...designed to ensure safety and reliability

Work involving highly explosive liquids and gases requires accordingly secured technology. Especially in the oil and gas exploration sectors but also in mines with high dust generation or gas influx, explosion

protection is a hugely important issue. In order to carry out heavy work without risks in such hazardous areas, an explosion-protected valve technology was already developed and implemented years ago.


Apart from explosion protection, the requirements placed on valve technology in the oil and gas sector are extensive, since energy sources are often to be found either in very warm or in extremely cold areas in the world. With valves for ambient temperatures of down to -60°C or up to +90°C, a large temperature range can be covered. Explosion-proof valves are often also used outside in harsh environmental conditions. They not only come into contact with salt water but are also exposed to corrosive gases or substances. Explosion-protection valves are therefore mostly made from corrosion-resistant or stainless materials. Over decades, Wandfluh has developed a broad portfolio of valve and amplifier technology that has proven highly successful in numerous projects.

  • Oil drilling head control
  • Winch power control
  • Flap control on oil and LNG tankers
  • Process control
  • Drilling vessels
  • Compressor stations
  • Gas separation
  • Pipelines



In the oil and gas sector, electronic modules are often housed in a secure control cabinet away from the hazardous area. Alternatively, valves with integrated electronics are available that can be controlled by a CAN bus. The integrated electronics are a well proven amplifier module that can be parametrised with a keypad or the CAN bus using the conventional parameterisation software PASO.

  • Explosion-protection certification for various countries/regions
  • High reliability
  • Broad explosion-protection range of switching and proportional valves from the catalog
  • Corrosion-protection valves, from Zi/Ni through to stainless steel
  • Redundant systems
  • Valve technology with switching position monitoring
  • Reduced electrical power
  • Individual customer-specific adaptations
  • Worldwide customer service