MD 4C EX VARIO

MD 4C EX VARIO

Vacuum controller : without controller
Number of heads / stages : 4 / 3
Max. pumping speed : 3.7 m3/h
Max. pumping speed : 2.2 cfm
Ultimate vacuum (abs.) : 3 / 2.3 mbar/torr 
Ultim. vac. (abs.) with gas ballast : 10 / 7.5 mbar/torr 
Integral leakage rate : 0.1 mbar l/s
Ambient temperature range (operation) : 10 - 40 °C
Ambient temperature range (storage) : -10 - 60 °C
Max. media temperature : 40 °C
Max. back pressure (abs.) : 1.1 bar
Inlet connection : Small flange KF DN 25
Outlet connection : Small flange KF DN 16
Rated motor power : 0.25 kW
Max. operating current : 3.2 A 
Max. starting current : 150A / 2.5ms
Motor speed range : 30 - 1500 min-1
Degree of protection : IP 54
Dimensions (L x W x H) : 469 x 265 x 305  mm
Weight :  28 kg
Noise level at 50 Hz : 42 dBA 
ATEX conformity Pumping chamber (pumped gases): II 2G IIC T3 X
Environment with inert purge gas: II 2G IIB T4 X
Environment without inert purge gas: II 3G IIB T4 X
Motor: II 2G Ex d IIB T4 Gb