Purge- and connection block SBE/3-MV3
Product features
- Minimized purge volume of only 1,4 cm³
- 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
| Technical data | ||
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Materials Body: Diaphragm: Other gas wetted parts: Valve seat: |
stainles steel 1.4404 (SS 316L) Hastelloy C276 stainles steel 1.4404 (SS 316L) PCTFE or PVDF |
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Surface roughness optional: |
Ra ≤ 0,25 µm Ra ≤ 0,18 µm |
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Leak rate to atmosphere: via seat: |
< 1 x 10-9 mbar l/s He < 1 x 10-6 mbar l/s He |
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Pressure range Manual valve: Pneumatic valve: |
max. 300 bar 25 / 100 / 200 / 300 bar |
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| Cv-valve |
0,24 (kv = 0,2) |
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Nominal size |
DN 4 |
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Cylinder connection |
- acc. to DIN 477 depending on gas type - acc. to other standards (e.g. BS, AFNOR, UNI) upon request |
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