1.2 Description
The ESDP12 and ESDP30 Scroll Pumps are compact, reliable vacuum pumps for use on clean
dry processes. The pumps are
not
suitable for use with explosive, flammable, toxic or corrosive
substances, or substances which contain particulates, powders or vapour.
The body of the pump has stationary scrolls and an orbiting scroll. The orbiting scroll is driven
by the electric pump-motor through an eccentric cam on the motor drive shaft. The movement
of the orbiting scroll, meshed with the stationary scrolls, forms successive crescent shaped
volumes in the pump.
Gas which enters the pump through the inlet is compressed by the movement of the orbiting
scroll and swept towards the centre of the stationary scrolls. The compressed gas enters the
exhaust-port near the centre of the stationary scrolls and is exhausted from the pump through
the outlet.
The inlet of the pump has an inlet screen which prevents the entry of debris into the pump.
The pump is air-cooled and has an electric motor and an hours counter which operates when
the electrical supply to the pump is switched on.
2 ESDP12 and ESDP30 Scroll Pumps
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