Product Description
Edwards EXT 75DX / EXT75DX / B722-43-000 / B72243000 Hybrid Bearing Compound Vacuum Turbo Pump with ACX75 Air Cooler
Purchase the EXT 75DX / B722-43-000 Pump with Air Cooler, plus the D3971100 Controller, and SAVE BIG!
The Podule controls the electrical supply to the pump. It has no manual controls and can only be operated through the logic interface. To operate the DX pump, connect it to the customer control equipment and power supply, or use the Edwards TIC Turbo Instrument Controller or TIC Turbo Controller
Features and Benefits
- Compatible with TIC turbo and instrument controller (not included but available - see related items)
- Multiple communication modes available including parallel mode, which allows traditional control signal interface and serial mode, which allows RS232 interface
- Numerous user configurable parameters via RS232 interface including vent valve control settings, normal speed indication, stand-by running speed, programmable power settings, power consumption and pump temperature.
- Enhanced monitoring capability including pump speed, power and temperature.
Technical Data:
Inlet Flange: DN40NW / QF40
Compression ratio
N2 >1 × 1011
He 1 x 106
H2 5 x 104
Ultimate Pressure (mbar)
With RV backing pump ISO/CF <5 x 10-9 / 5 x 10-10
With diaphragm backing pump ISO/CF <5 x 10-8 / 5 x 10-9
Outlet flange DN16NW
Recommended backing pump* RV5/nXDS5i
Vent port 1/8 inch BSP
Purge port 1/8 inch BSP
Max continuous inlet pressure (light gas pumping)†
Water cooling (water at 15 °C, ambient temp at 40 °C) 2 × 10-2 mbar
Forced air cooled, 35 °C ambient 1 × 10-2 mbar
Pump rotational speed
Nominal rotational speed 90000 rpm
Standby rotational speed Variable from 49500 to 90000 rpm
(63000 rpm default)
Programmable power limit settings Variable from 50-120W (80W default)
Start time to 90% speed 110 s ‡
Analogue outputs Rotational speed;Power consumption; Pump temp; Controller temp
Cooling method: Forced air / water cooler, 24Vdc, 3W Max. (included)
Ambient air temperature for forced air cooling 5 - 35 °C
Min cooling water flow rate (water 15 °C) 15 l h-1
Water temp range 10 - 20 °C
Max inlet flange temp 100 °C
Operating attitude: Vertical and upright, through to Horizontal
Noise level at 1 metre <50 dB(A)
Max magnetic field pump can tolerate 5 mT
Recommended controller TIC100 turbo and instrument controller (not included but available)
Quiescent electrical power 10 W
* A smaller backing pump may be used depending on application. A suitable diaphragm pump with ultimate <5 mbar may also be used e.g. XDD1.
† Above this inlet pressure, rotational speed drops to below nominal.
‡ Power limit set to 80 W.
General Description:
The EXT75DX is a hybrid bearing compound turbo pump that combines the proven technology of a ceramic mechanical lower bearing, a dry permanent magnetic upper bearing and Holweck drag stage with the added convenience of an on-board 24V controller allowing parallel and serial communication compatible with TAG and TIC controllers. It has an N2 pumping speed of up to 66ls-1. A basic pump system would require an EXT75DX pump, a TAG or TIC controller, either an air or water cooling accessory and a suitable backing pump.