The HT high throughput series is the pinnacle of our diffusion pump knowledge with technology aimed specifically at industrial users. It is designed for all light and heavy duty industrial applications.

Earliest crossover pressure

of similar sized pumps.

Excellent maximum backing line pressure

and tolerance to gas surges

Integral cold cap

for best performance and low back streaming.

Self fractionating

for low ultimate pressures.

Minimized backstreaming

for processes with high critical backing pressure and feature baffles

HT Diffusion sizes

Comparative pumping speed (N)

ISO Pumping Speed at 10⁻³ mbar

Nitrogen

Helium

Maximum Thoughput (N)

Critical backing pressure

 (With Edwards 704)

Recommended backing pump

l/s

l/s

l/s

mbar l/s

m3/h

HT10

4650

2900

4900

10

1.1

GV80, E2M80

HT16B

11580

6700

8500

18

1.4

GV80, GXS250, E2M175

HT20B

18000

8000

16000

24

1.3

GXS250, E2M175

The robust construction gives high pumping speed at high pressure. The cast and machined aluminium interior provides consistent performance, while the stainless steel body prevents corrosion and ensures process cleanliness.

These pumps are designed to give a high throughput (pressure multiplied by pumping speed) at 4x10⁻³ mbar making them ideal for industrial processes that involve large quantities of gases.

Product Features

NOOOOOTHREE PROVEN DESIGNS

they are supplied in three types: standard, manually operated (M-model pumps), standard pneumatically operated (P-model pumps) and unvalved (C-collar model pumps).

xxxxOIL FREE

ensures  clean vacuum, low power and low vibration.  the use of magnetic bearings eliminates all hydrocarbon lubricants.

VIBRATION FREE

magnetic levitation means no friction and thus extremely low vibration, in addition this remains constant and does not change as parts wear.

AUTOMATIC BALANCING SYSTEM

Edwards 5-axis pumps are able adjust the magnetic field dynamically to take out rotor imbalances. 

MAINTENANCE FREE

zero friction means no wear and thus no routine maintenance is required in normal operation.

Subscribe