
-
- PDF Downloads:
-
Product Section from Catalog
- Questions?
-
Email to USA
-
Email to Canada
-
Email to Europe
-
Email to China
-
Email to Rest of World
Molecular Drag Turbo Pumps - Adixen™ (Alcatel®) MDP Series
Features:
- Features three stages
- First stage—turbo-like stage that uses a fast-moving row of blades to strike gas molecules into the pump, ensuring maximum conductance while increasing the pump's overall pumping speed
- Second stage—includes a ribbed drum (the main operating mechanism of the pump; see the Technical Notes at the beginning of this section)
- Third stage—a stage with a dynamic seal that enables the pump to operate with high exhaust pressures
Model MDP 5011:
- Offers low pumping speed for applications that demand the fast evacuation of a small-volume chamber and an oil-free environment—for example, a small load lock
- Used as an intermediate backing pump for a high-speed turbomolecular pump
The drag pump's compression ratio (CR) acts as a multiplier for the turbo pump’s CR. For example:
- If, for H2, the turbo pump's CR is 103 and the drag pump/s CR is 103, the combination has a CR of 106. That is, if the H2 partial pressure in the drag pump’s foreline is 10-4 Torr, then the partial pressure in the chamber is 10-10 Torr.
The drag pump's ability to accept high gas throughput, its ruggedness, and resistance to damage when suddenly vented to air, give it the advantage in applications such as:
- The freeze-drying of specimens
- The pumping of sample stages in the microscopy and spectrometry of biological samples
ORDERING NOTE: Inlet screens, controllers, interconnect, and mains power cables for all MDP 5011 turbo pumps are sold separately.
Reman Pumps
(Click on a thumbnail image for more Reman Pumps information in a new window.)
Specifications Table
| Pump Model | ||
| Pumping Speed L/sec (cfm) | ||
| Compression Ratios | He: 2.0 x 104 H2: 1.0 x 103 | He: 250 H2: 50 |
| Ult. Pressure Torr (mBar) | (1 x 10-6) | (1 x 10-6) |
| Inlet Flange | ||
| Foreline Flange | ||
| Max. Foreline Press.Torr (mbar) | ||
| Backing Pump Min.Speed CFM (m3/hr) | ||
| Orientation | ||
| Cooling Method | ||
| Weight lbs (kg) |
Charts
Dimensional Drawings
Ordering Table
| Pump Model |
Inlet Flange |
Cooling Method |
PartNo | Price | Add To Cart |
|---|---|---|---|---|---|
Accessories Table
| Description | For Pump Model(s) | PartNo | Price | Add To Cart |
|---|---|---|---|---|



