classification
|
problem
|
answer
|
Understanding peristaltic pumps
|
What is the working principle of the peristaltic pump ?
|
The rotating hose is used to roll the flexible hose, and the fluid in the hose moves with the rotation of the wheel, just like the two fingers pinch the hose, and as the finger moves, the liquid flows. Jieheng peristaltic pump uses this principle to form a finger-like squeezing effect between the runner and the pressure block, generating a negative pressure to achieve the purpose of pumping.
|
What are the advantages of peristaltic pumps ?
|
High cleanliness and no pollution: The liquid only touches the hose, which is easy to clean. It takes only a few seconds to replace the hose.
High efficiency and low energy consumption: self-priming, check valve capability
High precision: dispensing and reproducibility can reach 1% to 0.5% .
Low shear: Pumps shear-sensitive liquids and organic solvents to transport solids.
Low maintenance: quick plug , no valves and seals, hose is the only consumable
|
What constitutes a peristaltic pump ?
|
A complete peristaltic pump consists of a drive, a pump head and a hose. The drive is powered and the pump head is a squeezing mechanism. The hose is compressed by a negative pressure to pass the fluid.
|
driver
|
What is the role of the drive?
|
The driver is mainly composed of a motor, a power supply, and a circuit board, wherein the motor provides driving torque, the power supply supplies power to the circuit board, and the circuit board controls the motor.
|
What is the classification of the drive?
|
Generally there are stepper motor drive control system, DC brushless drive control system, brushed DC drive control system, etc. Stepper motor system is the most common, which can accurately control the flow, but the torque is small, it is not suitable for driving large pump head, DC no The brush system provides more torque and is suitable for high flow applications. Brushed DC is generally bulky and heavy.
|
Can the pump head and the drive pump tube be purchased separately?
|
Yes, for ease of use, the pump head and the drive pump tube can be purchased in a flexible and convenient combination.
|
Can a drive drive multiple pump heads simultaneously?
|
Yes, several pump heads can be mounted on the drive shaft of the same drive on one drive.
|
Pump head
|
What is the role and importance of the pump head?
|
The pump head is the execution part, which is very important. Its quality directly affects the quality of the whole product. The material is generally metal material, engineering plastics (high-grade corrosion-resistant PPS plastic, advanced plastic PSU , general engineering plastics, etc.)
|
Does Jay's peristaltic pump have more pump heads and hoses of different calibers?
|
In order to better meet the fluid delivery needs of various industries, we have different drivers, pump heads and hoses to choose from.
|
Pump tube
|
Is the pump tube important?
|
Yes, the pump tube is the pump chamber. The elastic force of the pump tube produces a suction stroke; the strength produces a pressure resistance; the flexibility determines the service life; the inner diameter determines the flow rate, and the wall thickness determines the efficiency of the pump.
|
What is the chemical resistance?
|
Different materials can withstand different liquids depending on the material choice of the pump tubing. Such as strong acid and alkali, organic solvents and so on.
|
How long can the pump tube last?
|
The life of the pump tubing depends on the pump speed and pump pressure, the material and chemical compatibility of the pump tubing, and the abrasiveness of the fluid being delivered.
|
What effect does the pump speed have on the life of the pump tubing?
|
The lower the pump speed, the longer the life of the pump tubing.
|
What is the life of a commonly used pump tube?
|
It varies from hundreds of hours to tens of thousands of hours, depending on the material of the pump tube.
|
Is the pump tube suitable for food and aseptic applications?
|
Yes, the pump tube is a hose for the peristaltic pump, and hoses with different standard requirements can be provided as needed.
|
Can a hose purchased on the market be used for a peristaltic pump?
|
No, the peristaltic pump hose is special, and its wall thickness, elasticity, pressure and anti-wear are required.
|
performance
|
How much flow range can the Jieheng peristaltic pump reach?
|
A low flow rate can be achieved to 0.001ml / min ~ 35L / min. Hose pump can reach a large 50m ³ / h.
|
What is the accuracy of Jieheng peristaltic pump delivery?
|
Jieheng peristaltic pump can deliver and reproduce accuracy of ± 1 to 0.5%
|
What effect does fluid viscosity have on the transfer process?
|
All amounts are based on aqueous fluid 2 0 ℃ being measured. An increase in fluid viscosity will remove the low flow rate.
|
What effect does fluid specific gravity have on delivery?
|
All amounts are based on fluid 2 0 ℃ specific gravity of water is 1 and measured. If the specific gravity is increased, the flow rate and flow rate are divided by the specific gravity.
|
Does Jieheng Peristaltic Pump need to be equipped with anti-backflow check valve?
|
No need, the peristaltic pump itself has a shut-off valve function that can prevent backflow in both directions.
|
Can Jay's peristaltic pump run dry?
|
Yes, the principle of the peristaltic pump determines that the pump can be idling dry and can pump gas, liquid, gas-liquid mixture.
|
Can the JIHPUMP peristaltic pump deliver slurry and abrasive liquids containing impurities?
|
can. The liquid delivery particles and impurities ≤ diameter diameter diameter pump to 1/3, depending on the material viscosity pastes and elastic pump tube.
|
Does the JIHPUMP peristaltic pump have self-priming capability?
|
In some cases, Jieheng peristaltic pump can produce a vacuum of 660mm Hg, which is 8.8m water column height.
|
Is the flow and speed of the JIHPUMP peristaltic pump proportional to the speed of the pump head runner?
|
Yes, the pump head produces a fixed flow output every revolution, the faster the speed, the greater the flow rate, the limit flow speed is generally about 400rpm .
|
Does the JIHPUMP peristaltic pump have no siphon?
|
No, the pump tube of the peristaltic pump is always pressed and closed by the pump head clamp and the runner, so that the natural flow of the fluid does not occur as long as the pressure across the pump tube is within the rated pressure range of the pump tube and the pump head.
|
Can the JIHPUMP peristaltic pump be delivered in reverse?
|
Yes, the peristaltic pump can work both positively and negatively.
|
What is the maximum export pressure?
|
The rated pressure of Jieheng peristaltic pump can be divided into three types according to different systems, 0.17MP , 0.2MP , 0.27MP . It depends on the pump head model and hose;
Jieheng high pressure hose pump pressure can reach 0.6MP-1MP .
|
What is the maximum inlet pressure?
|
Usually the pressure is 0.27M P , which will vary depending on the wall thickness and material of the pump tube.
|
What is the maximum suction height?
|
The maximum suction can reach 8.8m water column.
|
