Dosing pump is also called dosing pump, which can be quantified by the liquid transport machinery, is often used to add various types of pharmaceutical equipment. Dosing pump is composed of motor, gear box, cylinder composed of three parts, Department of machinery as dosing pump manufacturers to remind you to pay attention to the following aspects in the selection:

First, determine the pressure:

The actual maximum pressure selected metering pump rated pressure slightly higher than the required, generally higher than 10 ~ 20%. do not choose too high, high pressure will waste energy, increase investment and running cost of the equipment.

Two, determine the flow rate:

Metering pump flow should be selected is equal to or slightly greater than the required process flow. The flow in the range of use metering pump metering pump rated flow range from 30 to 100% is better, at this time to reproduce high precision metering pump. Considering the economic and practical suggestions of the practical need of metering pump metering pump rated flow flow for 70 ~ 90%.

Three, determine the material of the pump head (Ye Liduan):

The specific type of metering pump is determined, according to the property flow of medium selection flow of the material, this step is very important, if the choice is undeserved, will cause damage to corrosive medium flow components or medium leakage pollution system. Serious when still can cause a major accident, if you're not sure, please consult my company.

Other aspects:

You in the choice of metering pump, also need to consider the level of accuracy required for metering pump, the higher the level of accuracy. The greater the input temperature metering pump generally work in 30 - to 100 DEG C, special metering pump and its operating temperature range is more wide (such as high temperature liquid metering pump with insulation jacket, the temperature up to delivery 500 C). For the medium size, we should be less than 0.1mm, for more than 0.1mm medium, can be targeted to the pump flow structure is changed, in order to meet the needs for the viscosity of the medium, the general should be 0 ~ 1000mm/s, the special metering pump up to 6000 mm2/s. mechanical diaphragm metering pump flow the maximum flow is measured under the rated pressure of the calibration (room temperature water transportation), if the pressure drops, the output flow calibration ratio high.