The installation specifications of steam pipe expansion joints mainly include the following aspects:
Installation position selection: The installation position of the expansion joint should be at the turn or diameter reduction of the pipe, so as to be able to absorb the thermal expansion and contraction deformation of the pipe caused by temperature change. At the same time, it is necessary to ensure that the installation position of the expansion joint is not squeezed or collided by external objects, so as not to affect the normal work of the expansion joint. In addition, the installation position of the expansion joint should also be easy to observe, inspect and replace.
Determination of installation direction: The installation direction of the expansion joint should be consistent with the axis of the pipe, so as to avoid unnecessary bending and twisting, so as not to affect the service life and performance of the expansion joint. In general, the expansion and contraction direction of the expansion joint should be consistent with the expansion and contraction direction of the pipeline or equipment, so as to fully exert its compensation function.
Installation spacing setting: The installation spacing of the expansion joint needs to be determined according to the amount of expansion and contraction and the length of the pipe or equipment. Generally speaking, the installation spacing of expansion joints should be kept within an appropriate range to ensure that the amount of expansion and contraction can be effectively compensated.
Installation of fixed brackets: The installation of expansion joints requires setting fixed brackets to fix the expansion joints and keep them in good working condition. The arrangement of the fixed bracket should be uniform and reasonable, so as to avoid excessive binding force on the expansion joint. For longer piping systems, fixed brackets can be provided at both ends of the expansion joint to better support the action of the expansion joint. However, in general, fixing brackets are not required at both ends of the expansion joint.
Install guide device: The installation position of the expansion joint shall be provided with guide device to prevent the expansion joint from excessive offset and swing during expansion and contraction, so as to ensure its normal operation.
Pre-Installation Inspection: Before installing the expansion joint, a comprehensive inspection of the pipeline system is required to ensure the safe and stable operation of the pipeline. At the same time, the expansion joint itself needs to be inspected to confirm that it is intact.
Coupling and Sealing: The coupling and sealing of the expansion joint needs to be carried out strictly in accordance with the requirements of the pipeline system to ensure the safe and stable operation of the entire system.
In addition, there are some specific installation requirements:
Before the expansion joint is installed, its model, specification and pipe configuration must meet the design requirements.
For expansion joints with inner sleeves, it must be noted that the direction of the inner sleeve coincides with the direction of the medium flow, and that the plane of rotation of the pivotal expansion joint must coincide with the plane of the inner sleeve.
For expansion joints that require "cold setting", the auxiliary parts used for pre-deformation should not be removed until the pipe has been installed.
It is strictly forbidden to adjust the tolerance of the installation mechanism by filing the deformation of the expansion joint, so as to avoid affecting the normal function of the expansion joint, reducing the service life and increasing the load of the limb system.
During installation, slag glue is not allowed to be applied to the surface of the wave plate, and other mechanical damage to the wave plate is not allowed.
In conclusion, the installation of steam pipe expansion joints needs to follow certain specifications and requirements to ensure their normal operation and safe operation. The above content is for reference only. If necessary, it is recommended to consult our company by telephone.