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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

Function

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

Actuation

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

 

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Technical Data

Technical DataTechnical Design
Service fluidsN2, O2, Ar, H2, He, NG*
Operating temp. fluid -30 °C to +50 °C
Operating temp. enviroment -30 °C to +50 °C
Body material stainless steel
Actuator piston actuator, pneumatic single-acting
Seat sealing metal/PCTFE seat leakage rate 1*10-6 mbar*l/s
Seat sealing metal/PTFE seat leakage rate 1*10-6 mbar*l/s
Seat sealing metal/metal seat leakage rate 1*10-3 mbar*l/s
Body sealing metal seal ring He leakage rate to atmosphere 1*10-8 mbar*l/s
Stem sealing stainless steel bellow physically tight
2nd stem sealing safety-O-ring/grooved ring (Viton)
Surface treatment machined, ground, electro-polished or passivated**
Body shape straight
Installation position opt. preferably horizontal in flow direction, actuator on top
Material certificates DIN EN 10204/3.1 AD2000-A4
Actuating pressure 6 + 0,5/-0,0 bar, dry compressed air or nitrogen
End connect. for actuating air female thread 1/4"

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