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Varian DS302 |
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特点
工作压力低至 10-3 mbar
工作温度低
低压下返流最小
在 10-2 mbar 低压范围内具有良好的抽气速率和气镇效果
技术数据
Free air displacement 60 Hz: 285 l/min (10 cfm) 50 Hz: 237 l/min (14.2 m3/h)
Pumping speed* 60 Hz: 8.2 cfm 50 Hz: 11.6 m3/h
Ultimate partial pressure* 10-4 mbar
Ultimate total pressure* 2 x 10-3 mbar
Ultimate total pressure with gas ballast* 2 x 10-2 mbar
Water vapor tolerance 20 mbar
Water vapor capacity 160 g/h
Oil capacity min/max 0.25/0.6 l
Motor rating 1ph 60 Hz: 0.55 kW 50 Hz: 0.45 kW
Nominal rotation speed 60 Hz: 1800 rpm 50 Hz: 1500 rpm
Weight 25 kg (55 lbs)
Inlet flange 25KF DN
Exhaust flange 25KF DN
