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Water ring vacuum pumps
Water ring vacuum pumps are capable of creating vacuum up to 710mm Hg
only which is far less than what can be achieved by the former . These
prove economical and require less maintenance. Water is used in place
of costly oil and no hassle of frequent oil changing. Requires less
energy to run and enjoys longer life. Even noise otherwise create no
pollution , no fumes and produce every little noise. Higher vacuum
through them can also be achieved when made to work as backing pumps in
systems.
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