How to install a direct buried compensator? The installation of a directly buried compensator is a professional process that needs to be carried out in accordance with the manufacturer's guidance and engineering design requirements. The following are the general steps and considerations for direct burial compensator installation:
PREPARATION STAGE
Inspection and Acceptance：
Before installation, check whether the model and specifications of the compensator match the design drawings.
Confirm that there is no obvious damage to the appearance of the compensator, such as pressure craters, rust and other defects.
Environmental preparation：
Ensure that the installation site is clean and free of dust contamination.
Check that the trench meets the design depth and flatness requirements.
Materials & Tools：
Prepare the necessary installation tools, such as lifting equipment, welding equipment, measuring tools, etc.
Installation Steps
Positioning and placement：
Determine the position of the compensator according to the design drawings, ensuring that it is between two fixed points.
Gently place the compensator into the pipe trench to avoid collisions.
Connecting pipe：
Align the compensator with the adjacent pipe, using welding or flanged connections.
Pay attention to the media flow direction and ensure that the arrow direction of the unidirectional compensator coincides with the media flow direction.
Pre-stretched or pre-compressed：
Depending on the ambient and medium temperature, the compensator may need to be pre-stretched or pre-compressed to reserve sufficient compensation space.
This step should follow the manufacturer's instruction manual.
Fixing and adjusting：
Fixed brackets are installed to ensure the stability of the compensator in the ductwork.
Adjust the position of the compensator to ensure it is coaxial with the pipe and avoid eccentricity.
Welding & Inspection：
Weld the joints to ensure the quality of the weld.
Perform hydraulic tests as required to check for leaks.
Secondary fastening：
After 24 hours of running, tighten the bolts at both ends of the packing chamber again to ensure a seal.
Insulation and backfill：
Insulate the compensator and its surrounding pipelines to ensure that the insulation layer is continuous and free of damage.
Use sand to fill the surroundings of the pipe trench to avoid direct contact of hard objects with the compensator, and then cover the original soil.
Considerations
Avoid improper handling: Never use a compensator to adjust the installation error of the pipeline to avoid damaging its performance.
Guidance and Fixation: Ensure that there are sufficient guide brackets and fixed brackets on both sides of the compensator to control the direction of movement of the pipe.
Avoid water standing: For directly buried corrugated compensator, make sure that water will not form around it to avoid corrosion.
Compliance with the Code: Comply with relevant safety codes and construction standards throughout the installation process.
The design of each compensator and the manufacturer's installation guidelines may vary, so during the actual installation, the technical documentation provided by the manufacturer should be referred to in detail to ensure the correct installation. If you encounter an uncertain situation, it is recommended to consult a professional plumbing engineer or the manufacturer's technical support team.