Abstract: A tap for removing liquid from a container has a sleeve (10) made of plastic, in which a piston (12) is guided, and which sleeve has a passage opening (28) for the liquid. A hood that can be set onto the sleeve (10) in front of the passage opening (28), so that it covers the passage opening (28), serves as a foam throttle. The hood encloses a labyrinth channel (36), together with the sleeve, which channel is open at one end, towards the interior of the container, and ends in the passage opening (28) at the other end.

Abstract: The closure has a bung bushing (10) of elastic material which fits sealingly into the charging hole of the container. The bung bushing (10) has a central opening. A bung plug (18) is seated sealingly in the central opening. The bung plug (18) can be pushed out in the direction of the inside of the container. It is the valve member of a manually operable pressure-compensating valve.

Abstract: A tap for removing liquid from a container has a sleeve (10) made of plastic, in which a piston (12) is guided, and which sleeve has a passage opening (28) for the liquid. A hood that can be set onto the sleeve (10) in front of the passage opening (28), so that it covers the passage opening (28), serves as a foam throttle. The hood encloses a labyrinth channel (36), together with the sleeve, which channel is open at one end, towards the interior of the container, and ends in the passage opening (28) at the other end.

Abstract: The tap has a tap bushing (10) with a passage opening (34) for the liquid to be discharged. A piston (12) is guided so as to move axially within the tap bushing (10) and has an entry opening (36) and an exit opening (38) for the liquid. The piston (12) closes off the passage opening (34) in a locked position when it is moved in. The entry opening (36) of the piston (12) is in connection with the passage opening (34) in an extended position of the piston (12). A locking bushing (14) that is guided to rotate on the piston (12) is seated in the piston (12), which locking bushing (14) optionally closes off the exit opening (38) or brings it into connection with a passage opening (44) of the locking bushing (14).

Abstract: The tap has a tap bushing (10) with a passage opening (34) for the liquid to be discharged. A piston (12) is guided so as to move axially within the tap bushing (10) and has an entry opening (36) and an exit opening (38) for the liquid. The piston (12) closes off the passage opening (34) in a locked position when it is moved in. The entry opening (36) of the piston (12) is in connection with the passage opening (34) in an extended position of the piston (12). A locking bushing (14) that is guided to rotate on the piston (12) is seated in the piston (12), which locking bushing (14) optionally closes off the exit opening (38) or brings it into connection with a passage opening (44) of the locking bushing (14).

Abstract: The closure has a bung-type socket (10) of soft elastic material with a flange-like outer bearing portion (12), a circumferential sealing portion (16) sealingly receiving the rim of the hole, and a circumferential snap-action portion (18) engaging the inside of the rim of the hole from behind. In the sealing portion (16) and the snap-action portion (18) of the bung-type socket (10) there is embedded a coaxial reinforcing ring (20) of hard plastic, which is radially rippled over the circumference and thereby is covered by the soft-elastic material in thickness varying over the circumference. The bung-type socket (10) has a central orifice (24), in which a manually adjustable valve element (26) of the pressure-compensating valve occupies a sealing closed position and a pressure-compensating position.

Abstract: The closure has a bung-type socket (10) of elastic material which fits sealingly into the filling hole and is provided with a central orifice (18). The valve element (20) of the pressure-compensating valve occupies in the central orifice a clearly defined closed position and a clearly defined pressure-compensating position, between which it can be turned within limits defined by stops. The bung-type socket (10) has a lateral pressure-compensating duct (42), the outside end of which is disposed above the liquid level in the completely filled container. The valve element (20) in pressure-compensating position opens up a flow path from the inside end of the pressure-compensating duct (42) to the upper side of the bung-type socket (10), while in closed position it shuts off the path on the inside, covers it on the outside and seals it tightly on both inside and outside.

Abstract: A tap is provided for withdrawing fluid from a container comprising an outer tube, which can be fitted in an opening of the container in sealing engagement and in which an inner tube is received in sliding and sealing engagement, an inlet opening arranged in the outer tube, and an inlet opening arranged in the inner tube which communicates with an outlet opening in the inner tube that can be transferred by a corresponding movement of the inner tube from a closed position, in which the inner tube is completely inserted in the outer tube and in which the inlet openings of the outer tube and the inner tube do not overlap, to an open position in which the inlet openings of the outer tube and the inner tube are at least partially aligned one with the other.