The nHT series offers superior vacuum performance. The pumps have been designed for optimum heat transfer into the oil resulting in faster heat up times with a significant reduction in energy consumption.
The optimised pumping speed and stable high throughput is ideal for the critical Coating, Metallurgy, Heat Treatment and R & D applications.
The smart temperature control and on board sensors ensure minimum load with longer lifetime for heaters and oil. The non-wear components and easy-change heater cartridges ensure extended intervals between service and maintenance.
The Energy Efficiency Controller enables ease of use and operating convenience along with effective monitoring with USB and Ethernet interface. The innovative heating design provides a faster warm up time and enables up to 30% energy savings.
| NHT20 | NHT35 | ||||
| ANSI | ISO | ANSI | ISO | ||
| Inlet connection | 20" ANSI | 60 ISO-K | 35" ANSI | 1000 ISO-K | |
| Backing connection | 4" ANSI | 160 ISO-K | 6" ANSI | 200 ISO-K | |
| Pumping speed* Nitrogen<10-4mbar |
l/s | 10,000 | 30,000 | ||
| Pumping speed Argon <10-4 mbar |
l/s | 9,000 | 26,000 | ||
| Pumping speed Helium <10-4 mbar |
l/s | 17,000 | 42,000 | ||
| Gas Throughput | mbar l/s | 18 | 33 | ||
| Operating range | mbar | <10-2 - 5 x 10-7 | < 10-2 - 5 x 10-7 | ||
| Ultimate pressure (Edwards 704) | mbar | < 5 x 10-7 | < 5 x 10-7 | ||
| Critical hacking pressure (Edwards 704) | mbar | 5 x 10-1 | 5 x 10-1 | ||
| Heating power | kW | 10.8 | 21.6 | ||
| Heating cartridges | qty | 9 | 18 | ||
| Warm-up period | min | < 25 | < 30 | ||
| Weight | kg | 210 | 720 | ||
| Recommended oil | Edwards 704 | Edwards 704 | |||
| Oil | l | 5.5-7.0 | 9.0 - 11.00 | ||
| Minimum backing pump displacement for maximum throughput | m3h-1 | 135 | 250 | ||
| Recommended backing pump | GXS160, E2M175 | GXS250, E2M275 | |||
