What Is a Hose Pump?
A Hose Pump is a pump that uses a hose-like tube to transfer liquid.
Rotation of an internal rotor compresses the hose and pushes the fluid out. It is a type of positive displacement pump that transports fluid through a change in volume of the Hose Pump.
Generally, highly flexible tubing is used, making it possible to pump liquids with complex shapes and high viscosity. Because they are also suitable for pumping liquids that may be contaminated, they are widely used in the medical, food industry, and environmental fields.
They are highly durable and reliable and can withstand continuous operation for long periods of time. The agitation and pulsation of the fluid flowing through the hose is minimal, and maintenance is very easy, requiring only hose replacement and cleaning.
Uses of Hose Pumps
Hose Pumps are used in a wide range of applications. The following are examples of applications for Hose Pumps:
1. Medical Applications
Hose pumps are used to transport medications, tube feedings, and blood for dialysis. Hose Pumps are suitable for medical applications where safe transfer of fluids is required due to their precise flow rate and flow control. In addition, the characteristics of hygienic transportation by changing hoses make them useful in the medical field.
2. Food Industry
Used to transport drinking water and liquid raw materials. Cosmetics and detergents may also be transported. They play an important role in maintaining food quality and preventing contamination and cross-contamination.
3. Environmental Field
They are used to discharge contaminated seawater and remove sludge. Hose Pumps are used in septic tanks to pump up sewage and sludge. Hose Pumps are suitable for transferring contaminants and contribute to environmental protection in a variety of industries.
Because of their characteristics, Hose Pumps are also used to remove wastewater and toxic substances generated in factories and manufacturing plants. Hose Pumps can effectively transfer highly viscous wastewater and toxic substances such as chemicals.
4. Research Field
Hose pumps are used to pump analytical samples and reagents. The high accuracy of the pumps makes them suitable for scientific research and analysis where accurate transfer is required.
Principle of Hose Pumps
Hose Pumps are pumps that use a flexible hose. The rotation of the rotor compresses the hose and suctions and pumps the liquid. Hose Pumps have a cylindrical part called a rotor.
Multiple rollers line the circumference of the rotor, which rotates so that it clamps the hose. As the rotor rotates, the rollers crush the hose, and the compression causes the liquid to move forward in the hose.
At this point, a vacuum is created where the hose is expanded, and the liquid is sucked in. The rotor then rotates and compresses the hose, forcing the liquid out of that area. In this way, the system utilizes a mechanism whereby liquid is suctioned through the hose and then compressed and transferred.
It is extremely durable and can transfer various types of liquids and highly viscous liquids. The flexible hose also provides high accuracy and reduces the risk of cross-contamination.
How to Select a Hose Pumps
When selecting a Hose Pump, as with any other pump, consider the type of liquid, flow rate, head, and other factors.
1. Type of Liquid
Depending on the type of liquid, the Hose Pump may need to be resistant to the material it is made of. When pumping highly corrosive liquids such as acids and alkalis, it is necessary to check the resistance of the material.
2. Required Flow Rate
After confirming the type of liquid, the next step is to check the required flow rate. The required size and type of pump will vary depending on the flow rate to be transferred. The required transfer volume must be determined in advance, and the appropriate Hose Pump must be selected accordingly.
3. Required Lift
The required lift is selected based on the difference in elevation and distance to the destination. Note that insufficient lift will prevent the pump from pumping the liquid. The required lift varies depending on the viscosity of the liquid, so the specific gravity and viscosity of the liquid should be checked in advance and used in the calculation.