At present, the domestic manufacturers of chemical pumps are: dkzb-type stainless steel flexible pump, dby electric diaphragm pump, hkzb vane pump, IH stainless steel chemical pump, IHF fluorine plastic chemical pump, FSB fluorine plastic chemical pump, CQB Chemical Magnetic pump, IMD chemical magnetic pump, FZB chemical self-priming pump. These chemical pumps are widely used in chemical, metallurgical, pharmaceutical, foil and other industries, have important uses.

For example: IH50-32-160

IH- international standard single-stage single-suction chemical centrifugal pump

50 - suction inlet diameter (mm)

32- outlet diameter (mm)

160 - impeller nominal diameter (mm)

Chemical pump to meet the requirements

(1) must meet the flow, head, pressure, temperature, NPSH and other process parameters.

(2) must meet the requirements of the media characteristics:

â‘  for the transport of flammable, explosive, toxic or expensive medium pump, shaft seal reliable or require the use of leak-free pumps, such as shielded pumps, magnetic drive pumps, diaphragm pumps.

â‘¡ on the delivery of corrosive media pump, requiring over-current components using corrosion-resistant materials.

â‘¢ on the delivery of solids containing solids pump, requiring over-current components wear-resistant materials, if necessary, the shaft seal should be cleaned with a cleaning fluid.

(3) Must meet the site installation requirements.

â‘  For installation in the presence of corrosive gases pump, require anti-atmospheric corrosion measures.

② installed in outdoor temperature below -20 ℃ pump, pump cold requires consideration of cold and brittle phenomenon, the use of low temperature materials.

③ installed in the explosive area of ​​the pump, explosion-proof area should be based on the level of explosion-proof motor.

(4) For plants that require major overhauls every year, the pump's continuous operating cycle should generally not be less than 8000 hours. To meet the 3-year major overhaul requirements, APl610 (8th Edition) provides for continuous operation of oil, heavy chemical and gas industrial pumps at least 3 years.

(5) The design life of the pump is generally at least 10 years. APl610 (8th edition) requires that the design life of centrifugal pumps for the petroleum, heavy chemical and gas industries be at least 20 years.

(6) The design, manufacture and inspection of the pump shall comply with the relevant standards and norms.

(7) When determining the type and manufacturer of the pump, consider factors such as pump performance, energy consumption, reliability, price and manufacturing specifications.

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