Service Wells and Base Wells

Service wells are vacuum components that provide a transition stage between the pumping stack or system and the bell jar or chamber. Base wells integrate the features of both a baseplate and a feedthrough collar. They provide the functionality of both components while replacing one vacuum seal with a weld joint. Baseplates also provide the same transition function; however, service wells have wider bore, greater height and more feedthrough ports than baseplates. Normally, service wells do not contain feedthroughs as supplied, but instead have ports or an opening for mounting the required fluid, electrical or mechanical feedthroughs.