Laboratory vacuum pump MD 12 NT

diaphragmdrymulti-stage

Overview

• Contamination-free pumping and evacuation
• High pumping speed even near ultimate vacuum
• Very low noise operation
• Reduced process times
• Long diaphragm life and maintenance-free drive for low lifecycle costs

Product description
The MD 12 NT diaphragm pump is a powerful oil-free pump for evacuation and pumping of non-aggressive gases. Its three-stage design with eight pumping heads combines high pumping speed with an excellent ultimate vacuum. The gas flow path is made of aluminium, stainless steel and selected plastics to suit a wide range of applications. Fabric-reinforced double diaphragms made of flexible FKM ensure extended service life and high vacuum performance. Eight-head NT pumps feature quiet operation and smooth, easy-to-clean external surfaces. As with all VACUUBRAND diaphragm pumps, the MD 12 NT operates completely oil-free and has no sliding components in the gas path; in normal operation it runs abrasion-free, minimising particulate contamination compared with scroll or piston pumps.

Technical data and graphs
Max. pumping speed 50 Hz: 12.1 m3/h
Max. pumping speed 60 Hz: 7.1 cfm
Ultimate vacuum: 2 mbar / 1.5 torr
Number of heads: 8
Number of stages: 3
Lower ambient temperature (operation): 10 °C
Upper ambient temperature (operation): 40 °C
Lower ambient temperature (storage): -10 °C
Upper ambient temperature (storage): 60 °C
Max. back pressure (abs.): 1.1 bar
Inlet connection: small flange KF DN 25
Outlet connection: G1/2"
Rated motor power: 0.53 kW
Rated motor speed at 50/60 Hz: 1650 min-1
Protection class IEC 60529: IP 40
Dimension L x B x H: 554 x 260 x 359 mm
Weight: 30.2 kg
Noise (sound pressure level) in dBA at 50 Hz: 50 dBA
ATEX conformity: II 3/- G Ex h IIC T3 Gc X (Internal Atmosphere only)
NRTL certification: No
Items supplied: Pump completely mounted, ready for use, silencer, manual
Rated mains voltage range 1: 200-230 V
Mains frequency 1: 50-60 Hz

Features / technical specifications

• Model: MD 12 NT
• Technology: oil-free diaphragm pump, dry compressing
• Configuration: 8 heads, 3 stages
• Pumping speed (50 Hz): 12.1 m3/h
• Pumping speed (60 Hz): 7.1 cfm
• Ultimate vacuum: 2 mbar (1.5 torr)
• Diaphragms/valves: FKM, fabric-reinforced double diaphragms
• Inlet connection: KF DN 25
• Outlet connection: G1/2"
• Rated motor power: 0.53 kW, 200-230 V, 50-60 Hz
• Rated speed: 1650 min-1
• Protection class: IP 40 (IEC 60529)
• Dimensions (L x B x H): 554 x 260 x 359 mm
• Weight: 30.2 kg
• Noise level (50 Hz): 50 dBA
• Max. back pressure (abs.): 1.1 bar
• Operating temperature range: 10 °C to 40 °C
• Storage temperature range: -10 °C to 60 °C
• ATEX: II 3/- G Ex h IIC T3 Gc X (internal atmosphere only)
• Items supplied: Pump assembled and ready for use, silencer, manual