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The highest purity steels are made by removing hydrogen from molten metal under vacuum. Combine this with vacuum impregnation or coating and you have the building blocks for anything from Aeroplanes to Xylophones
The Edwards single stage liquid ring vacuum pumps provide the optimum solution for many rough vacuum applications in the chemical and allied process industries. Single stage liquid ring pumps are suitable for continuous operation on pressure from atmosphere down to 100 mbar. The single stage configuration can handle wet corrosive process streams and are tolerant of particulates while offering minimal maintenance requirements, vibration and noise.