The installation of a compensator is a process that requires strict protocols to be followed to ensure that the piping system can operate safely when subjected to thermal expansion, contraction, shock or displacement. Here are some general instructions and steps to follow when installing a compensator:
Preparation before installation
Check compensator: Ensure that the model and specification of the compensator are consistent with the design requirements, and check whether the bellows, sleeve or rubber body and other components are damaged or deformed.
cleanup: Remove foreign objects in the pipeline, ensure that the installation area is clean, and prevent welding slag, dust, etc. from entering the inside of the compensator.
Pipe support: Confirm that the pipe support is set up reasonably enough to support the pipe and compensator and prevent excessive displacement of the pipe due to gravity or thermal expansion and contraction.
Installation process
location: Place the compensator in the predetermined position of the pipe, ensuring that it is coaxial with the pipe and in the correct direction (e.g. media flow direction of the inner sleeve).
Connection: Select flange connection, welding, or other connection according to the type of compensator. If using a flanged connection, make sure the flange surfaces are aligned parallel and the bolts are evenly tightened.
Pre-stretching: For compensators requiring pre-stretching, pre-stretch as per design requirements to accommodate the thermal expansion of the pipe.
fixing bolt adjustment: For some compensation After installation, the fixing bolts should be adjusted to ensure that the compensator can expand and contract freely when the pipeline expands and contracts.
Install auxiliary components: For compensators requiring "cold tightening", auxiliary components should be used for pre-deformation during installation, but these auxiliary components should be removed after installation.
Inspection after installation
Check coaxiality: Ensure the coaxiality of the compensator with the pipe to avoid unnecessary friction or wear.
Fixed bracket reinforcement: Verify that all fixed brackets and guide brackets are reinforced to prevent pipe displacement or overstretch.
Hydraulic test: After completion of installation, a hydraulic test is performed to detect the tightness and strength of the compensator and piping system.
Special precautions
Avoid mechanical damage: Avoid welding slag splashing to the bellows surface during installation to prevent mechanical damage.
Inner sleeve direction: For compensators with inner sleeves, ensure that the direction of the inner sleeve coincides with the direction of the medium flow.
hinged compensator: The hinge rotation plane of the hinge compensator shall be consistent with the displacement rotation plane.
Rubber joint: The rubber joint should avoid artificial deformation during installation, and the bolts should be tightened symmetrically and evenly to prevent the sphere from separating from the flange.
The above steps should be adjusted according to the specific compensator type and the installation guidelines provided by the manufacturer. During installation, it is important to follow all safety procedures to ensure the safety of the workers.