Patent ID: 7980531
Filing Date: 2011-07-19
Classification: F16K

Abstract:
1. A device in a valve comprising: a valve housing with at least a first and a second fluid port; a closure element being arranged in the valve housing, the closure element having a sealing portion and comprising a diaphragm, the sealing portion being movable along an axis of the closure element by means of said diaphragm between an open position and a closed position of at least one of the fluid ports of the valve housing, the closure element together with the valve housing forming a flow passage in the valve housing which communicates with said fluid ports when the sealing portion leaves said closed position, a second sealing portion of the closure element adapted to come in contact with a support portion of the valve housing; and an abutment means being arranged in contact along a periphery of said second sealing portion in such manner that said second sealing portion is arranged between the support portion and the abutment means, the abutment means being arranged to transmit a force via said second sealing portion towards the support portion to provide a seal, and wherein said abutment means comprises a spring means, wherein the sealing portion of the closure element is operably connected to an actuator, the device further having a coupling device which has a locking means adapted to be connected to the valve housing, and an actuating device adapted to be connected to the coupling device to operate the actuator, wherein the abutment means is adjustably arranged in the coupling device by means of a thread bushing, and wherein the thread bushing is externally threaded and connected to a recess in the coupling device.