What are the key parameters of screw pumps?
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As the title suggests, additionally, how should a screw pump be selected? 3. What are the spare parts for screw pumps? 4. What is a skeleton rubber protective sleeve? 5. What do you know about screw pumps? Thank you, experts.
Screw pumps include single-screw, twin-screw, and triple-screw types； The skeleton rubber sleeve is unique to single-screw pumps ； Screw pumps are used to handle relatively viscous media such as PAC, PAM, and coal tar. Parameters basically refer to flow rate, pressure, and rotational speed
Thank you for your reply and for answering my questions. Could you please elaborate further on what exactly the rubber protective sleeve of a single-screw pump does? Why are single-screw pumps available, but double-screw and triple-screw pumps are not? How to select a single-screw pump? Is it better to keep the rotation speed below 300 r? Thank you!
Key parameters include pressure, flow rate, and power. During maintenance, important parameters are the axial displacement of the screw, the radial clearance, and the clearance with the pump casing. The protective sleeve is usually made of rubber. It is used in applications where the viscosity is high, high pressure is required, and the flow rate is not large; it is commonly employed in lubrication stations. There are three-screw, twin-screw types that I have come across; I have also worked with single-screw types. They are generally used in sewage pumps. As for five-screw types, I have no experience with them.
Thank you for your reply. Where is the protective cover used? Why is it called a skeleton rubber protective sleeve? The skeleton can’t be a transliteration, right? It just feels weird. Is the material of the pump casing the same as that of the suction chamber and the discharge chamber? For sewage, is cast iron or stainless steel more suitable?