I was wondering if there are any tips or advice for securing a Viton gasket on a CF flange. One of our flanges would be opened frequently to access our samples but in trying to close it, so we cant ...
Vacuum grease is not "needed" on o-rings to make a vacuum tight seal. Vacuum grease provides two things, 1) lubrication to allow for easier installation of the o-ring. 2) lubrication to allow movement of the sealing surfaces during evacuation. Grease is actually a detriment, as it collects dirt thaRead more
Vacuum grease is not “needed” on o-rings to make a vacuum tight seal. Vacuum grease provides two things, 1) lubrication to allow for easier installation of the o-ring. 2) lubrication to allow movement of the sealing surfaces during evacuation. Grease is actually a detriment, as it collects dirt that can eventually cause leaks.
See less
Securing a Viton gasket on a ConFlat (CF) flange can be challenging because Viton gaskets aren't specifically designed for the knife-edge seal of CF flanges, which are typically used with annealed copper gaskets that form a metal-to-metal seal. However, since you're looking for a reusable solution fRead more
Securing a Viton gasket on a ConFlat (CF) flange can be challenging because Viton gaskets aren’t specifically designed for the knife-edge seal of CF flanges, which are typically used with annealed copper gaskets that form a metal-to-metal seal. However, since you’re looking for a reusable solution for frequent access, there are a few tips and alternative approaches you could try.
Summary of Options:
- Use vacuum-compatible grease to hold the Viton gasket in place.
- Consider magnetic or temporary adhesive solutions.
- Machine an O-ring groove into the CF flange if permanent modifications are acceptable.
- Explore elastomeric seal adapters or switch to flanges with O-ring grooves.
- Ensure careful alignment during closure to avoid shifting the gasket.
- Check for proper alignment.
- Consider spring-loaded Viton seals.
- Consider CF-Compatible O-Ring Seals.
See less