Administration set including burette with pivotable air valve

摘要: An administration set including a burette with an air valve communicating the chamber. The comprises stationary port extending from top portion of chamber fitting closing except for small passageway defined by fitting. A pivotable closure overlies and is pivotally connected therewith. defines opening communication when pivoted to predetermined open position. are segregated not in filter member received within directly underlies passageway.