Turbomolecular Pump for Tube Furnaces
The turbomolecular pump consists of stators between several high speed rotors. The rotational speed is about 90,000 revolutions per minute. At these speeds, the rotor is now in the range of the particle velocity enabling gas to be pushed through the pump. When combined with a pre-vacuum pump, the achievable vacuum level is in the high vacuum range or better.
Turbomolecular pumps are the most convenient and frequently used pumps for high and ultra-high vacuum operation. Very high atmospheric purity of the furnace chamber is achieved as the pump easily removes heavy, slow particles, such as hydrocarbons.
Carbolite Gero's turbo pump version consists of vacuum pump, inert gas package, vacuum gauge, vacuum tight valve, bypass for fast purging, gas outlet valve and safety overpressure valve. In a cold, clean, dry and empty furnace the turbo pump option reaches 5 x 10-5 mbar.
