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Image of a blue industrial valve with a silver metal pipe attached, featuring the brand label "VELAN" on its cylindrical body. The valve is vertically oriented and designed for fluid control systems.

Adareg cryogenic safety relief linear control valves

Product Line
  • Cryogenic control valves
Product Type
  • Control Valve and Automation

Features & Benefits

  • Cover to protect components of the actuator and their adjustments
  • Limit switches
  • Air piston (on/off function) which opens the valve by traction
  • Spring-loaded type which maintains the valve in closed position. Its setting load determines the open pressure of the valve.
  • Bellows sealed type to ensure internal/external tightness
  • Thermal color for thermal shield
  • Fiberglass stem for low heat inleak
  • VESPEL plug for radiation resistance.

 

  • Fluid: Helium
  • Temperature: Down to -457°F, -272°C, 1.2K
  • Set pressure: 1 bar up to 25 bar
  • Cold box adaptation: Welding flange
  • Cryogenic extension: As per BS6364
  • Body and seat materials: 316L or 304L, Plug materials: Cu AI alloy or stainless steel
  • Flow characteristics: Linear or =% or on/off
  • Stem tightness: Bellows sealed
  • Seat tightness performance: 10-4 mbar.l/s in standard
  • Across body tightness performance: 10-8mbar.l/s in standard
  • Valve to atmosphere tightness performance: 10-5 mbar.l/s in standard
  • Tightness test means: Cryogenic test bench – Kellog method and mass spectrometer
  • Certificates: EN 10204 3-1 for main constitutive parts of pressure shell

Product Details

Spec Detail
Size Range NPS 1/8 - 12 (DN 6 – 300)
Pressure Class PN 25
Standard Connections Butt weld
Body Material contact Velan

Quality That Lasts

Precision Engineered

Our products, crafted with cutting-edge precision, set the industry standard for quality, reliability, and versatility across an expansive range of applications.

Long-Lasting & Durable

Velan leverages advanced engineering capabilities and innovation to create durable valves that meet critical industrial needs in the areas of nuclear power, mining, oil and gas, and more.

Certified & Tested

Innovation is our DNA. From our first steam trap to advanced cutting-edge valve designs, we are committed to providing solutions that define the highest standards of quality and performance.

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