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Ex protection

Pressure switch in hydrogen-powered train ensures safety

08/10/2022 | Jing Lyu | Applications
Ein Druckschalter ist Teil der Antriebsüberwachung in einem Wasserstoffzug.

In a newly developed hydrogen train for local transport, a pressure switch from WIKA plays a crucial role. Within the scope of pressure monitoring, it performs the central safety function in the H2 supply system during the journey. The benefits of hydrogen in rail …

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What is the leading ignition protection type for UHP pressure transducers?

04/20/2022 | Fabian Mayer | Know-how
Leading ignition protection type UHP pressure transducer

The leading ignition protection type is critical for the electrical connection of a pressure sensor with explosion protection. It does not necessarily have to be the one with the stricter requirements. This applies, for example, for the UHP pressure transducers of the …

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Flame arrester protects sewage vacuum truck tanks

01/13/2022 | Jing Lyu | Applications
Flame arrester also in the vacuum truck

A pre-volume deflagration flame arrester or – simplified – a flame arrester prevents flame transmission, through a measuring instrument, into a zone 0 (gas) hazardous area. This protective function, therefore, plays an important role, especially in process …

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Calibration of ultra-high pressures over the entire measuring range

11/17/2021 | Jing Lyu | Applications
Calibration of ultra-high pressure

The calibration of ultra-high pressures is a challenge. This is because conventional test instruments are only designed for pressures up to 1,000 bar. In many applications, however, sensors work with several times this value, for example in the automotive industry. If …

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Switch with “CCC Ex” for the Chinese market

10/05/2021 | Iris Benkstein | Know-how
Switch with CCC Ex

CCC - without proof of China Compulsory Certification, many industrial goods are denied access to the "Middle Kingdom". Since 1st October 2020, this compulsory marking has also extended to products with explosion protection. Therefore, all WIKA instruments that fall …

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Welcome to the WIKA blog

In our English-language blog you can expect many interesting articles on pressure, temperature, level, force and flow measurement, and also on the subject of calibration technology. Furthermore, there are various insights into the world of the WIKA group of companies – seen from different angles.

Most-read articles
  • Certification for fire-protection applications
  • Safety features of welding pressure gauges
  • Hydrogen and pressure sensors – What must be observed?
Accuracy Calibration Ex protection Hydrostatic International Pressure Pressure gauge Pressure sensor Pressure switch Safety Social commitment Standards/approvals/directives Subsidiary Temperature Thermometer
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