How does the Alfa Laval OS Twin Screw Pump work?
The Alfa Laval OS twin screw pump operates based on the principle of intermeshing twin screws to move fluids through the pump chamber. Here’s a breakdown of how the Alfa Laval OS twin screw pump works:
Twin Screw Design: The pump consists of two intermeshing screws, usually with a unique helical profile, rotating inside a tightly sealed pump chamber. These screws have opposing threads that create cavities or “pockets” between them as they rotate.
Fluid Entry: The fluid enters the pump through the inlet port located at one end of the pump chamber. As the screws rotate, they create a continuous suction effect, drawing the fluid into the cavities between the screws.
Fluid Conveyance: As the screws continue to rotate, the fluid trapped in the cavities moves axially along the length of the screws. The helical profiles of the screws push the fluid towards the outlet port at the opposite end of the pump chamber.
Sealing and Compression: The intermeshing of the screws creates a tight seal between the screw threads and the pump chamber walls. This seal prevents fluid from leaking back into the inlet port and ensures efficient conveyance without backflow or slippage. The fluid is progressively compressed and pressurised as it moves towards the outlet.
Discharge: The pressurised fluid reaches the outlet port, where it is discharged from the pump at the desired flow rate and pressure. The pump’s design allows for precise control overflow rates and pressures, making it suitable for a wide range of applications.
Self-Priming and Dry-Running Capabilities: Alfa Laval OS twin screw pumps often feature self-priming capabilities, allowing them to draw in fluids from low-pressure sources or even from dry suction conditions. Additionally, some models are designed to handle intermittent dry running without damage, enhancing their reliability and versatility.
Cleaning and Maintenance: The pump’s design typically includes features for easy disassembly and cleaning, such as quick-opening covers and access to internal components. This facilitates routine maintenance tasks, reduces downtime, and ensures hygienic operation in industries with stringent cleanliness requirements.
The Alfa Laval OS twin screw pump utilises the intermeshing action of twin screws to efficiently and precisely move fluids through a sealed pump chamber. This design results in reliable and consistent fluid conveyance, making the pump suitable for a wide range of hygienic applications. Find out more:
As the Alfa Laval Master Distributor in the UK, ITS are here to support with your pump selections – contact us to discuss a requirement you have for the OS Twin Screw Pump: 01675 465191 / sales@industrialtradingsolutions.com
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