300676782_002_C0
6996 0229 87 Issue A – 05/2017 – © Leybold 12
Electric motor
Electric motors are 3 phase ‘multi voltage/multi frequency’. For 60Hz supplies they are cUL/UL
approved. The main motor options are:
200/230V 50/60Hz
400V 50Hz
380V 60Hz
500V 50Hz and 575 60Hz
460V 60Hz
230/460V 60Hz (Optional)
The motors are suited to operate with Variable Speed Drive to have complete controllability and to
reduce power consumption. This efficiency improvement leads to power reduction and consequently a
lower carbon footprint.
Following standard features provided with the pump:
Vacuum relief valve (In case of vacuum pump)
The relief valve is designed to open at a predetermined set pressure to protect the pump from
damage.
When the vacuum level is exceeded, the relief valve opens and allows air to enter the pumping
chamber. This has the effect of internal cooling.
Intake filter (In case of over-pressure pump)
Intake filter prevents foreign material from entering the pump. Abrasive, bulky material will damage
the pump’s internal parts and could cause catastrophic failure.
Silencer (Extra inlet silencer in case of over-pressure pump)
The pump inlet and discharge can be noisy. The pump is equipped with an outlet silencer.
For the over-pressure pump an extra inlet silencer is installed.
Pressure Safety valve (In case of over-pressure pump)
A pressure safety valve automatically releases air from a pump, when the pressure exceeds preset
limits.
The following features are available as an option:
Humid Option (In case of vacuum pump)
‘Standard’ and ‘Humid’ versions are available dependent upon the harshness of the application.
The harsh applications, generally wet application need more protection for the pump. ‘Humid’
version contains advanced corrosion resistant wetted parts.
In addition to this, pump is provided with inlet liquid separator, condensate drain facility and
corrosion resistive coating to the exhaust to withstand the harsh applications.
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