SCHOTT DURAN?李比希冷凝器:

duran liebig condenser(west condenser)
with 2 standard ground joints and 2 screw-on plastic hose connections

relatively small heat exchange surface and thus relatively low cooling capacity.

typical application: product condenser for distillate separations.

SCHOTT DURAN?liebig李比希冷凝器，用于蒸馏分离。

SCHOTT DURAN?Bulb/Allihn冷凝器:

duran bulb condenser (allihn condenser)
with 2 standard ground joints and 2 screw-on plastic hose connections

The bulb condenser has a greater cooling surface than the liebig condenser and thus higher cooling capacity.

Typical application: reflux condenser for condensation and feedback of the (solvent) vapour to the reaction mixture.

SCHOTT DURAN?Bulb/Allihn冷凝器，球型冷凝管/灯泡冷凝器。

SCHOTT DURAN?Dimroth冷凝器:

DURAN Dimroth condenser
with 2 standard ground joints and 2 screw-on plastic hose connections

The Dimroth condenser comprises a coil condenser located within a tube. This condenser type has a larger heat exchange surface and thus a better cooling effect than the Liebig or Allihn condenser.

Typical applications: product and reflux condenser.

SCHOTT DURAN?Dimroth迪姆罗特冷凝器