... /400v 5 Please call us for the detailed parametersFSR50 roots vacuum blowerFirst, Key Features1, When the pump is ... rate changes a little, having the advantage of transmitting forced air.Second, standard accessories: Common base, belt cover, fan, ... motor, pulley, V-belts, pressure gauge, suction silencer (with air filter), bolt, safety valveThird, special attachmentslike flexible joint, lubricating ...