Equipment to get vacuum by continous supplying Nitrogen or Air (hearinafter called working gas).
It is used as generator of vacuum in purging used remain gas or atomoshere inside piping.

Body integrated vacuum generating function
Suppying connection of working gases
Discharged connection
Vacuum connection

1,Connect each connestion. In case that vacuumed gas is dangerous, the safety device for discharing the gas is required.
2,Supply the working gas to suppkying connection
3,Start absorbing from the vacuum connecion and get vacuum in connecting piping or device.