How to Quickly Identify Gate Valve Parameters from the Nameplate
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Have you ever felt confused by the complex information on a gate valve’s nameplate during installation or procurement? When using a gate valve, quickly and accurately identifying its key parameters can help you avoid selection errors, improper installation, or operational risks. The nameplate provides essential details such as pressure rating, size, material, and design standard.
PN16 means the maximum working pressure is 16 bar.
150LB means that under ASME standards, the valve can withstand about 19.6 bar (for carbon steel; the pressure may vary depending on the material).
Correctly identifying the pressure rating ensures the valve operates safely within the system.
Serial Number (S.N): Facilitates tracking of production and maintenance records.
Manufacturer Name & Model: Essential when ordering spare parts or requesting technical support from the supplier.
Flow Direction: Some gate valves or check valves indicate flow direction on the nameplate to ensure correct installation and prevent backflow or system damage.
Certification Marks (Certification): Labels such as CE, API, or ISO confirm that the valve meets specific industry or international standards, which is important for export or project acceptance.
Special Features or Design Notes: Information such as corrosion resistance, high-temperature resistance, or cryogenic suitability helps determine whether the valve is appropriate for specific operating conditions.
1. Pressure Rating / Class
The nameplate typically shows PN (Nominal Pressure) or Class (ASME pressure class). This indicates the maximum working pressure the valve can withstand. For example:PN16 means the maximum working pressure is 16 bar.
150LB means that under ASME standards, the valve can withstand about 19.6 bar (for carbon steel; the pressure may vary depending on the material).
Correctly identifying the pressure rating ensures the valve operates safely within the system.
2. Nominal Diameter / Size (DN)
DN indicates the nominal diameter of the valve, which corresponds to the pipe connection size. By checking the DN, you can determine the compatible pipeline size. For example, DN50 means the valve is suitable for a pipeline with a 50 mm diameter.3. Body Material
The nameplate specifies the body material, such as WCB, CF8, or A105. Knowing the material helps determine whether the valve is suitable for the medium (e.g., water, steam, acidic or alkaline liquids) and the applicable temperature range.4. Standard & Model
The nameplate usually lists the applicable design standards, such as API 600, BS 1868, or EN 1984, along with the product model. Standards indicate that the valve’s design and manufacturing comply with industry specifications, while the model helps in quickly locating technical documentation or spare parts.5. Temperature Range
The nameplate specifies the maximum (Max) and/or minimum (Min) operating temperatures for which the valve is designed. Always ensure that your fluid temperature falls within this range.6. Other Key Information
Manufacturing Date (DATE): Helps determine the valve’s service life or warranty period.Serial Number (S.N): Facilitates tracking of production and maintenance records.
Manufacturer Name & Model: Essential when ordering spare parts or requesting technical support from the supplier.
Flow Direction: Some gate valves or check valves indicate flow direction on the nameplate to ensure correct installation and prevent backflow or system damage.
Certification Marks (Certification): Labels such as CE, API, or ISO confirm that the valve meets specific industry or international standards, which is important for export or project acceptance.
Special Features or Design Notes: Information such as corrosion resistance, high-temperature resistance, or cryogenic suitability helps determine whether the valve is appropriate for specific operating conditions.
Conclusion
Quickly identifying gate valve parameters through the nameplate is essential for ensuring proper selection, installation, and maintenance. By understanding the information on the nameplate, engineers and procurement staff can efficiently confirm valve specifications, minimize operational risks, and save both time and costs. If you still have questions about a specific nameplate, please feel free to contact our technical support team for further clarification.