This manual provides detailed instructions for installing and operating throttling devices such as standard orifice plates, quarter‑round plates, conical inlet plates, and ring‑type plates. It explains the principle of operation, the range of applicable fluids, and the benefits of the devices in industries like petroleum, chemical, metallurgy, power generation, and research.
The document also covers the various pressure‑tapping options, connection methods (flange or welding), technical parameters, and a comprehensive model code list to help users select the appropriate device for their specific flow‑measurement needs. This manual is written in Chinese.
| Nominal diameter (mm) | 50‑2600 |
|---|---|
| Nominal pressure (MPa) | <42 |
| Reynolds number range (ordinary fluid) | 4×10‑? – 1×10‑? |
Both flange and welding connections can be used, depending on the pipe size and pressure rating.
They are used in petroleum, chemical, metallurgical, power, light‑industry, research, and military applications.