The lower weep hole exists to allow fluid to collect or drain out of the water pump to protect the bearing integrity. In a horizontal centrifugal pump there is little space between the bearing and the seal so fluid build-up could potentially threaten the bearing.
Definition of PETRI DISH. 1. : a small shallow dish of thin glass or plastic with a loose cover used especially for cultures in bacteriology.2. ADVERTISEMENT.Julius R. Petri â 1921 German bacteriologist.. : a small shallow dish of thin glass or plastic with a loose cover used especially for cultures in bacteriology. 2. ADVERTISEMENT. Julius R. Petri â 1921 German bacteriologist.
Petri, Petri dish-a small shallow plate used especially in microbiology for the cultivation of microorganisms on solid media. Synonym(s): Petri plate. Petri plate-Synonym(s): Petri dish. Petri test-for proteins.oogle's 'Petri Dish' Doodle honours inventor Julius Richard Petri by Asian News International. but if you were drawing a freehand family tree to depict my immediate kin, you'd have to master the illustration for a. and place it in between the parentals and my Big Bro Fred.