I would like to ask: when installing static equipment, metal shims are usually placed at the bottom. Are there any specifications regarding these shims?

Regarding the specification requirements for the lower metal gaskets used during the installation of static equipment, the following aspects generally need to be met: 1. Material selection: The material for the gaskets should be one that can withstand the weight of the equipment, is resistant to corrosion, and possesses sufficient hardness and wear resistance, such as stainless steel or carbon steel. 2. Dimensional accuracy: The shims should be manufactured in accordance with the design requirements, and their dimensional accuracy must meet the specifications. 3. Surface flatness: The surface of the backing plate should be flat; there should be no unevenness or bending deformations, and its roughness must meet the specified requirements. 4. Fixing method: There should be a certain gap between the shimming plate and the equipment, and a reliable fixing method should be used to ensure a tight connection, so as to prevent loosening or shaking. In summary, when installing stationary equipment, shims are also an important component; they must be designed, manufactured, and installed in accordance with regulatory requirements to ensure the safe and stable operation of the equipment. .

GB50461, SHT3532, and SHT3542 all have relevant provisions

No provisions regarding the material of the gasket can be found in national standards and petrochemical regulations; there must be specific requirements for this, right? If so, where is the source?

The material in contact with the device base plate should be the same. The pouring of the base plate and wedge-shaped adjustment plate is selected based on the environment.

Agree with what was said on floor 5; it’s the same material as the equipment

Are ventilation holes needed on the pad? Or leave a section unwelded. Can a fillet weld be welded in a circle to achieve complete sealing?