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Spectropur Purge- and connection block SBE/3-MV3

Spectropur Purge- and connection block SBE/3-MV3

  • Minimized purge volume of only 1,4 cm³
  • The capillary tube allows purging into the cylinder valve
  • Metal-to-metal seal to atmosphere using metal diaphragms made of Hastelloy C276
  • All gas-wetted parts made of stainless steel SS 316L, Hastelloy C276, and PCTFE or PVDF respectively
  • Fully functional even when valves are evacuated
  • Minimum particle generation, as no parts are exposed to friction and no spring is in the gas wetted area
  • Embedded soft seat seal made of PCTFE or PVDF permits frequent operation without loss of tightness
  • Modular design for easy replacement of internal parts
  • Clearly legible position indication (on/off)
  • High surface quality
  • 100 % Helium-leak-tested
  • Assembly in cleanroom class ISO 5.0
  • Approved for the use with oxygen up to 250 bar
  • 2 versions: Inlet (gas cylinder) on the right or on the left side (process gas valve is always behind)

 

Materials
Body: SS 1.4404 (SS 316L)
Diaphragms: Hastelloy C276
other gas wetted parts: ES 1.4404 (SS 316L)
Valve seat seal: PCTFE or PVDF
Surface roughness:  Rₐ ≤ 0,25 µm
Surface roughness (gas-wetted areas): Rₐ ≤ 0,13 µm
Leak rate
to atmosphere: 1 x 10⁻⁹ mbar l/s He
via valve seat: 1 x 10⁻⁶ mbar l/s He
Pressure range
Manual valve: max. 300 bar
Pneumatic valve: max. 25 / 100 / 200 / 300 bar
Cv-value:  0,13 (kv = 0,11)
Nominal size: DN 3
Gas cylinder valve connection • acc. to DIN 477 depending on gas type
• acc. to other standards (as BS, AFNOR, UNI) upon request

 

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