Ask a research-administration question
Answers are drawn from CASRAI and the rest of the CASRAI corpus, with a link to every source.
Answers are AI-generated from CASRAI’s own published pages and can be wrong, so check the linked sources before relying on one; your question is logged without personal data — never sold, never used to train a third-party model — to show us what CASRAI is missing, so please do not type personal or confidential details. How we use this
CASRAI is the reference for research administration — bookmark it for the next question.

SKU MD-4C-NT
Vacuubrand
Vacuubrand MD 4C NT 2.2CFM Chemistry Diaphragm Pump 110V
in Vacuum Pumps
$5,600.00
In stockVacuubrand MD 4C NT three-stage chemistry diaphragm pump, 2.2 CFM at 110 V, with all wetted parts in fluoroplastics and PTFE sandwich diaphragms.
Buying through procurement?
Generate a formal quotation for 1 × this item, plus our W-9 — everything your finance department needs to raise a purchase order.
Ordering several items? Add them to your cart, then create one quote for the whole cart.
Description
Vacuubrand MD 4C NT
Three-stage chemistry-design diaphragm pumps are an excellent solution for continuous, oil-free pumping of corrosive gases and vapors and meet even challenging requirements. The three-stage design provides the advantageous combination of high pumping speed and very low ultimate vacuum. All parts of the MD 4C NT in contact with pumped media are made of chemically resistant fluoroplastics. Well-proven PTFE sandwich diaphragms provide increased reliability and extended operating life. Due to the gas ballast valve and its very good ultimate vacuum (even with gas ballast) the MD 4C NT is also suitable for pumping condensable vapors of high-boiling solvents. The NT-series features further improved performance data, easy service and superior vapor tolerance. Three-stage chemistry diaphragm pumps are an excellent choice for applications with corrosive gases and vapors with high vacuum requirements. Typical applications are parallel and rotary evaporators, concentrators, drying ovens and many other laboratory applications. The MD 4C NT has an outstanding performance for pumping large amounts of vapor, e.g., out of drying ovens and gel dryers. This powerful 110v pump is at the heart of a complete family of well-proven and reliable vacuum systems and pumping units for larger lab applications.
Performance Features
Outstanding chemical resistance and superior vapor tolerance
Exceptionally high performance even at low vacuum
Excellent ultimate vacuum even with gas ballast
Whisper quiet and very low vibration
Long diaphragm life, maintenance-free drive system
Technical Data
MD 4C NT Specifications
Max. Pumping Speed 50 Hz
3.4 m3/h
Max. Pumping Speed 60 Hz
2.2 cfm
Ultimate Vacuum
1.5 mbar / 1.1 torr
Ultimate Vacuum with Gas Ballast
3 mbar / 2.2 torr
Number Of Heads
4
Number Of Stages
3
Ambient Temperature (Operation)
10°C to 40°C
Ambient Temperature (Storage)
-10°C to 60°C
Max. Back Pressure (Abs.)
1.1 bar
Anschluss Saugseitig
Hose Nozzle DN 8-10 mm
Outlet Connection
Hose Nozzle DN 8-10 mm
Rated Motor Power
0.25 kW
Rated Motor Speed at 50/60 Hz
1500/1800 min-1
Protection Class
IP 40
Dimensions (L x W x H)
328mm x 243mm x 198mm
Weight
14.3 kg
Noise Level at 50 Hz, typ.
45 dBA
ATEX Conformity
II 3/- G Ex h IIC T3 Gc X Internal Atm. Only
NRTL Certification
Yes
Items Supplied
Pump completely mounted, ready for use, with manual
Rated Mains Voltage Range 1
115 V
Mains Frequency 1
50-60 Hz
MD 4C NT – Pumping Speed Graph at 50 Hz
MD 4C NT – Pump Down Graph at 50 Hz (10L volume)
MD 4C NT – Pumping Speed Graph at 60 Hz
MD 4C NT – Pump Down Graph at 60 Hz (10L volume)
-Technical data are subject to change without notice-
MD 4C NT – Dimension Sheet
Frequently asked questions
Why a three-stage design?+
Vacuubrand specify that three stages combine high pumping speed with very low ultimate vacuum.
What are the wetted materials?+
All parts in contact with the pumped media are chemically resistant fluoroplastics, with PTFE sandwich diaphragms.
What is it intended for?+
Continuous, oil-free pumping of corrosive gases and vapours.
What is the flow rate and supply voltage?+
2.2 CFM at 110 V.
What is the part number?+
MD-4C-NT.
Related products

Edwards Dry Scroll Pump nXDS20i - 16.5 Cfm
Edwards nXDS20i oil-free dry scroll pump, 16.5 cfm, with DN 25 ISO-KF ports, 52 dB(A) operation and single-phase 100–240 V power. Standard, C or R variant.

Edwards Dry Scroll Pump nXDS15i - 10cfm
Edwards nXDS15i oil-free dry scroll pump, 10 cfm, with 52 dB(A) operation and single-phase 100–127 / 200–240 V power. Standard, C or R variant.









