Continuous Distillation PILODIST 250 CS 3 Stage continuously working laboratory pilot plant distillation system PILODIST 250 SD Distillation system for continuous and discontinuous (batch) operation PILODIST 250 BB Distillation system for continuous operation PILODIST 250 CA PILODIST 250 UT PILODIST 250 HD Continuously working system esp. for training students