The standard orifice plate is the simplest structure and most adaptable product among throttling devices. Its design, manufacturing, and use all comply with international standard ISO 5167 or national standard GB/T2624.
Features
Can measure flow of various gases, liquids, and steam, with wide adaptability. Simple structure, sturdy, convenient installation, reliable operation, stable performance. No actual flow calibration required, moderate accuracy.
Can be paired with intelligent differential pressure transmitters to achieve temperature and pressure compensation or fieldbus communication.
Main Technical Parameters
- Pressure tapping method: corner tapping (annular chamber or separate drilling), flange tapping, radius tapping
- Nominal pressure (MPa): ≤40 (use high-pressure lens orifice plate or fully welded type after ≥20MPa)
- Nominal diameter (mm): DN50~1000 (standard orifice plate) or DN<50 (built-in orifice plate), DN>1000 (flat orifice plate)
- Accuracy (uncertainty): 0.5%~1.5%
