WL 210 Flow Boiling Demonstration
1 cooling water connection,  2 evaporator pipe,  3 shut off valve,  4 water jet vacuum pump,  5 collector with manometer, excess pressure valve and bleeding,  6 condenser,  7 hot water expansion vessel,  8 thermometer for hot water feed,  9 switch for heater and pump,  10 circulating pump,  11 electrical heater with thermostat