Electric pump MD 12C NT

diaphragmfor gasmulti-stage

Overview

• Outstanding chemical resistance and high tolerance to condensable vapors
• Shorter process times due to high pumping speed even near ultimate vacuum
• Very low vibration and low noise (50 dBA at 50 Hz)
• Good ultimate vacuum even with gas ballast open for condensate purge
• Long diaphragm lifetime; maintenance-free drive

Description
Three-stage chemistry diaphragm pump MD 12C NT for continuous, oil-free evacuation of corrosive gases and vapors. The eight-head, three-stage design provides high pumping speed combined with a low ultimate vacuum. All internal parts contacting the pumped media are made of chemically resistant fluoroplastics; PTFE sandwich diaphragms increase reliability and service life. Integrated gas ballast valve allows pumping of easily condensable vapors while maintaining good ultimate vacuum. Upgrade kits (inlet separator AK and exhaust vapor condenser EK) enable adaptation to changing process requirements. The NT eight-head design offers quiet operation and smooth, easy-to-clean surfaces.

Technical data and graphs
Max. pumping speed 50 Hz: 12 m3/h
Max. pumping speed 60 Hz: 7.0 cfm
Ultimate vacuum: 2 mbar / 1.5 torr
Ultimate vacuum with gas ballast: 4 mbar / 3 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: Hose nozzle DN 15 mm
Rated motor power: 0.53 kW
Rated motor speed at 50/60 Hz: 1650 min-1
Protection class IEC 60529: IP 40
Dimensions (L x B x H): 533 x 260 x 359 mm
Weight: 28.1 kg
Noise (sound pressure level) 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, with manual
Rated mains voltage range 1: 200-230 V
Mains frequency 1: 50-60 Hz

Characteristics / technical specifications

• Model: MD 12C NT
• Pump type: Three-stage chemistry diaphragm pump, eight-head
• Oil-free design (100% oil-free)
• Membrane technology: PTFE sandwich diaphragms
• Materials in contact with media: chemically resistant fluoroplastics
• Intended use: pumping corrosive gases and vapors, condensable vapors, high-boiling solvents
• Options: Inlet separator (AK), exhaust vapor condenser (EK)
• Max. back pressure (abs.): 1.1 bar
• Rated motor power: 0.53 kW, 1650 min-1 (50/60 Hz)
• Protection class: IP 40
• Dimensions (L x B x H): 533 x 260 x 359 mm
• Weight: 28.1 kg
• Noise level (50 Hz): 50 dBA