| 摘要 |
An apparatus and method for discharging vapocoolants in stream or mist form includes the use of selected fluoroelastomers for valve parts (12) to regulate discharge. The fluoroelastomers provide long-term stability to the vapocoolants to enable superior shelf life without minimal loss or contamination of the vapocoolant. In addition, a filter (98) is provided to remove contaminants from vapocoolant prior to passage through the nozzle opening.
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