Patent ID: 8789558

Claim:
A fluid system for supplying a device with ultrapure liquid comprising a liquid-conducting conduit from which a secondary line branches off, through which the ultrapure liquid is supplied to the device, wherein the conduit has installed therein a ring-line connection block, two inliner hoses are connected to the ring-line connection block and arranged in an insulating hose, the two inliner hoses are further connected to a device connection block to which a first coupling member with a valve seal seat is fastened, the device connection block has two holes connected to the two inliner hoses that terminate in an inlet from which a third hole extends which is led out of the coupling member, the third hole being closable by a valve body which is moved into the open position when a device connection coupling member is coupled to the first coupling member, the device connection coupling member being connected to the secondary line which supplies the device.