NB/AP

The device Device A device is a pipe component that influences the media flow by opening, closing, or partially shutting off the flow channel or by dividing or mixing the media flow. consists of the bottom plate Bottom plate A bottom plate forms the foundation inside a tank for the installation of tank accessories, e. g. suction units or tank valves. (1) which has to be welded onto the vessel Vessel Container or structural envelope in which materials are processed, treated or stored. bottom; a nozzle (2) which has to be welded to the discharge line; the flanged fast-acting valve (3) with valve piston (4) and release valve cone (5); and the complete pneumatic actuating device (6) which is mounted onto the roof of the tank. The required tightness is ensured by a lapped metallic valve pallet Valve pallet Valve pallet is the generic term for the assembly that rests on the valve seat. and relief valve cone. The quick-release valve (3) and the actuating system (6) are connected by an actuator cable (7). An additional emergency cable enables the quick-release valve to be opened if the main actuator rope is damaged.

The valve design is independent of the nominal size Nominal size The nominal size is an alphanumeric designation of size for components in a piping system, used for reference purposes, comprising the letters DN followed by a dimensionless integer that is indirectly related to the physical size of the bore or outside diameter of the connections, expessed in millimeters. . The nominal size DN 1 is determined by the nominal size of discharge line. Material selection depends on the substance and the operating temperature Operating temperature Temperature reached when the equipment is operating under design conditions. .