Manual Peristaltic Pump
Flow range:0.0053-6000ml/min
2.Basic peristaltic pump:LabM series
Flow range:0.0053-3100ml/min
3.Industrial peristaltic pump
Speed range:0.1-600rpm
Description
Technical Parameters
Manual peristaltic pump, as the name suggests, is a device that pumps fluid by manually driving the roller to alternately squeeze and release the pump tube. The working principle of this pump is similar to squeezing a hose filled with fluid with the finger. With the movement of the finger, negative pressure is formed in the tube, and the liquid flows along with it. The equipment is mainly composed of pump head, hose and pressure roller and other components, pump head provides roller working environment, responsible for loading and fixing the hose; Hose is the main component of conveying fluid, generally made of wear-resistant thermoplastic elastomer; Pressure rollers are mounted on both sides of the hose and are manually compressed and released.
It is a fluid conveying equipment with high precision, corrosion resistance, small shear action, simple operation and easy maintenance, and has a wide range of applications in many fields.
Parameter
Imbibition capacity
Definition of self-priming capacity
The self-priming capacity of peristaltic pump refers to its ability to extract fluid from low level or negative pressure environment. This capability allows the peristaltic pump to self-imbibe the fluid without the need for external auxiliary equipment, thus simplifying the operation process.
Characteristics of self-priming ability
Dependent on the negative pressure inside the hose
The self-priming capability of the device depends on the negative pressure inside the hose. When the roller squeezes the hose, negative pressure is created inside the hose, which sucks in fluid. This mechanism allows it to have a certain self-priming height, which can usually reach a certain height of the water column, depending on the hardness and material of the pump tube.
Affected by the hardness of the pump tube
The hardness of the pump tube has an important impact on the self-priming capacity of the peristaltic pump. Stiffer pump tubes may have better self-priming capacity, but may also lead to increased pulsation during fluid transfer. Therefore, when choosing a pump pipe, it is necessary to make trade-offs according to specific application scenarios and needs.
Affected by fluid properties
The properties of the fluid, such as viscosity, density and surface tension, also affect the self-priming capacity of the manual peristaltic pump. For example, a fluid with a high viscosity may be more difficult to inhale, while a fluid with a low viscosity is relatively easy.
Methods to improve self-imbibition capacity
Select the right pump tube
Select the right pump tube material and hardness according to the application scenario and demand to improve the self-priming capacity of the peristaltic pump.
Optimization of roller design
By improving the design of the roller, such as increasing the number of rollers or adjusting the position of the roller, the self-priming capacity of the peristaltic pump can be further improved.
Keep the pump tube clean
Regularly clean the pump tube and roller to prevent blockage and wear to ensure the normal operation of the peristaltic pump and the best self-priming capacity.
Factors affecting self-priming ability
Pump tube characteristic
Pump pipe material
Pump tubes of different materials have different effects on the self-priming capacity of peristaltic pump. In general, soft and strong materials have less negative impact on the self-priming ability, while hard, brittle materials may reduce the self-priming effect.
Pump pipe inner diameter
The inner diameter of the pump tube will affect the self-priming capacity of the peristaltic pump. A pump tube with a smaller inner diameter may have better sealing, thereby improving the self-priming capacity to a certain extent. However, too small inner diameter may also lead to increased resistance during fluid transportation, affecting the self-priming effect.
Pump pipe length
The length of the pump pipe is also an important factor affecting the self-priming capacity. Longer pump tubes may increase the resistance and pressure loss of the fluid during delivery, thereby reducing the self-priming capacity.
Roller design
Number of rollers
The number of rollers affects the self-priming capacity of the peristaltic pump. Increasing the number of rollers can improve the compression effect of the pump head, thereby improving the self-priming capacity to a certain extent. However, too many rollers may also lead to complex pump head structure and increase maintenance costs.
Roller diameter
The diameter of the roller also has a certain effect on the self-priming capacity of the peristaltic pump. A larger diameter roller may have a better compression effect, but it may also lead to increased pump head volume, which is not conducive to miniaturization design.
