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.
SteriWareÂ® is a range of high quality, single use, plastic products from Sampling Systems Ltd. The range includes laboratory ware as well as sample thieves for both liquids and powders. The SteriWare range includes sterile samplers and sterile scoops are well as non sterile versions.