MD 12

Description

MD 12

The MD 12 diaphragm pump is an especially powerful pump for oil-free evacuation and pumping of non aggressive gases. The three-stage construction of the eight-head pump provides the advantageous combination of very high pumping speed and excellent ultimate vacuum. The flowpath consists of aluminum, stainless steel and carefully selected plastics (diaphragms and valves made of FKM) to permit a wide range of applications. The fabric-reinforced double diaphragms are made of highly flexible FKM for extended operating life. The special ("double star") design offers quiet, continuous-duty reliability even at high inlet pressure.

Performance features

contamination-free pumping and evacuation
very high flow rate even near ultimate vacuum
whisper quiet
powerful vacuum and high flow rates reduce process times
exceptionally long diaphragm life and maintenance-free drive system for low lifetime costs

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Technical data / Ordering data

Technical data

Technical data	Unit	MD 12
Number of heads / stages		8 / 3
Max. pumping speed at 50/60 Hz	m3/h	9.6 / 10.4
Max. pumping speed at 50/60 Hz	cfm	5.7 / 6.1
Ultimate vacuum (abs.)	mbar/torr	2 / 1.5
Ambient temperature range (operation)	°C	10 - 40
Ambient temperature range (storage)	°C	-10 - 60
Max. back pressure (abs.)	bar	1.1
Inlet connection		Small flange KF DN 25
Outlet connection		Hose nozzle DN 10 mm / silencer / G1/4"
Rated motor power	kW	0.39
Rated motor speed at 50/60 Hz	min-1	1500/1800
Degree of protection		IP 20
Dimensions (L x W x H)	mm	486 x 222 x 294
Weight	kg	23.0
Noise level at 50 Hz, typ.	dBA	52
ATEX conformity (only 230V)		II 3G IIC T3 X Internal Atm. only
Items supplied		Pump completely mounted, ready for use, with manual.
Accessories		Stainless steel tubing KF DN 25 (1000 mm: 673337)