SIKA Dr. Siebert & Kühn GmbH & Co. KG

Say goodbye to wear and tear on mechanical parts thanks to flow measurement technology with no moving parts. The VMZ magnetic inductive flow sensor from SIKA Dr. Siebert & Kühn stands out with its innovative, cost-effective design and its unique technical features. Specifically designed for OEM applications, it uses plastic components to deliver excellent value for money.

Impressive features of the revolutionary flow sensor include an unobstructed pipe cross section with no projecting parts to avoid additional pressure drop. Only a short upstream section is required, making compact installation possible. The VMZ is unaffected by changes in viscosity, density, pressure or temperature. The use of plastic components means that the new flow sensor is both light and compact, making it ideal for use in mobile applications.

The flow sensor is used with conductive liquids, particularly in places where flow sensors with moving parts cannot be used due to clogging of media. It constantly measures volumetric flow rates and ensures precise dispensing of liquids, all over an amazingly wide measuring range. Seven different flow ranges are available.

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SIKA presents:

Flow Switches for heat pumps

With the flow switch for heat pumps for installation in copper pipes, SIKA is one of the leading companies globally in its market segment. The flow switch can be installed for example in the heating circuit return flow and protects the heat exchanger from freezing up via a customised switch point set at the factory. The simple and inexpensive installation directly into an existing copper pipe, a proven and compact paddle design especially made for mass production (OEM) capability, and the high and long-term stability of the switching point thanks to magnetic reset of the paddle all testify to the product from the company grounded in tradition. The product's high quality was demonstrated by, among other things, a 16-year endurance test.

Other advantages:

- The desired switching point can be set at the factory

- Glass fibre-reinforced plastic ensures high stability

- Switching function independent of temperature and pressure

- Switching point stable over the long term thanks to magnetic reset of the paddle

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No moving parts – no mechanical wear

We have expanded our popular Vortex flow sensor product range. The flow sensor installed directly in the pipe as an in-line device is based on the Kármán vortex street principle. Its integrated bluff body creates swirling vortices in the medium, which interact with the piezoelectric force sensor, which is fully encapsulated in plastic. This construction offers unique advantages in terms of contamination and pressure peaks.

By means of the integrated electronics, the pulses of the sensor are converted into a flow-proportional output signal. For the flow, several analog voltage signals (for example 0 ... 10 V or 4 ... 20 mA) or a frequency signal are now available. For the integrated temperature measurement, we also offer a resistance or analogue signal.

Our vortex flow sensors are still made of high quality, glass fiber reinforced plastic. They withstand a constant medium temperature of up to 90 ° C and are characterized in the field by their stability, longevity and high immunity to interference. In nominal sizes of DN 15, DN 20 and DN 25, they can also be easily integrated into existing processes thanks to their diverse process connections and adapters with metric and NPT male threads as well as Quick Fasten System. New is e.g. a sensor with DN 20 and a metric G1 external thread.

Flow monitors for insertion installation

SIKA flow switches monitor the flow of low-viscosity media in pipes. They offer a reliable solution for ensuring the minimum flow rate and thereby protecting high-quality systems and installations from damages. These flow switches work on the basis of the well- established mechanical operating principles. Thanks to the different paddle lengths, the switch points of the paddle flow switches can be configured for a wide switching range.

The flowing medium hits the plate secured to the end of a paddle. The resulting dynamic pressure causes the paddle to travel. This, in turn, causes the actuation of a micro switch.

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Precise, compact and versatile

SIKA Dr. Siebert & Kühn GmbH & Co. KG has not only developed innovative measuring and calibration technology, but has also dedicated itself to the further development of proven product series. As part of this development, the product group of the magnetic inductive flow sensors of the VMZ series has been fully revised.

The new series VMZ.2 impresses with application-specific nominal diameters from DN2 to DN25 as well as improved measuring ranges from 0.01 l / min to 250 l / min. In addition, due to the extensive development, a large number of analogue output signals and frequency signals are available.

Magnetic inductive flow sensors of the VMZ.2 series work from a minimum conductivity of the medium to be measured of only 20 μS / cm. With their low reaction times <100 ms, they dose additives reliably and accurately. In addition, pressure losses are prevented by the free pipe cross-section of the measuring tube. Their high resistance to aggressive media qualifies them even for applications in the chemical industry.

Their compact design and their low demands on the inlet section enable extremely space-saving installation of the new VMZ.2. The world-renowned design with high-quality plastic and stainless steel components and the resulting very good price / performance ratio is ideal for use with bulk customers and OEMs in the price-sensitive environment.