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The vacuum pump is separated from the main volute pump (mounted type and
separate type).
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Ordinary water (city water and industrial water) can be used as circulating
liquid in the vacuum pump (except S02 type).
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Circulating liquid should be supplemented when it is under the marked level
on the level gauge.
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Fill with circulating liquid up to the level above the vacuum pump's axis
when starting the pump for the first time.
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Install a check valve on the discharge pipe to prevent suction of air from
the discharge side when the pump is first started.
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It is possible to change the capacity of the vacuum pump if the pumping
liquid contains much air or the intake piping is long.
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Circulating liquid may discharge from the supply tank. This is not a malfunction
and is caused by any of the following reasons.
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1.
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Too much circulating liquid: Lower it to the level gauge position.
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2.
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Circulating liquid is removed by the air: The circulating liquid discharge
amount will decrease as the exhaust air amount decreases.
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