Description: height of the centre of the inlet pressure gauge; Name: height of inlet pressure gauge 
Description: Height of the zero or centre position of the inlet manometer, or other point as defined by the manometer calibration ; Name: Height of the inlet manometer
Description: A group of components with the same construction features and the same structure, which - due to similar manufacturing techniques - can be collated for construction approval testing and class conformity controls. They are generally allocated to a construction type. Note: in certain cases, components can be viewed from various construction type specifications as belonging to the same type and, therefore, can be collated for construction approval and class conformity controls; Name: Construction form of the housing