What should I consider when choosing a stainless steel chemical pump?

　　Chemical pump materials are alloy steel, stainless steel, cast iron, cast steel, composite materials, non-metallic materials, etc., of which stainless steel, cast iron, alloy materials are more commonly used. All stainless steel corrosion-resistant chemical pump application occasions have chemical, petroleum, metallurgy, food, brewing and other industries used in the field, stainless steel chemical pump selection need to pay attention to what?

　　Stainless steel chemical pump selection need to pay attention to the total flow and head, whether self-priming, conveying medium, construction methods, reasonable selection of motor.

　　What factors should be considered when selecting stainless steel chemical pumps

　　Total flow and head

　　The main performance parameters of stainless steel chemical pumps are total flow, head, specifications, motor output, cavitation margin, media, etc. This is the selection of stainless steel chemical pumps can not be missing model parameters, if the selection of errors, it is possible to choose a large or small, so the stainless steel chemical pump selection should be correct.

　　Whether self-priming

　　There are many newcomers will be centrifugal pumps and self-priming pumps these two pumps confused, will think that the stainless steel chemical pumps can not be self-priming, after testing a lot of centrifugal pumps are centrifugal fans, assuming that the need for self-priming need to be clear about the height of self-priming, this is because each self-priming pumps suction range is different, we need to select the appropriate stainless steel chemical pumps products.

　　Conveying medium

　　Want to understand the chemical pump conveying medium, we must look at the chemical pump pumping medium, if it is cold water, you can choose metal or pig iron, if it contains corrosive liquids, such as liquids containing acidity and alkalinity, you can choose plastic or metal chemical pump products, it is recommended that you choose fluorine plastic alloy chemical pump products.

　　Structure

　　Chemical pumps are more common in the use of vertical or horizontal pumps, when the user's space is relatively small, it is recommended to choose vertical stainless steel chemical pumps, when the user needs to use the process is more silent, safe, non-sparking stainless steel magnetic centrifugal pumps can be selected products.

　　Reasonable choice of motor

　　Stainless steel chemical pump applications can be divided into ordinary motor or explosion-proof motor, if it is in the ordinary production workshop can use ordinary motor, if it is used in flammable and explosive occasions can choose explosion-proof motor, if it is used outdoors can be added to the ordinary motor on the installation of an iron boron to isolate the rain and snow.

　　Stainless steel chemical pump selection should consider what parameters

　　1, first confirm that the chemical pump to transport the liquid must be selected chemical pump material and seal material, otherwise due to the pump body or seal material can not withstand the corrosion of the liquid, which will cause delays in chemical production and unnecessary economic losses, so in the process of selecting chemical pumps, users must inform the pump manufacturer of the name of the medium transported and the temperature of the medium in order to select the appropriate chemical pump products.

　　2, followed by the required chemical pump flow and head, head must be confirmed, in the selection of chemical pump purchasing staff is to understand the chemical pump conveying height, distance, the number of elbows and valves and accurately inform the chemical pump manufacturers of the number of sales staff, so as to select a suitable chemical pump model.

　　3, another point to note is that you must confirm the specific gravity of the chemical pump conveying medium, viscosity, and whether it contains particles and impurities, if the specific gravity is too large in the original chemical pump motor based on the choice of a larger motor power, viscosity is too large to consider the choice of a low-speed chemical pump products or the choice of air-driven pneumatic diaphragm pump products.

　　4, spindle seal and its auxiliary system selection: According to the actual case analysis, the spindle seal caused by the failure of the unit accounted for a high proportion of all the failures, some occasions can reach 30% ~ 40% or more, so the selection of the spindle seal is critical. Selection in addition to the physical and chemical properties of the medium should also be aware of the seal cavity pressure and seal cavity temperature of the medium these two important parameters.