Scroll pumps are an excellent alternative to rotary vane pumps where oil free pumping is desirable. The innovative new XDS pumps in particular use a patented bearing shield to isolate the vacuum environment from all forms of lubricant not only making them totally dry, but also protecting the bearing from any process gases. Vapor handling is enabled by an adjustable gas ballast; this allows the range of pumps to satisfy many applications that were previously off limits to scroll pumps.
