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Spectropur Purge- and connection block SBE/3-MV3
Product
/
SPECTRON
/
Purge devices
/ Spectropur Purge- and connection block SBE/3-MV3
Spectropur Purge- and connection block SBE/3-MV3
BENEFITS
SPECIFICATION
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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