... 380v/400v 5 Please call us for the detailed parametersFSR200G high pressure roots blower|roots pumpKey Features 1, the product line using ... Common base, belt cover, fan, pulley, motor, pulley, V-belts, pressure gauge, suction silencer (with air filter), bolt, safety valve Fourth ... with contract requirements) flexible joint, lubricating oil, exhaust muffler. FSR200G high pressure roots blower|roots pump