The seal part is fluorine resin.
By replacing the internal consumables (O ring and U-shaped cup stickers) it will look like new and is extremely easy to replace.
When stirring or decompression pump is stopped and vacuum holding, the cap 2 is tightened to the maximum extent and the state is very good.
Can be used for vacuum, normal pressure, and fine pressure.
Vacuum accuracy is about 10^-5.
Please use fluorine resin stirrer when attaching stirring rods and plates.