Abstract: A coupling system for selectively connecting an associated fluid inlet (I) with an associated fluid outlet includes an essentially hollow plug (90) having a shape corresponding to one of a plurality of plug types (90A, 90B, 90C) and that is in fluid communication with the associated fluid outlet. A coupler (1) is in fluid communication with the associated fluid inlet (I). The coupler (1) includes a receiving region (R) adapted for selective connection with a plug (90) having a shape corresponding to one of the plurality of plug types (90A, 90B, 90C). The coupler also has a lock (L) that selectively locks the plug (90) into the receiving region (R). The coupler additionally has a valve (V) that is movable between an open position defining an operative connection between the fluid inlet (I) and the fluid outlet whereby fluid flow (F) can pass from the inlet to the outlet, and a closed position defining an operative disconnection of the fluid inlet (I) from the fluid outlet.

Abstract: A coupling system for selectively connecting an associated fluid inlet (I) with an associated fluid outlet includes an essentially hollow plug (90) having a shape corresponding to one of a plurality of plug types (90A, 90B, 90C) and that is in fluid communication with the associated fluid outlet. A coupler (1) is in fluid communication with the associated fluid inlet (I). The coupler (1) includes a receiving region (R) adapted for selective connection with a plug (P, 90) having a shape corresponding to one of the plurality of plug types (90A, 90B, 90C). The coupler also has a lock (L) that selectively locks the plug (90) into the receiving region (R). The coupler additionally has a valve (V) that is movable between an open position defining an operative connection between the fluid inlet (I) and the fluid outlet whereby fluid flow (F) can pass from the inlet to the outlet, and a closed position defining an operative disconnection of the fluid inlet (I) from the fluid outlet.

Abstract: An improved bellows valve is disclosed having a relatively long bellows attached at one end to the valve control stem and at its other end to a recessed bellows mounting in the valve bonnet. The recessed attachment permits the use of a relatively long bellows with a valve bonnet of minimal size and mass and permits a wide valve opening with a relatively small valve port. Such a small valve port requires a low closing force for the stem and the use of a wide opening resists clogging. An anti-torque member connected between the valve bonnet and the valve stem prevents stem rotation to isolate the bellows from undesirble rotation during the axial stem and bellows movement.