Abstract: The present invention provides a gas transfer apparatus designed for enhanced purging of a pigtail conduit and a process for effecting such purging. The apparatus comprises a surge chamber having a first end, a body and a second end, the first end in communication with the pigtail conduit. A body section of the surge chamber has a cross-section larger than the cross-section of the pigtail conduit. The second end is in communication with a vessel containing a gas source. The apparatus includes a purge gas source for delivery of a purge gas to the pigtail conduit whereby during an alternating cycle of pressurization of the pigtail conduit with the purge gas and depressurization, impurities can be removed from within the pigtail conduit.

Abstract: The present invention is an apparatus for containing and dispensing a high purity fluid comprising an outer vessel capable of containing a quantity of high purity fluid in its interior; an outlet associated with the outer vessel for dispensing the high purity fluid; a valve capable of controlling high purity fluid flow out of the outer vessel through the outlet; an inner vessel at least partly situated in the outer vessel and communicating with the outlet and an inlet which communicates with the interior of the outer vessel; a purification media contained within the inner vessel for purifying the high purity fluid of undesired components; and fluid flow control device which prevents high purity fluid from flowing from the inner vessel to the interior of the outer vessel.