NHS-35 Diffusion Pump (CAT#: AM-LE-0627-Y)

The NHS-35 Diffusion Pump is manufactured by Agilent Technologies. It is available in a variety of sizes from 2 inches and 16 inches to 35 inches. It has the characteristics of high speed, low ultimate pressure, high pumping capacity, high pre-stage pressure resistance, and low oil return.

Pumping rate, working range Pumping rate, AVS4.1 (1963): 28000 L/s air, 35000 L/s helium and hydrogen 50000 L/s air
Maximum pumping volume: 25 T L/s in the working range, 35 T L/s at 0.01 torr
Operating range: 9 x 10^-4 to less than 5 x 10^-8 torr (
Maximum pre-stage withstand voltage: no load — 0.55 Torr, full load — 0.40 Torr
Oil return rate, standard cooling cap: less than 5 x 10^-4mg/cm2/min
Warm-up time: 60 minutes
Cooling time: 180 minutes
Oil injection: 3 US gallons (11.3 L)
Electrical requirements: 3-phase, 50/60 Hz, 240/415/480 VAC
Pump power: 24000 W
Cooling water requirement: at 60-80 ℉ (15-26 °C), the pumping speed is 4 gpm (800 L/h)
Recommended pump oil: DC-704

• Five-stage stainless steel fractionation nozzle can purify pump oil
• High level of withstand voltage
• Overheating protection
• Provide a standard gauge port (NW-25) under the inlet flange
• Optional quick cooling coil
• The liquid level sight glass can quickly indicate the condition of the pump oil at any time
• The front stage baffle prevents pump oil from entering the front stage system and causing loss
• The optional halo baffle water-cooled cap reduces oil return without increasing height

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