blowback(redirected from blowbacks)
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A continuous stream of liquid or gas bled through air lines from instruments and to the process line being monitored; prevents process fluid from backing up and contacting the instrument.
Reverse flow of fluid through a filter medium to remove caked solids. Also known as backwash.
To enlarge, or make an enlargement of, an image.
A characteristic of a safety valve; the difference between the pressure at which it opens and the pressure at which it closes automatically, after the excess pressure has been released.