功能

• It is a receiver with a scale and PTFE cock which is convenient for fractionating into a receiving flask connected to the lower part.
• Reduced-pressure fractional distillation and fractional distillate can flow smoothly.
• One of the two pressure control cocks is a caudate nozzle, so it is possible to remove the receptacle connected to the lower part, or to efficiently reduce the pressure and reflux by attaching it to the upper part.