What Is The Difference Between Single And Twin Screw Pumps?

Screw pumps are a particular type of positive displacement pumps in which a progression of screws move in a 360° rotational movement inside a casing. They are also called "water screws pumps". They are likewise perceived as the most dependable pump for different operations because of their prevalent pull abilities and economic support for a similar speed range.

Applications & Uses of Screw Pump

Screw pumps are mainly used on fluids of higher viscosity, moving these fluids with screw pumps results in energy efficiency and a relatively compact machine. Screw pumps with more than 2 screws are normally used on lubricating fluids only because the screws are not geared together and are relying on the liquid to lubricate the screws.

The main applications for a screw pump are oil-based fluids, tar bitumen, adhesives (industrial type), chemicals, and dairy products.

With a twin screw pump, the screws are equipped which keep the screws from reaching one another and can consequently be utilized on non-lubricating fluids, chemicals, and foodstuffs, and so forth Twin screw pumps are fit for a higher stream rate than higher screw pump types i.e 2 screws.

Difference Between A Single And A Twin Screw Pump

• A single screw pump also called Progressive Cavity Pump normally works more slowly inside a rubber housing known as a stator. They are commonly utilized for sludge and other viscous fluid transfer.
• Single screw pumps for the most part work through a gearbox so their RPM is a lot slower than a twin or triple screw pump. They handle fluids tenderly importance their constitution isn't changed. PC pumps handle solids, and during their life expectancy, the stator is supplanted freely by the rotor.
• A single rotor can have the life expectancy of a few stators. As the pump has rubber inside and fixing parts it cannot be utilized for solvents however can be utilized for most of the different liquids.
• Such pumps don't have an inherent help valve to forestall the unnecessary development of strain meaning an outer one or pump-mounted alleviation valve ought to be added during.
• A twin screw pump is normally utilized for more slender fluids and works at full engine acceleration (to 3600rpm at 60hz) as they commonly don't use a gearbox. Such siphons are utilized for more slender fluids without solids as the clearances are more modest between the driving and idler screws. The two screws ought to be supplanted as a set during upkeep.

Conclusion

A screw pump delivers a known amount of fluid with each rotation. There are many types of screw pumps based on the number of screws, such as one screw up to five screws. All these types of pumps are used for different applications in different industries depending upon their uses. 

However, if you have any questions about these pump types, or looking to buy the best single screw pumps, contact Risansi. We are the leading single screw pump manufacturer and supplier for the sizing & design of Risansi Screw Pumps in India. We offer a wide range of Screw Pumps including the twin screw pump and Multi Screw Pumps for both the Chemical and Process Industries.

Feel free to register at Risansi and then leave your questions.