orifice plate

{
  "id": "MLC-T-ENV-019834",
  "term": "orifice plate",
  "field": "Environment",
  "definition": "A flow measurement device for liquids or gases that uses a restrictive orifice plate consisting of a machined hole that produces a jet effect. Typically the orifice meter consists of a thin plate with a square edged, concentric, and circular orifice. The pressure drop of the jet effect across the orifice is proportional to the flow rate. The pressure drop can be measured with a manometer or differential pressure gauge.",
  "subject": "Land, waste and cleanup",
  "references": [
    "Glossary of Technical Terms: Office of Underground Storage Tanks; Office of Underground Storage Tanks Technical Terms"
  ],
  "url": "https://mlchart.com/terminology/environment/orifice-plate/"
}