How to maintain and maintain the metal corrugated compensator?

Compensator. Installation precautions and installation methods:

1. The installation of the compensator should be carried out in accordance with the construction drawings of the piping system designed by the design institute and the requirements of the installation instructions of the compensator.

2. The pipeline for installing the compensator must be properly guided and fixed in order to make the compensator play a role, so the setting of the guide and fixing bracket must be carried out in strict accordance with the relevant technical data of the design department.

3. The bellows used in the compensator is formed by thin-walled stainless steel plate, so it is necessary to pay attention not to damage the bellows due to knocking, scratching, arc striking, welding spatter and other reasons during transportation, hoisting and welding.

4. In order to make the bellows in good working condition, the deformation of the compensator, including transverse, axial, torsion, etc., can not be used to correct the installation error of the pipe system position during installation.

5. Before the system is running, the small tie rod is generally not recommended to be removed, but after the suppression is completed, the Panasonic inner nut is sent according to the compensation amount.

Here are some of the well-known brands recognized in the compensator industry that are widely recognized and have a great reputation. Although the ranking may change due to time and market conditions, the following brands are generally considered to be among the top brands in the valve industry: Water System Valves and Industrial ValvesThe following more influential first-line brands can be used as a reference, but are for reference only:

Suzhou Neway Valve, Shanghai Qizhong Valve, Shanghai Guanlong Valve, Sanhua, Su Yan, Shentong, Su Valve, Nanfang, Jiang.

First, the word Yao. The above manufacturers are only estimates and references, and the specific situation may vary or fluctuate at any time due to changes in a series of factors such as changes in the market, the size of the competition pattern, and the stability of product quality. As an indispensable key device in industrial production and civil facilities, the quality and reputation of the valve brand directly affect the satisfaction and trust of users.

These brands are known in the valve industry for their innovative technology, high-quality products and reliability. It is important to note that the market and industry are evolving rapidly, and different rankings may vary depending on time and region. For the most up-to-date ranking information, it is recommended to refer to industry reports, professional organizations or market research data for more detailed and accurate information.

Under normal use, the metal corrugated compensator is just a joint that does not need to be damaged by man, and it does not need to be maintained.

1.The corrugated compensator should be checked for its model, specification and pipeline configuration before installation, and must meet the design requirements. Attention should be paid to the compensator with the inner sleeve to make the direction of the inner sleeve consistent with the direction of the medium flow, the hinge rotation plane of the hinge type compensator should be consistent with the displacement rotation plane, and the compensator that needs to be "cold tightened" needs to be carried out, and the auxiliary components used in the pre-deformation should be removed after the pipeline is installed.

2.It is strictly forbidden to use the method of corrugated compensator deformation to adjust the installation deviation of the pipeline, so as not to affect the normal function of the compensator, reduce the service life and increase the load of the piping, equipment and supporting components.

3.After the installation of the pipe system, the yellow auxiliary positioning components and fasteners used for installation and transportation on the corrugated compensator should be removed as soon as possible, and the limiting device should be adjusted to the specified position according to the design requirements, so that the piping system has sufficient compensation ability under environmental conditions, and all the moving elements of the corrugated compensator shall not be stuck by external components or limit its range of activity, and the normal operation of each moving part shall be ensured during the hydrostatic test, and the sub-fixed pipe frame equipped with the end of the compensator pipeline shall be reinforced, so that the pipeline will not move or rotate.

4.For the compensator and its connecting pipeline used for gas medium, it is necessary to pay attention to whether it is necessary to add a temporary bracket when filling with water. After the hydrostatic test, the water in the water cleaning solution should be drained as soon as possible, and the inner surface of the wave shell should be dried quickly.

The insulation material in contact with the compensator bellows should be free of chloride ions.

Corrugated compensator, also commonly called expansion joint, or expansion joint, belongs to a compensation element. It is composed of the bellows (an elastic element) and the end pipe, bracket, flange, conduit and other accessories that constitute its working body, and uses the effective expansion and contraction deformation of the bellows of its working body to absorb the dimensional changes caused by thermal expansion and cold contraction of pipelines, conduits, containers, etc., or to compensate for the axial, lateral and angular displacements of pipelines, conduits, containers, etc., and can also be used for noise and vibration reduction, which is widely used in modern industry. Corrugated compensator installation and use requirements.

1. Before installation, the corrugated compensator should check its model, specification and pipeline configuration, and must meet the design requirements;

2. For the corrugated compensator with an inner sleeve, attention should be paid to making the direction of the inner sleeve consistent with the direction of medium flow, and the hinge rotation plane of the hinge corrugated compensator should be consistent with the displacement rotation plane;

3. The corrugated compensator that needs to be "cold tightened", and the auxiliary components used for pre-deformation should be removed after the pipeline is installed;

4. It is strictly forbidden to adjust the installation deviation of the pipeline by the method of deformation of the corrugated compensator, so as not to affect the normal function of the compensator, reduce the service life and increase the load of the piping, equipment and supporting components;

5. During the installation process, welding slag is not allowed to splash on the surface of the corrugated shell, and the corrugated shell is not allowed to be damaged by other machinery;

