HT20B
Type:
Pumps
Manufacturer:
Edwards
Pumping speed:
135 m3h-1
Vacuum depth:
1.3 mbar
Category:
Diffusion pump
| Comparative pumping speed | 18000 ls-1 |
| ISO pumping speed† | |
| Nitrogen | 8000 ls-1 |
| Helium | 16000 ls-1 |
| Maximum throughput (nitrogen) | 24 mbar ls-1 |
| 18 Torr ls-1 | |
| Critical backing pressure (DC704EU) | 1,3 mbar |
| 1 Torr | |
| Minimum backing pump displacement for maximum throughput | 135 m3h-1 |
| 80 ft3min-1 | |
| Recommended backing pump‡ | GV80, E2M80, E2M175 |
| Recommended fluid | DC704EU |
| Fluid charge (dry) | 3600 ml / 3,8 qt |
| Inlet/backing connection | ANSI20/ANSI4 or |
| ISO630/ISO160 | |
| Water connection | 3/4 inch NPT female |
| Heater power | 12,6 kW / 16,9 hp |
| Warm up time | 60 min |
| Minimum cooling water flow at 25°C | 960 l h-1 / 4,2 US gal min-1 |
| Pressure drop across cooling water supply | 1,2 bar / 17,4 psi |
| Weight | 275 kg / 605 lbs |
| † ISO speed and throughout data obtained with total pressure measurement. Partial pressure readings typically increase data by ~30%. ISO speed measurements are typically 10% less than AVS measurements for the same pump. | |
| ‡ These are given for guidance, please contact Edwards for a recommendation of pump combinations best suited to your application. | |
Baltic Condition