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Maximum initial pressure rise with no gas ballast
flow
Suck‑back protection
Leak tightness
Maximum displacement
Sound pressure, measured at ultimate vacuum
1 metre from the end of the pump to ISO 3744
and ISO 4871
Vibration: measured at the inlet port (ISO 3744) Class 1C...< 4.5 mm s-
*Use at higher inlet pressure speeds up the tip seal wear.
†Enhanced version is not limited for maximum chamber volume or number of cycles per
hour.
3.2.1 Pumping media
WARNING:
Risk of fire. Do not use this pump to pump pyrophoric materials or dust.
The pump is designed to pump the following gases:
▪
Air
▪
Carbon dioxide
▪
Helium
▪
Carbon monoxide
▪
Nitrogen
▪
Argon
▪
Oxygen (O
The pump can be used to pump water vapour. Caution must be taken to ensure that
vapour does not condense inside the pump. Refer to
how to prevent condensation of water vapour in the pump.
If pumping a vapour or gas not in the list above or if its temperature is higher than 40 °C,
contact us for advice.
3.2.2 Performance characteristics
The position of the gas ballast control defines the performance characteristics of the
pump.
Note:
Does not apply to No Gas Ballast variants
A73001880_P
A73001880_P - Technical data
)
2
Page 13
5 mbar l
By exhaust valve
-6
-1
< 1 x 10
mbar l s
3
44 m
/hr
57 dB (A)
1
Gas ballast control
on page 23 on
05/2022 - ©Edwards Limited
(rms radial)
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