Fully automatic dosing device

Automatic dosing device-A metering pump is a high-precision conveying equipment that meets various process requirements, can be adjusted, and quantitatively transports various chemical liquids. The metering accuracy reaches ± 1%, and it is suitable for conveying liquids with a temperature of -30 ℃ -200 ℃, viscosity of 0.3-800mm2/s, and no solid particles. The flow rate can be adjusted within the range of 1.25L-8000L, and the pressure is 0.2-50Mpa. There are more than 150 specifications, and the special pump is suitable for conveying suspended liquids containing a small amount of solid particles with a particle size of less than 0.01mm. This series of products complies with API675 standard. The repeatability accuracy is 1% within the adjustment range of 10:1; The reproduction accuracy is 3% within the 10:1 adjustment range; The linear accuracy is 3% within the 10:1 adjustment range. It can also be connected in series with the same or different machine bases according to user needs, and can transport multiple liquids in different or the same proportion. The liquid cylinder body can operate according to the corrosiveness of different liquids
According to the structural type of the hydraulic end, it can be divided into two categories: plunger type and diaphragm type.
According to the stroke adjustment method, it can be divided into three categories: manual adjustment, electric adjustment, and pneumatic adjustment.
The hydraulic end of the plunger structure is suitable for a wide range of high-pressure processes, and the liquid it transports is non-toxic, non corrosive, and non-volatile.
The hydraulic end of the diaphragm structure is suitable for highly adhesive mud, flammable, explosive, volatile, highly toxic and radioactive liquids, working fluids that are prone to deterioration due to retention, and working fluids with high viscosity. It can ensure the leak free operation of the pump.
The hydraulic end of the insulated structure is suitable for high melting point liquids, and the pump casing and packing box are insulated with jackets to prevent liquid solidification.
The material for the hydraulic end is usually 1Cr18Ni9Ti, and other materials such as PTFE, PVC, and 1Cr18Ni12Mo2Ti can also be used depending on the conveying medium
Automatic dosing deviceThere are two basic forms of metering pumps according to pump head classification: plunger type and diaphragm type. Piston pumps have the characteristics of reasonable structure, simple operation, accurate measurement, convenient maintenance, and low price. Diaphragm pumps have no leakage, high safety, and are suitable for transporting various flammable, explosive, highly toxic, highly corrosive, highly stimulating, radioactive, and valuable special liquid media. The regulating value of the metering pump is intuitive and clear, works smoothly, has low noise, is easy to maintain, and can also be used in parallel or series.
Automatic dosing deviceMetering pumps have been widely used in environmental protection, chemical industry, water treatment, food processing, pharmaceuticals, atomic energy, oil refining, water plants, power plants, papermaking, textiles, mining, laboratories, national defense and scientific research, automobile manufacturing and other units. Municipal water treatment and wastewater treatment, additives for petrochemical and chemical industries, boiler and cooling water treatment pulp, coatings and additives, laboratory applications, gold treatment for food and beverage and pharmaceutical industries, electronics industry.
Main products:
1、 Metering pump: 1. Piston type;
2. Hydraulic diaphragm type;
3. Mechanical diaphragm type;
4. Series combination type;
2、 Attachments: metering pump back pressure valve, safety valve, pulsation damper, agitator, check valve, multifunction valve, bottom valve filter, etc.
3、 Dosing ratio device: automated process ratio system, automated quantitative dosing device

Automatic dosing deviceApplication
When runningAutomatic dosing deviceWhat are the important things to pay attention to when doing so?
When operating the dosing system, pay attention to the following points:
A. Add some pressure
B. Stroke frequency
C. Suction height
D. Altitude
E. The corrosiveness of chemicals

When the outlet of the metering pump is at atmospheric pressure, is there any way to improve the pump's repeated metering accuracy?
Installing valve springs on the discharge valve of the metering pump can improve the accuracy of repeated metering, butThe improvement method is to install a back pressure valve at the end of the pipeline.
How to adjust the back pressure valve?
Never exceed the working pressure of the metering pump.
When there is pressure at the suction end of the metering pump, the pressure at the discharge end of the pump should be at least 1 bar higher than the pressure at the suction end