The installation of a non-metallic expansion joint skin is a meticulous process that needs to be carried out in strict accordance with manufacturer's guidance and industry standards. Here are the general steps and considerations for installing a non-metallic expansion joint skin:
Preparation
Check and reconcile: First, check whether the specifications, models, pressure levels, etc. of the expansion joint are consistent with the design drawings and actual requirements.
Cleaning and Protection: Clean the installation area to make sure there is no dust, grease or foreign matter. Protects the skin from welding sparks, sharp objects, and possible damage during construction.
Material inspection: Inspect the skin itself for any damage, such as scratches, piercings, or tears.
Installation Steps
Installation of internal skin cotton: If needed, first install the internal insulation material, such as insulation cotton, and fix it with insulation nails.
Tile skin: Lay the skin flat on the flange face of the metal frame, making sure there are no wrinkles or twists.
Tightening and fixing: Starting at the lower part, gradually tighten the skin up, using platens and bolts to secure it to the metal frame. Make sure the skin is tight but not overstretched to avoid damaging the material.
Interface handling: For horizontal flues, make sure the interface above the skin interface presses the interface below to prevent water from seeping in.
Seal check: Check all seams and fixing points to ensure good sealing.
Special precautions
Temperature and humidity: Ensure that the temperature and humidity of the installation environment are appropriate, and avoid installing under extreme conditions.
Avoid wrinkles: During installation, avoid wrinkling of the skin as this may affect its performance and longevity.
Interface alignment: Make sure the interface of the skin is aligned to avoid misalignment.
Cold installation: Normally, the installation should be carried out in the cold state to ensure that the expansion joint has sufficient compensation capacity in the hot state.
Follow-up inspection
Functional testing: After installation, perform pressure test and displacement test to ensure that the expansion joint can work properly.
Maintenance schedule: Develop a maintenance plan to regularly check the condition of the expansion joints, especially the integrity of the skin.
Safety Tips
During installation, wear appropriate personal protective equipment such as gloves, safety glasses, and protective clothing.
Make sure all tools and equipment are in good condition to avoid accidental injuries.
Please remember that the specific installation steps may vary from manufacturer to manufacturer, so it is important to always follow the installation manual and manufacturer's instructions that came with the product. If you encounter any uncertainty, you should consult a professional or the manufacturer's technical support department.