Woulff bottles, DURAN®

- With reinforced walls, for work under vacuum
- Plastic coating to act as a splinter and implosion protection
- A glass insert is fitted with removable PP tubing connections Ø 11 mm
- Vent valve head
- Analogue pressure gauge with 2 scale ranges (1000 to 0mbar, 760mm to 0mm Hg)
LWW 20 water flow monitor

With 230 V/60 Hz/16 A/3,2 kW (max.), on / off relay and coolant water sensor made of 3.3 borosilicate glass with dual platinum electrode. Switches connected apparatus (e.g. a heater for a solvent distillation system) off permanently if it detects a shortage of cooling water. An optical and acoustic alarm signal is emitted simultaneously. The relay is connected to the power supply cable of the electrical device and the sensor is connected into the outlet line of the cooling water (10 mm bore tubing connectors are provided). Switch cable length: 5 metres....
Micro-distillation system

Complete Micro-distillation unit consisting of a Vigreux column with vacuum jacket (effective length 150 mm) and attached Liebig condenser (jacket length approx. 160 mm), stopper with vacuum attachment, 2 x NS 14.5 cone and 1 x NS 14.5 socket joint connections, permanently fixed, plastic (PP) tubing connectors, 100 ml evaporating flask, condensate distributor with 4 x 10 ml receiving flasks, 0 to +250 °C thermometer, heating bath trough with thick Duran walls and flat-ground and polished base (capacity approx. 600 ml), stand and mountings, magnetic hotplate / stirrer, Pt1000 sensor (to control the bath temperature)....