Servo-assisted 2/2-way Diaphragm Valve – Type 290

by Bürkert Fluid Control Systems

  • Servo assisted diaphragm valve up to DN50
  • Fix-coupled diaphragm opens without differential pressure
  • Vibration-proof, block screwed coil system
  • Energy-saving power reduction for all DC variants
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Servo-assisted 2/2-way diaphragm valve – Type 290

  • The type 290 valve is a servo assisted diaphragm valve of the S.EV series
  • Valve opens without differential pressure
  • Opening process is facilitated by the fix coupling of the diaphragm to the magnetic core
  • Integrated ‘soft-kick’ function ensures gentle opening
  • Various diaphragm materials are available depending on the actual application
  • Stainless steel body variants complete the offering
  • Solenoid coils are moulded with a chemically resistant epoxy
  • A Kick and Drop assembly is moulded into the coil of all DC variants to reduce electrical power consumption
  • NEMA 4X is available on request

Key features

  • Very high flow rates
  • Mechanical pipe connection: 1/2″ to 2 1/2″, flange
  • Nominal width: 12 to 50 mm
  • Versions: NC, 2-way
  • Pressure range: 0-16 bar (up to DN25), 0-12 bar (up to DN50)
  • Temperature range: -30 to +120 °C (medium)
  • Protection class: IP65
  • Optional approvals/conformities: UL HazLoc Class I Div. 2, UL/UR, DNV (in progress), oxygen and hydrogen suitability


  • Hydrogen production – Electrolyser
  • Hydrogen use – Stationary fuel cells, Mobile fuel cells
  • Hydrogen test benches – Industrialization, Scale up
  • Hydrogen infrastructure

Contact us

  • With more than 25 years of experience in the hydrogen industry, we know what matters when it comes to controlling gases and liquids. Interested? Feel free to contact us via the vendor form.
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Servo-assisted 2-2-way Diaphragm Valve - Series 290

Technical Datasheet - Series 290

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      Bürkert Fluid Control Systems

      Innovative fluidic solutions for a clean future with hydrogen

      Bürkert offers the right fluidic solutions for the complete hydrogen value chain. Bürkert approved products ensure high safety, the highest possible output and low-maintenance operation - today and in the future.

      In addition to valves, sensors, and automation, Bürkert is also a reliable partner when it comes to customised and tailor-made solutions. With more than 20 years of experience in the hydrogen industry, they know what matters. Together with you, Bürkert will find the best and most efficient solution for your fluidics challenges.

      In doing so, Bürkert is your partner, from development to large-scale production - for a quick time-to-market and long-term market success.

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