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Two stage liquid ring vacuum pump in coal industry

As the demand for coal mine is strengthened, it has become the demand of coal mine profession to extract gas with water ring vacuum pumps, especially large liquid ring vacuum pumps. For example, a number of super large liquid ring vacuum pumps ordered by a Mining Bureau in Shaanxi Province last year are used to extract gas. In some large coal mines, 7-8 large pumps over 100 m3/min are used. With the further strengthening of operation, large and super large liquid ring vacuum pumps will be more and more widely used in coal mine system.


In recent years, China has launched a number of large-scale capital construction and technological transformation projects. The realization of these projects requires a lot of raw materials of PVC, especially the prosperity of real estate, which has increasingly promoted the development of the PVC profession. According to the calculation of the chlor-alkali profession, China produced 4.1 million tons of PVC in the last year and imported 200 tons. It is precisely because of the rapid increase in demand that the chlor-alkali companies in China have been revamped and expanded, and many new companies have been established in the past one or two years.


Many phosphate fertilizer companies still need large pumping capacity when the pressure is 80-lOhPa. Therefore, two-stage liquid-ring vacuum pump and two-stage liquid-ring vacuum pump with air ejector have common advantages when they are used in this condition. Many fertilizer companies have screened reciprocating vacuum pumps with high oscillation noise and high vacuum, replaced by two-stage liquid-ring vacuum pump, and received a comparison. Good effect, it can be said that two-stage liquid ring vacuum pump will be more and more widely used in this industry.

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2SK Liquid Ring Vacuum Pump

ModelSuction capacityUltimate vacuumPowerspeedWater supplyInlet/outlet diamWater inlet
m³/minMPa(G)KWr/minL/minDN(mm)(mm)
2SK1.51.35-0.0974144010-1540G1/2”
2SK-32.7-0.0987.5/11144015-2040G1/2”
2SK-65.4-0.09815146025-3565G1/2”
2SK-1210.8-0.09822/3097040-50100G1/2”
2SK-2018-0.0984574060-80125G3/4”
2SK-3027-0.09855/7574070-90125G3/4”


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