Description of the installation position of the vacuum flapper valve

- Manual drive: optional - pneumatic drive: comfortable

- Electromagnetic drive: optional (corrugated pipe seal); sealing surface facing vacuum (fluorine apron seal)

The pressure difference on the valve plate when turned over:

≤1.2×105 Pa

Valve body and valve seat leakage rate: ≤1.3×10-7Pa·L·s-1

Advocate the number of cycles before initial maintenance: 200,000 times

Body baking temperature: ≤150°C