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Мембранный клапан MV3-VCR

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
Materials
Body:
Diaphragms:
Other gas wetted parts:
Valve seat:

stainless steel 1.4404
Hastelloy C276

stainless steel 1.4404 
PCTFE or PVDF

Surface roughness
(gas-wetted areas)
Ra, max. ≤ 0,25 µm
Ra, Avg. ≤ 0,13 µm
Leak rate 
to atmosphere:
via seat:

< 1 x 10-9 mbar l/s He
< 1 x 10-6 mbar l/s He
Operating pressure
300 bar
Cv-value 0,33
Nominal size
DN 4
Temperature range -30°C to +60°C
In- / Outlet
1/4" VCR-male
1/4" VCR-female
tube stub 1/4"x28mm


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