Various flow regulators from above
Flow regulators – for an optimized flow
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To use water efficiently, the flow rate must be precisely regulated. NEOPERL flow regulators adjust the water flow rate to meet your requirements. They optimize water consumption in household faucets or are installed as sub-components in drinking water supply lines for technical applications.

Functions of a flow regulator
Independent of pressure fluctuations, our flow regulators guarantee an almost constant flow rate.
Keeping the flow rate constant

Irrespective of pressure fluctuations, our flow regulators ensure a virtually constant flow rate. This allows water-saving requirements and official standards to be met.

Row of showers
Uniform water distribution

NEOPERL flow regulators ensure uniform water availability at rows of washbasins or at all outlet points in a multi-story building, mitigating the effects of pressure fluctuations.

Emergency eye shower
Correct control of the water stream

For water stream control, flow regulators control the force and range of the stream. The gentle flow of water aids careful cleaning of the eyes, e.g., in eye showers.

Automatic bottle filling
Precisely dosed quantities

In combination with solenoid valves, our regulators ensure that coffee and drinks machines, as well as industrial filling plants, dispense the correct volume of liquids.

Our flow regulator range

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Flow regulators for technical applications

The range includes a large number of flow regulators in various sizes and flow rate versions. They are installed as sub-components in drinking water supply lines for various applications.

Discover our range
Flow regulators for retrofit in domestic applications

The range includes flow regulators that can be easily installed in existing faucets and showers as a water-saving solution.

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NEOPERL® flow regulators ensure a near-constant flow by compensating for changes in line pressure.
The interaction between the seating area and the o-ring determines the flow rate in the flow regulator. Water with a stronger or weaker pressure changes the shape of the o-ring accordingly.
How do flow regulators work?

A typical flow regulator consists of three components:

a housinga seating areaa precision o-ring

The flow rate is determined by the interaction between the seating area and the o-ring. When water flows through the regulator at a higher or lower pressure, the shape of the o-ring changes.

Static state (no flow; no pressure or low pressure): The o-ring is relaxed (position 1).

Dynamic state (flow): When water flows through the flow regulator, the shape of the o-ring changes and it is pushed into the seating area. This reduces the amount of space for the water to pass through (position 2).

The higher the flow pressure, the more the shape of the o-ring changes (position 3).

As the pressure decreases, the o-ring gradually returns to its original shape, making larger spaces for the water to pass through again (back to positions 2 and 1).

In this interaction, the o-ring and seating area adapt to the changing pressure conditions. A constant flow rate within the specified tolerance is ensured.

› The full operating principle is explained in this video.

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Flow rate ranges

In this PDF file, you can see which of our product lines cover which range of flow rates.

Flow regulators: flow rate range by product line  | pdf | 482.97KB
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We can produce solutions tailored to the housing geometry or flow rate. Ask us with pleasure!
Do you need help selecting a flow regulator?

We would be pleased to help you select a product and, if required, develop solutions for you. You can reach us via our contact form.

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Outstanding life cycle assessment

A NEOPERL flow regulator in the shower head saves water and energy when showering. But:

How much water and energy are used in the production and disposal of the product?How much CO2 is released during transport?What is the real relationship between costs and savings?

To answer these questions, the Technical University of Berlin conducted a life cycle assessment study on behalf of Neoperl. The results were astonishing:

If a small flow regulator is in use for ten years, it recovers at least 26,000 times the resource consumption from the manufacturing process. The use of the flow regulator therefore pays off after just a few days, both for you, mankind and the environment.

› Click here to go to the study on the life cycle assessment of NEOPERL flow regulators.

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