LEYBOLD MAG Series User Manual

GA05141_0702 - 09/2004
53
Installation
2.6 Connecting the purge gas
Please contact Leybold for assistance in making the decision as to which
media can be pumped with or without purge gas.
In processes which require purge gas the pump will have to be vented,
when it is switched off, through the purge gas port.
Suited are all gases,
■ which will not cause corrosion or pitting in aluminium and steel and
■ which in connection with process deposits in the pump will not cause
corrosion or sticking.
For venting and as the purge gas we recommend inert gases like nitrogen
or argon. The temperature of these gases should be between 5 °C and 80
°C , max. relative humidity should not exceed 10 ppm.
In individual cases and after consultation also dry, filtered, oil-free air or fil-
tered ambient air may be used (filter mesh < 1µm). In this case connect a
filter to the purge gas and venting valve; see Fig. 42
Change the filters after some time, at least annually.
Different venting methods are described in Chapter 3.1.
Monitor the purge gas supply continuously.
Insufficient purge gas flow can result in:
■ Process gases entering the motor and bearing area of the
MAG
■ Process gases escaping from the purge gas inlet
■ Humidity entering the pump.
Inadequate purge gas flow voids the warranty.
Warning

LEYBOLD MAG Series Specifications

General

Applications	Laboratory, medical, and industrial applications
Drive	Magnetic drive
Sealing	Hermetically sealed
Flow Rate	Varies depending on the model, ranging from a few liters per minute (LPM) to several tens of LPM. Consult specific model datasheets for precise values.
Max Pressure	Varies by model (typically up to 10 bar)
Power Supply	Typically available in various AC voltages (e.g., 115V, 230V) and frequencies (50/60 Hz)
Power Consumption	Varies depending on the model, ranging from a few watts to several hundred watts. Consult specific model datasheets for precise values.
Operating Temperature	Typically 0°C to +60°C
Weight	Varies depending on the model, ranging from a few kilograms to several kilograms. Consult specific model datasheets for precise values.
Dimensions	Varies depending on the model. Consult specific model datasheets for precise dimensions.
Materials	Stainless steel