Reflux top part

Made of borosilicate glass 3.3 (type DURAN, PYREX, etc) based on a model, designed by the customer.
This piece contains: a condenser with a double wall and double spiral with an external double walled part as well, airtight, aluminized and with transparent, not aluminized window. Laterally there is a condenser with angle, with a piston serving as a valve, operated by an electromagnet, in order to regulate the reflux in the column. We have used conical connectors with a RODAVISS system. They are used for the improvement of the sealing by the setup and to avoid glass breakage, when the connectors are disassembled.