Fluid characteristic
Fluid viscosity
The viscosity of fluid is one of the important factors affecting the self-priming capacity of peristaltic pump. High viscosity fluids may be more difficult to draw into the pump because greater negative pressure is required to overcome the internal friction of the fluid.
Fluid density
The density of the fluid also affects the self-priming capacity of the peristaltic pump. A denser fluid may require greater negative pressure to be sucked into the pump.
Fluid surface tension
The surface tension of the fluid is also a factor affecting the self-priming capacity of the peristaltic pump. Fluids with higher surface tension may be more difficult to draw into the pump because greater negative pressure is needed to overcome the surface tension.
Use environment
Ambient temperature
The ambient temperature will affect the working performance and self-priming capacity of peristaltic pump. When the ambient temperature is too high or too low, it may affect the performance of the pump head and pump tube, thereby reducing the self-priming capacity.
Altitude
Altitude also affects the self-priming capacity of the peristaltic pump. With the increase of altitude, the atmospheric pressure gradually decreases, and the self-priming capacity of the peristaltic pump will be weakened accordingly.
Operation and maintenance
Operation method
The correct operation method can improve the self-priming capacity of peristaltic pump. For example, before starting the pump, ensure that the pump tube is filled with fluid to avoid dry rotation and damage to the pump head.
Maintenance
Regular maintenance and maintenance of the peristaltic pump can ensure its proper operation and optimal self-priming capacity. For example, regularly replace worn pump pipes and rollers, clean pump heads and rollers, etc.
Storage of filtration devices
When the manual peristaltic pump is not used for a long time, the filter device should be removed, cleaned and dried and stored in a dry and ventilated place to avoid exposing the filter device to a wet or corrosive environment, so as not to damage the filter screen or connecting parts. The storage of the filter device needs to follow certain steps and precautions to ensure its performance and extend its service life. Here are some suggestions:
Preparation before storage
Cleaning and drying
Before storage, the filter device should be thoroughly cleaned to remove impurities and dirt attached to the filter screen.
After cleaning, the filter should be dried to ensure that there is no moisture residue inside and outside.
Check and record
Check whether the filter screen and connecting parts of the filter device are intact.
Record the usage and cleaning date of the filter device for follow-up and maintenance.
Storage environment
Temperature and humidity
The ambient temperature of the storage filter device should be kept between 10 and 30 ° C to avoid damage to the filter device caused by too high or too low temperature.
The relative humidity should be kept at a low level to avoid mold or deformation of the filter in a humid environment.
Avoid direct sunlight
When storing the filter device, avoid direct sunlight to avoid aging or deformation of the filter material.
Dust and pollution prevention
The environment where the filter device is stored should be kept clean to avoid dust and pollutants entering the filter screen.
The filter can be stored sealed in a dust bag or box.
Storage location
Smooth placement:
When storing the filter device, it should be placed smoothly to avoid being squeezed or collided.
Avoid vibration:
The storage location should be far away from the vibration source to avoid vibration damage to the filter device.
Storage period and inspection
Storage period:
The storage period of the filter device should be determined according to the manufacturer's recommendation or the actual situation.
If the storage time is too long, it is recommended to check and maintain the filter device regularly.
Regular inspection:
During the storage period, the filter device should be checked regularly, including whether the filter is deformed and whether the connecting parts are loose.
If abnormal conditions are found, they should be handled or repaired in time.
Precautions
Avoid contact with corrosive substances:
When storing the filter device, avoid contact with corrosive substances to avoid damage to the filter screen or connecting parts.
Follow manufacturer's guidelines:
When storing and using the filter device, follow the instruction manual or instruction manual provided by the manufacturer.
Professional maintenance:
If the filter device fails or needs maintenance, it is recommended to contact the manufacturer or professional maintenance personnel for treatment.
Through the above steps and precautions, you can effectively ensure that the filter device of the manual peristaltic pump maintains its performance and extends its service life during storage. At the same time, it can also provide a reliable guarantee for the subsequent filtration operation.
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