bell cap

bell cap

[′bel ‚kap]
(chemical engineering)
A hemispherical or triangular metal casting used on distillation-column trays to force upflowing vapors to bubble through layers of downcoming liquid.
References in periodicals archive ?
Should Bell cap a memorable summer with another century, it would complete a remarkable turnaround from the start of the summer.
He was last seen wearing a black nylon stocking over his face, a Taco Bell cap, black pants and a red, green and blue pullover shirt with a Taco Bell logo on the front.