Installation of valve
Classification:
Release Time：2021-05-18
Installation of valve Description of installation contents of valve: 1. Before installation, check the appearance of the valve without cracks, sand holes and mechanical damage. 2. Check and confirm that the nameplate is in good condition and meets the use requirements. 3. Remove the residue in the valve. 4. Rotate the valve stem to see if it is flexible and free, and install it after confirmation to avoid invalid work. After the inspection is completed, clean the pipeline connected to the valve, and use compressed air to blow away the welding slag and other debris in the pipeline. 5, installation, should be strictly in accordance with the installation instructions provided by the manufacturer. When installing the threaded valve, the sealing packing should be wound on the pipe thread to avoid accumulation in the valve and affect the circulation of the medium. When installing the flange valve, pay attention to the symmetrical and uniform tightening according to the specified torque to avoid uneven tightening torque and damage to the valve. The valve has a direction mark on the valve body, and should be installed correctly according to the direction of the valve flow in and out. For example, check valves, globe valves, throttle valves, pressure reducing valves, if installed upside down, will lose the function of the valve in the pipeline system, and even cause danger. Installation of valve insulation device. Condensation and agglomeration of the medium in the ambient temperature shall be combined with the pipeline for heat preservation and heat tracing to prevent the valve from freezing. (6) For pipelines conveying flammable and explosive gases, nitrogen must be used to purge and replace the pipelines before the pipelines are put into operation, so as to prevent the transmission medium and the oxygen in the pipelines from forming the explosion limit and avoid the occurrence of explosion.
Installation of valve
Description of installation contents of valve:
1. Before installation, check the appearance of the valve without cracks, sand holes and mechanical damage.
2. Check and confirm that the nameplate is in good condition and meets the use requirements.
3. Remove the residue in the valve.
4. Rotate the valve stem to see if it is flexible and free, and install it after confirmation to avoid invalid work. After the inspection is completed, clean the pipeline connected to the valve, and use compressed air to blow away the welding slag and other debris in the pipeline.
5, installation, should be strictly in accordance with the installation instructions provided by the manufacturer. When installing the threaded valve, the sealing packing should be wound on the pipe thread to avoid accumulation in the valve and affect the circulation of the medium. When installing the flange valve, pay attention to the symmetrical and uniform tightening according to the specified torque to avoid uneven tightening torque and damage to the valve. The valve has a direction mark on the valve body, and should be installed correctly according to the direction of the valve flow in and out. For exampleCheck Valve,Globe valve,Throttle valve,Pressure reducing valveIf the installation is reversed, it will lose the function of the valve in the pipeline system and even cause danger. Installation of valve insulation device. Condensation and agglomeration of the medium in the ambient temperature shall be combined with the pipeline for heat preservation and heat tracing to prevent the valve from freezing.
6. For pipelines transporting flammable and explosive gases, nitrogen must be used to purge and replace the pipelines before the pipelines are put into operation to prevent the transmission medium and the oxygen in the pipelines from forming explosion limits and avoiding explosion.
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