Maintenance Tips & Tricks – 1999 – #13

By Plant Engineering Staff September 1, 1999

Finding vacuum leaks

Problem : Typical vacuum petcocks are factory greased. After several years, the grease dries out and they leak. Finding leaks in vacuum petcocks in lab or processing areas is difficult.

Solution : Place a rubber pipette bulb over each petcock inlet. If the petcock is leaking, the pipette bulb collapses within seconds.

Contributor : Michael J. Bandy, Eli Lilly & Co., Indianapolis, IN; 317-276-9165

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