Tank-replenishing appts. esp. for highly volatile and dangerous liq.

摘要

The liq. is delivered through a nozzle (R) controlled by a lever (33) on the handle at the end of a hose (45), where a switch (27) sends control signals to the pump. The nozzle and a union (12) in the mouth of the tank constitute two halves of a coupling with chambers extending into their outer sections. The chambers remain liq.- and gas-tight when a valve is opened by insertion of the nozzle into the union.