6. After the installation of the pipe system is completed, the yellow auxiliary positioning components and fasteners used for installation and transportation on the corrugated compensator should be removed as soon as possible, and the limiting device should be adjusted to the specified position according to the design requirements, so that the pipe system has sufficient compensation ability under environmental conditions;

7. All the moving elements of the compensator shall not be stuck by external components or limit their range of activity, and the normal operation of each moving part shall be ensured;

8. During the hydrostatic test, the sub-fixed pipe frame equipped with the end of the compensator pipeline should be reinforced, so that the pipeline does not move or rotate, and whether it is necessary to add a temporary bracket when filling the compensator and its connecting pipeline for the gas medium, and the 96 chloride ion content of the water cleaning solution for the hydrostatic test does not exceed 25ppm;

9. After the hydrostatic test, the water in the wave shell should be drained as soon as possible, and the inner surface of the wave shell should be dried quickly;

10. The insulation material in contact with the compensator bellows should not contain chlorine.

1. Before the installation of the bellows compensator, check whether its model, specification and pipeline configuration meet the design requirements.

2. For the compensator with an inner sleeve, the direction of the inner sleeve should be consistent with the flow direction of the medium, and the hinge rotation plane of the hinge compensator should be consistent with the displacement rotation plane.

3. For the compensator that needs to be "cold tightened", the auxiliary parts used for pre-deformation shall not be removed before the pipeline is installed.

4. It is strictly forbidden to adjust the installation tolerance of the pipeline by the method of corrugated compensator deformation, so as not to affect the normal function of the compensator, reduce the service life of the pipeline system, equipment and supporting components, and increase the load.

5. During the installation process, the welding slag is not allowed to splash on the surface of the wave shell, and the wave shell is not allowed to have other mechanical damage.

6. After the installation is completed, the yellow auxiliary positioning elements and fasteners used for installation and transportation on the corrugated compensator should be removed as soon as possible, and the limiting device should be adjusted to the specified position according to the design requirements, so that the pipeline system has sufficient compensation capacity under environmental conditions.

7. All the moving parts of the compensator are not blocked or restricted by the external parts, and the normal operation of the moving parts is guaranteed.

Compensator installation precautions and installation methods:

1. The compensator is a special pipeline component, the installation is complex and the requirements are strict, and it is necessary to calculate the thrust of the pipeline and the force of the injection fixed support, so it cannot be installed without authorization, otherwise it will cause an accident. Therefore, the installation must be carried out with the detailed configuration of the pipeline construction drawings and pipe supports provided by the professional design department, and refer to the requirements of the compensator installation instructions.

2. The pipeline for installing the compensator must be properly guided and fixed in order to make the compensator play a role, so the setting of the guide and fixed bracket must be carried out in strict accordance with the relevant technical data of the design department.

3. The bellows used in the compensator is formed with thin-walled stainless steel plate, so it is necessary to pay attention not to damage the bellows due to knocking, scratching, arc striking, welding spatter and other reasons during transportation, hoisting and welding.

4. Before installation, the bellows and foreign bodies in the pipeline should be removed to ensure the normal movement of the bellows.

5. The compensator with flow direction requirements should be installed according to the requirements of the medium flow direction arrow.

6. In order to make the bellows in good working condition, the deformation of the compensator, including axial, transverse, torsion, etc., can not be used to correct the installation error of the pipe system position during installation.

7. Before the operation of the system, the small tie rod is generally not recommended to be removed, but after the suppression is completed, the inner nut is loosened according to the compensation amount.

8. When purchasing, do not only rely on the model or code, but provide data to the manufacturer, and design and produce by the manufacturer to ensure the service life or quality.

1. When the corrugated compensator is used in the pipeline, more attention must be paid to assembly and maintenance, in order to maintain the normal operation of the withering, the joint must not be allowed to leak, and the condensation tank must not be less water, and it is necessary to maintain and add water appropriately. It is originally other self-supporting corrugated compensators, and it is necessary to pay attention to the daily maintenance of orange maintenance in use.

2. The closed characteristics of the corrugated compensator refer to the level of each sealing part to prevent the leakage of substances, which is also a technical performance index. There are three closed parts: the contact between the compensator and the high-pressure gate valve; where the filler is mated to pipes and pneumatic quick couplings; The junction with the screw cap.

Flanged or threaded connections.

Installation precautions: The transportation protection should not be removed before installation; It is strictly forbidden to arc or lap the ground wire on the bellows; During welding and cutting operations, chlorine-free wet asbestos cloth should be used to protect the corrugations to prevent sparks from splashing and damaging the corrugations; When installing, the bellows is not allowed to be torsional, the pipe interface should be adjusted first, it is strictly forbidden to use the bellows to forcibly make up for the counterpart, when the expansion joint is equipped with a diversion pipe or marked with a flow direction mark, the installation direction must be consistent with the flow direction of the medium, and it is strictly forbidden to install it in reverse; Only one or a set of expansion joints can be installed between the two fixing brackets; Expansion joints that need to be pre-deformed (cold tightened) can be carried out at the manufacturing plant or on site, but the total compensation (including installation error, pre-deformation, displacement and vibration, etc.) shall not be greater than the limit compensation; After installation, the transport protector must be removed (generally painted yellow).

Wuxi Fulaike bellows****.