In the present article the pumping is done by an elastomeric element that makes the complete closure without any possibility of leakage.
Welcome to Polimeric Self-Sealed Pre-Shaped Structure (PSS2) devices and with shape recovery at the point of rest, for pumping.
(Article published in the magazine Anales de la Asocición de Ingenieros (CAI) Link to article

Leave A Comment

fifteen + twelve =

19 − = 17