I teach you how to choose the globe valve
The selection principle of the globe valve is as follows:
1. Globe valves are suitable for use in pipelines or equipment handling high-temperature and high-pressure media, such as thermal power plants, nuclear power stations, and high-pressure pipelines in petrochemical systems. These environments require reliable shut-off capabilities and durability under extreme conditions.
2. They are ideal for pipelines where flow resistance is not a critical factor, meaning that pressure loss can be ignored. This makes them suitable for applications where the primary function is to stop or start the flow rather than regulate it precisely.
3. Small-sized globe valves can be used in conjunction with needle valves, instrument valves, sampling valves, pressure gauge valves, and other specialized components. Their compact design allows for precise control in smaller systems.
4. When there is a need for flow or pressure regulation, but the required accuracy is not very high, and the pipeline diameter is relatively small (e.g., nominal diameter ≤50mm), globe valves are an appropriate choice. They offer a balance between functionality and cost-effectiveness.
5. In the production of synthetic industrial chemicals, both small and large fertilizer plants often use high-pressure angle-type globe valves. These valves typically have a nominal pressure rating of PN160 (16 MPa) or PN320 (32 MPa), making them suitable for high-pressure applications.
6. In desiliconization workshops and pipelines prone to coking, especially in the production of alumina using the Bayer method, DC-type globe valves or DC-type shut-off valves with removable valve seats are recommended. These designs allow for easier maintenance and the use of carbide sealing pairs, which are resistant to wear and corrosion.
7. In urban water supply and heating projects, globe valves, balancing valves, or plunger valves can be used for smaller pipelines, such as those with a nominal diameter less than 150 mm. These valves provide efficient control and are easy to install in municipal infrastructure.
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1. Globe valves are suitable for use in pipelines or equipment handling high-temperature and high-pressure media, such as thermal power plants, nuclear power stations, and high-pressure pipelines in petrochemical systems. These environments require reliable shut-off capabilities and durability under extreme conditions.
2. They are ideal for pipelines where flow resistance is not a critical factor, meaning that pressure loss can be ignored. This makes them suitable for applications where the primary function is to stop or start the flow rather than regulate it precisely.
3. Small-sized globe valves can be used in conjunction with needle valves, instrument valves, sampling valves, pressure gauge valves, and other specialized components. Their compact design allows for precise control in smaller systems.
4. When there is a need for flow or pressure regulation, but the required accuracy is not very high, and the pipeline diameter is relatively small (e.g., nominal diameter ≤50mm), globe valves are an appropriate choice. They offer a balance between functionality and cost-effectiveness.
5. In the production of synthetic industrial chemicals, both small and large fertilizer plants often use high-pressure angle-type globe valves. These valves typically have a nominal pressure rating of PN160 (16 MPa) or PN320 (32 MPa), making them suitable for high-pressure applications.
6. In desiliconization workshops and pipelines prone to coking, especially in the production of alumina using the Bayer method, DC-type globe valves or DC-type shut-off valves with removable valve seats are recommended. These designs allow for easier maintenance and the use of carbide sealing pairs, which are resistant to wear and corrosion.
7. In urban water supply and heating projects, globe valves, balancing valves, or plunger valves can be used for smaller pipelines, such as those with a nominal diameter less than 150 mm. These valves provide efficient control and are easy to install in municipal infrastructure.
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(Word count: 512)Cylindrical Lens,Cylindrical Lens,Optical Glass Cylindrical Lens,Pcx Cylindrical Lens
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