Product Description    Model BST850AFZ/BSZ Voltage/frequency  (V/Hz) 220-240V/50Hz 100v-120v/60Hz Input power(W) ≤550 Speed (r/min) ≥1350  1650 Primary vacuumKPa -93KPa Secondary vacuumKPa -98KPa Restart pressure (KPa) 0KPa Rated volume flow  (m3/h) ≥12m3/h @0KPa;  Noise dB(A) ≤62dB(A) Ambient temperature  ºC -5-40 ºC Insulation Class F Cold insulation resistance  (MΩ) ≥100MΩ Voltage resistance 1500V/50Hz 1min(No breakdown) Thermal protector Automatic reset 135±5ºC Capacitance (μF) 25μF±5%  75μF±5%  Net weight (Kg) 10.5Kg Installation Dimensions (mm) 223.2×88.9 mm(4XM6) External Dimensions (mm) 268.8*128*214.7mm Typical application Respirator (ventilator) oxygenerator Disinfectant sprayer Blood analyzer Clinical aspirator Dialysis / hemodialysis Dental vacuum … Continue reading China OEM Oil Free Piston Vacuum Pump Air Compression Pump Small Air Compressor Made in China Silent Oil Pump for Packaging Machinery 850W vacuum pump oil