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Abbreviations keys

Abbreviation key

Media temperature

  • C = cryogenic temperature
  • A = ambient temperature

Pressure range

  • LP = low pressure (below 1 bar)
  • MP = medium pressure (up to 40/45/63 bar)
  • HP = high pressure (250 to 420 bar)
  • UHP = ultra-high pressure (420 to 1.000 bar)

Vacuum jacketing

  • No = not suitable for installation in vacuum-jacketed pipes
  • Std = for installation in vacuum-jacketed pipes
  • Opt = suitable for vacuum-jacketed pipes, vacuum flange as option


  • GV = Globe valve
  • CV = Control valve
  • CHK = Check valve
  • STR = Strainer
  • OV = Overflow valve
  • RV = Relief valve


  • M = manual
  • P = electro-pneumatic
  • PR = electro-pneumatic with IP regulator
  • E = electric
  • S = solenoid
  • SPR = spring-based
  • HY = hydraulic


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Parameters: Axius1400_C_CHK_P

DN PN Media temperature Function Actuation Drawing number Single inquiry
6 – 80up to 420ambientCheck valvepneumatic (Air)08-140XSingle inquiry
6 – 80up to 420cryogenicCheck valvepneumatic (GHe)08-140X.12Single inquiry

Technical Data

Technical DataTechnical Design
Service fluidsN2, O2, Ar, H2, He, NG*
Operating temp. fluid -196 °C (-269 °C) to +50 °C
Operating temp. enviroment -259 °C bis +50 °C oder -30 °C bis +50 °C
Body material stainless steel
Actuator bellow actuated, pneumatic single-acting
Seat sealing metal/PCTFE seat leakage rate 1*10-6 mbar*l/s
Seat sealing metal/copper seat leakage rate at seat 1*10-3 mbar*l/s
Body sealing hermetically tight, He leakage rate to atmosphere 1*10-8 mbar*l/s
Stem sealing stainless steel bellow
Surface treatment machined, ground, electro-polished or passivated**
Body shape straight-through
Tightness at seat 1*10-3 mbar*l/s
Installation position any position, installation within the cryogenic medium tank or within vacuum space possible
Material certificates DIN EN 10204/3.1 AD2000-A4
Actuating pressure 6 + 0,5/-0,0 bar, dry compressed air or resp. He gas
End connect. for actuating air female thread G 1/8"
Safety position normally closed (NC) or normally open (NO)

* All dangerous, toxic or acid fluids according to material compatibility.
**Surface treatment can be choosen according to customer specification. See product options