Regarding the net mass and control quantities of tower equipment

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The tower assembly diagram includes net mass and control mass, operating mass, water holding mass, etc. I would like to know what the difference is between the net mass and the empty mass. Thank you. The net mass of a device refers to the total weight of all its components, including both metallic and non-metallic materials. When special materials such as stainless steel, precious metals, catalysts, fillers, etc., are present in the device, they should be listed separately. Empty mass of the equipment: It is the sum of the equipment’s net mass, the mass of the insulation materials, the mass of the fireproofing materials, the mass of the pre-welded components, and the mass of the ladder platform. Operation quality: the sum of the equipment’s control capacity and the quality of the operating medium. Filling mass: The sum of the equipment’s empty mass and the filling mass. Maximum detachable component mass: such as the mass of U-tube bundles or the floating-head tube bundles in floating-head heat exchangers. Last edited by mallon on 2009-2-5 16:14]