Single acting, normally closed (air to open / spring to close), With elastomer seals for high vacuum operation, Additional bellows segments increase the service life, Can be operated in any orientation, Additional O-ring materials available
With elastomer seals for high vacuum operation, Stainless steel body with welded diaphragm bellows, Conductance continuously variable with handwheel (multi-turn), Fully retracting and opening, Additional O-ring materials available
Don't worry we won't leave you in a vacuum