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转子泵

The rotary lobe pump, also known as a roots pump, belongs to the category of positive displacement pumps and is characterised by its ability to self-priming or conditional self-priming. They are valveless in design and consist of two rotary pistons that intermesh and run synchronously. 

The main advantage of rotary lobe pumps is their ability to produce uniform and pulsation-free flow, making them suitable for applications requiring continuous and uniform delivery. They are used in various industries, including oil and gas, chemical, food, and many other applications requiring reliable liquid or gas delivery.