2 Description
The BSV series pumps are compact, low noise, two-stage, oil-sealed, high-vacuum pumps designed
for reliable, long-term operation in both laboratory and industrial environments. A four-pole
three-phase motor provides direct-drive through a flexible coupling.
Features of the pump include the following:
1. High maintainability
Because of integrated cylinder structure and pin connection, maintenance and inspection can be
done easily and accurately. Daily check (oil level check, oil filling, and oil change) can be
performed from one direction.
2. Forced lubrication pump system
The stable performance can be obtained in the vicinity of the atmospheric pressure.
3. Hydraulic oil anti-sucking system
If the power fails or the pump is stopped for a long time without venting the inlet side to
atmospheric pressure, the pump oil will flow back to the cylinder, making restart difficult. This
pump is equipped with the oil anti-sucking feature to minimize the amount of oil flowing back to
the cylinder and to reduce the load, pump can restart easily.
4. Variable oil level system
This pump has a wide oil level indicating range to allow easy control of oil level. The pump is
operable if the oil level is between the two level lines of the oil level gauge during operation.
5. Gas ballast function
This proves effective when pumping condensable gas, such as water content, organic solvent and
the like.
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