valves

Heating valves are used in heating systems to control hot‑water flow and regulate temperature. Flühs supplies high‑performance valves, including valves with an integrated shut‑off function, suitable for installation in heating systems.

Plumbing Valves

Plumbing valves are used to regulate and control volumetric flow in sanitary installations, for example ball valves, shut‑off valves, diaphragm valves, bellows‑sealed valves, and plug valves. Flühs valve technology for controlling water flow in sanitary systems is a worldwide market leader.

More about Plumbing Valves

Bicycle Valves

Bicycle valves are check valves through which the air enters the bicycle tube. In Europe, 3 types of bicycle valves are mainly used: the Presta valve (or "French valve"), the Schrader valve (also known as the "car valve") and the Dunlop valve (also known as the "Blitz valve").

Car Valves

Car valves, also known as Schrader valves, are used on car tires and many racing bike tires to allow air into the tire and maintain correct pressure.

Directional Control Valves (DCVs)

Directional control valves (DCVs) direct and regulate the flow of liquids or gases to different outlets. Flühs offers, among others, the Flühs Motion valve, which routes pre‑mixed water to 2 or 3 water paths, and the Motion Deck, designed specifically for 5‑hole faucet sets.

Shut‑Off Valves

Shut‑off valves (also called isolation valves) regulate flow in gas or water lines in residential and industrial buildings. The broad Flühs portfolio includes numerous valves with an integrated shut‑off function and a configurable Shut‑Off wall stop valve for isolating main and branch service lines.

Check Valves

Check valves (also non‑return valves) allow flow in only one direction and are often used in heating or cooling systems. One example is the Flühs KFR valve, in which a spring‑mounted sealing cone ensures the fitting is traversed in only the intended direction.

Pressure Valves

Pressure valves limit and regulate pressure in a line or pneumatic system, such as presses, tire‑pressure gauges, or compressors. Depending on design, this may include pressure relief functionality.

Flow Control Valves

Flow control valves regulate the volumetric flow rate of liquids in hydraulic systems, such as lift tables, brake cylinders, and tipper vehicles.

Valves

by Flühs

Valves by Flühs Drehtechnik

Valves by Flühs Drehtechnik are the result of many years of experience, constant quality controls and innovation, which is reflected in around 200 patents. Flühs has been an established manufacturer of high-quality valve technology since the 1970s. We have developed into a leading system supplier and manufacturer of valves. Flühs Drehtechnik exports its products to more than 50 countries.

All our valves are suitable for drinking water and are world market leaders in the field of sanitary fittings. Flühs valves are used by leading international valve manufacturers.

Flühs Drehtechnik designs custom product solutions using its extensive product range. We offer a wide variety of valves for different usage requirements and installation situations. For example, we have valves for particularly water-saving fittings and for concealed or surface-mounted applications.

Flühs Drehtechnik attaches great importance to innovation. There are numerous examples of this. The Lifetime Option headwork is the only valve headwork in the world that can be operated both left and right turn closing. We have developed a special lip seal that prevents the installation pressure of the valve seat from acting on the ceramic disk. As a result, Flühs ceramic valves run exceptionally smooth.

Valves from Flühs Drehtechnik are characterized by the highest quality and durability. Continuous quality controls ensure that every single valve functions precisely and has the necessary tightness. Flühs quality convinces manufacturers all over the world. The Flühs Lifetime headwork with ceramic disk technology, for example, has been manufactured since the 1980s and is now used in over 50 countries. The Flühs Lifetime headwork is continuously tested with more than 500,000 load cycles, which contributes to the particular longevity of this product.

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