model stainless high pressure vacuum positive displacement lobe gear pump inside show detail rotor for flow rate control and can

rotary lobe gear pump positive displacement hygienic suction case body structure metal stainless steel metallic iron fitting inlet outlet pressure vacuum velocity connection joint tool device instrument component equipment engineering technology product parts industrial industry control flow fluid powerful liquid fuel oil plumbing power move constant transfer conveying transport leaves model high inside show detail rotor rate handle solid variety solvent grease grease