A valve includes a body; a liquid flow passage defined in the body and including a liquid inlet and a liquid outlet; a vent passage defined in the body and including an air inlet an
A combined valve-regulator apparatus, for safely regulating the flow of combustible gases such as oxygen. A compressible o-ring is used to provide controllable sealed seating of the
fact that to maintain material 2 within arrangement 1 as fresh as reasonably possible, it is generally desirable to leave as little air in the arrangement 1, during storage, as easily manageable. Still referring to FIG. 1, on an upper surface 10 of arrangement 1 a vent system or arrangement...