Мембранный клапан MV3-VCR
Product features
- Stainless steel valves for manual or automatic (pneumatic) shut-off
- Diaphragm metal-to-metal sealed to atmosphere
- Fully functional even when valve is evacuated
- Minimized internal volume for short purge times
- No parts in the gas-wetted area exposed to friction or torsional stress provide minimum particle generation
- 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)
- 100 % Helium-leak-tested
- Assembly in cleanroom class ISO 5.0
- Modular design
- Pneumatic actuator optional for line pressure 25, 100, 200 and 300 bar
- Optional with inductive proximity switch
| Technical data | ||
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Materials Body: Diaphragms: Other gas wetted parts: Valve seat: |
stainless steel 1.4404 Hastelloy C276 stainless steel 1.4404 PCTFE or PVDF |
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Surface roughness (gas-wetted areas) |
Ra, max. ≤ 0,25 µm Ra, Avg. ≤ 0,13 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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Operating pressure |
300 bar |
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| Cv-value |
0,33 |
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Nominal size |
DN 4 |
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| Temperature range |
-30°C to +60°C |
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In- / Outlet |
1/4" VCR-male 1/4" VCR-female tube stub 1/4"x28mm |
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