Solenoid valves are key components of industrial systems. They can be found in areas ranging from water supplies and the food industry to laboratory analysis and hydrogen production. Bürkert offers an extensive selection of solenoid valves for all kinds of media and applications – from proven standard products all the way through to customised solutions. Take a look and find the right valve design for your system today.
Energy-saving technology innovation:
Solenoid valves with Kick and Drop electronics
Is controlling gas and liquid flows an essential part of your system, but consuming too much energy?
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Bürkert solenoid valves with Kick and Drop electronics achieve energy savings of up to 80% and help you achieve your environmental objectives.
What to know what other benefits these little powerhouses offer?
The Bürkert portfolio includes 2/2-way and 3/2-way solenoid valves in various designs, tailored to suit a range of different media and usage conditions. We can also produce customised solutions on request – get in touch to find out more.
Solenoid valves for water, gases, steam and more
Bürkert solenoid valves are designed for a variety of media and include:
Water valves for drinking water, process water and similar liquids
Solenoid valves for oil and substances containing oil, such as those used in technical applications
Valves for neutral gases such as compressed air, or applications in energy and hydrogen technology
Valves for aggressive chemical media, including acids and alkalis
We also provide a variety of housing and seal materials to suit your specific application – so everything keeps running safely for a long time to come. Our solenoid valves are also available with different voltages – choose from 24 V, 120 V or 230 V.
Direct-acting or servo-assisted solenoid valves
Our solenoid valves are available in two different designs. The right choice for your needs depends on the nominal diameter, the flow and the pressure conditions in the system:
Direct-acting solenoid valves are opened and closed directly by the magnetic field of the coil. This makes them a simple, economical solution. They are particularly suitable for smaller nominal diameters and applications that do not involve differential pressure.
Servo-assisted solenoid valves (also known as pilot-operated solenoid valves) also use the pressure of the medium to open the main valve. This makes it possible to accommodate larger nominal diameters and higher flow rates.
Solenoid valves for various conditions at the installation site
The ambient and process conditions at the site also determine which valve is the right choice. To accommodate special conditions, our range includes numerous solenoid valves that are designed to suit them:
High-pressure valves for applications with increased system pressure; for example, in energy or process engineering
Ex solenoid valves for safe use in areas at risk of explosion, with approval according to worldwide standards such as ATEX, IECEx, UL HazLoc, FM HazLoc or China CCC.
Media-separated solenoid valves
Media-separated solenoid valves feature a diaphragm that separates the medium from the solenoid actuator. This reliably protects the actuator from contamination and damage, increasing its service life. As a result, the design is particularly suitable for applications involving contaminated, particle-containing or aggressive media.
What makes Bürkert solenoid valves so special?
Where are our solenoid valves used?
Bürkert solenoid valves can be used in almost any industry that requires liquids or gases to be controlled safely and reliably. Typical areas include:
Food and beverage industry
Water technology, from drinking water to wastewater treatment
Laboratory and analysis applications
Energy and hydrogen applications
Mechanical and plant engineering
Many other industrial applications
How you benefit with Bürkert
Diverse product selection
We offer a wide range of products for measurement, control and regulation technology used with liquids and gases – covering both single components and complete solutions, locally and globally.
Comprehensive services
Our experts are here to help throughout the entire life cycle of your systems if you need them – from selecting the right product through to consultation, design, finalisation and commissioning.
Quick reordering
Already know which solenoid valve you want to order? Our wish lists, shopping baskets for saving your items and quick orders based on article numbers are all there to make the process simpler.
How to find the right solenoid valve in our eShop
Our eShop provides a clear overview of all the valves we offer. You can search directly using a type number or article number, or you can use the practical filter function to find solenoid valves based on specific features such as the material, seal material, pressure, temperature and connection type. Technical data sheets, CAD drawings and information on approvals and certifications are also available to access directly with each product. Now you can find the solenoid valve that’s perfect for your needs.
Still got questions?
If you’re not yet sure which solenoid valve is right for you, we’re happy to help you find the perfect solution.
A solenoid valve is an electrically operated valve that controls the flow of liquids or gases. When an electrical voltage is applied, a magnetic field is generated. This moves the valve core or plunger, opening or closing the flow of media. Solenoid valves are particularly suitable for automated processes involving rapid switching operations.
Here are some of the things you should think about: Which medium is involved?
Gas, air, water, oil, steam, etc.?
Clean, contaminated, viscous?
Corrosive, aggressive?
What temperature & pressure levels are you working with?
Medium and ambient temperature
Operating pressure
Minimum pressure (important for servo-assisted valves!)
Maximum pressure
What flow parameter are you working with?
Required flow rate
Pipeline size
Kv or Cv value, depending on the medium
What voltage are you working with?
Typical voltages are 2 V, 230 V and 110 V
Direct current or alternating current
With an alternating current: 50 Hz or 60 Hz frequency
Which materials are you looking for?
Valve body: brass, stainless steel, plastic
Seals: NBR, EPDM, FKM, etc.
Direct-acting solenoid valves are opened and closed directly using the magnetic force of the coil – without any assistance from pressure. They are ideal for small nominal diameters and low medium pressure levels, but they require more energy. Servo-assisted valves also use pressure from the medium. This makes it possible to accommodate large nominal diameters and high flow rates, but there has to be a pressure difference between the inlet and outlet in order for the valve to work.
A 2/2-way solenoid valve has two connections and two switch positions, and is used to open or close a media flow. A 3/2-way solenoid valve has three connections and two switch positions. It allows for extra functions such as venting or redirecting media.
The Kv value (also known as the flow coefficient) is a parameter representing the flow capacity of a valve and helps in determining the right valve size for the required flow in your application. It indicates how many cubic metres of water (at 5–40 °C) flow through the valve per hour at a pressure difference of 1 bar.
High Kv value = high flow capacity
Low Kv value = low flow capacity
The Kvs value refers to the Kv value when the valve is fully opened (100% nominal stroke) and is the value most commonly specified in data sheets. Also useful to know: American data sheets refer to the Cv value instead of the Kv value. The conversion formula is Kv = 0.865 × Cv.
AC coils in solenoid valves use the power frequency for current limitation. If the frequency is not suitable for the coil design, the valve cannot operate reliably.
Frequency too low → coil overheats, valve may fail
Frequency too high → magnetic force is insufficient, valve does not switch
Therefore, when selecting a valve, make sure that the type of coil is compatible with the power frequency of your system (50 or 60 Hz).
It is not possible to state generally what the service life of a solenoid valve should be, as it heavily depends on the application. Key factors include:
the valve type and design
the medium and its properties (such as its temperature and aggressiveness)
the pressure and differential pressure
the environmental conditions
the number of switching cycles
All Bürkert solenoid valves undergo comprehensive endurance tests to ensure they are highly reliable. Regular maintenance and inspection also help extend the service life.
Whether a solenoid valve can be repaired depends on the design and usage conditions. Wear parts such as seals or diaphragms can be replaced for the most part, depending on the valve type. Suitable spare part sets are available for many Bürkert solenoid valves and provide an easy way of extending their service life.
