8 word orifice plate set flow measurement and cut-off function, improve system safety and flexibility, but the high cost, complex operation, measurement accuracy may be affected, the scope of application is limited, need to consider the choice.
The figure of 8 orifice plate is indeed a special orifice plate design that combines the functions of a blind plate and a standard throttling orifice plate to provide both good flow measurement when required and a cut-off function when necessary, making it particularly suitable for isolation applications where a high degree of reliability is required. The advantages and disadvantages of using this type of orifice plate in conjunction with an orifice plate flow meter are as follows:
Advantages
1. Versatility: The octagonal ring orifice plate can not only be used as a flow measurement tool, but can also act as a cut-off device in emergency situations, increasing the flexibility and safety of the system.
2. High sealing: due to the use of similar to the blind design, octagonal ring orifice plate in the closed state can provide excellent sealing effect, to ensure that the medium will not leak, which is particularly important for the delivery of toxic, hazardous or valuable media.
3. Easy to maintain: when the pipeline needs to be repaired or replaced when the internal components, you can close the octagonal ring orifice plate to achieve safe isolation, without having to stop the entire production process, improve the maintenance efficiency.
4. Strong adaptability: It is suitable for fluid measurement under a variety of working conditions, including high temperature, high pressure and other harsh environments, and has a good adaptability to the fluid properties (such as viscosity, corrosivity).
Disadvantages
1. Higher cost: Compared with ordinary orifice plate, the design of octagonal ring orifice plate is more complex, the manufacturing cost is relatively higher, which may increase the initial investment.
2. Complicated operation: Although it can be used as a cut-off device in case of emergency, it also means that the operator needs more training to use the device correctly and avoid safety accidents caused by misuse.
3. Flow measurement accuracy may be affected: when the device is used as a cut-off device and then turned on again for flow measurement, there may be measurement errors due to changes in the position of the orifice plate, etc., affecting the measurement accuracy.
4. Limited scope of application: Although the octagonal ring orifice plate has good sealing and versatility, for some special applications (such as extremely high temperature or pressure conditions), it may be necessary to choose other more suitable solutions.
In summary, the use of octagonal ring plates in combination with orifice plate flowmeters offers new possibilities for industrial fluid control, particularly in applications requiring highly reliable isolation and accurate flow measurement. However, in practice, it is also necessary to consider the cost, ease of operation and other factors to make a reasonable choice.
Hangzhou Economic Development Area，Hangzhou 310018，China
