... to food, drink,ect 3RP12/ 1.0 rotary lobe pump with self-priming abilityFeature:It belongs to ... , etc.Structure Feature:It's mainly composed of rotary lobe, shaft seal,gear box. A pair of ... synchronous driving gear drive rotary lobe to deliver medium.The shaft seal can ... long time.You needn't disassemble gearbox but adjust rotary lobe chearance because of special assembling way. The ...