9. After the keel is installed, concealed pipes, concealed wires and accessories shall be installed according to the requirements of water and electricity design
Holes shall be pre opened on relevant keels according to the nozzle position and size, but the diameter of the opening shall not be greater than 3/5 of the keel width
10. Before installing the plate, check the surface flatness, elevation perpendicularity and stability of the keel framework
Keel is a kind of building material used to support the shape and fixed structure. The electric butterfly valve shall be equipped with appropriate equipment support when used
The selection of model and quantity shall ensure that it can not only bear the dynamic load of equipment, but also maintain a small vibration transmission coefficient (ratio of transmission force to interference force)
When designing and applying the electric butterfly valve, the following factors must be considered: 1. It can provide the required damping amount; 2. Be able to bear the specified load; 3. Be able to withstand the change of temperature and other environmental conditions (temperature, corrosive fluid, etc.); 4. Vibration damping characteristics; 5. Meet the weight and volume requirements of electric butterfly valves for equipment using electric butterfly valves