Mechanical flow control device

{
  "id": "MLC-T-ENV-016837",
  "term": "Mechanical flow control device",
  "field": "Environment",
  "term_source": "Mechanical Flow Control Device",
  "definition": "Device that is used to ensure constant flow to an evacuated canister to near ambient pressure. MCFD are designed to maintain a constant pressure drop (and thus a constant flow rate) across a restrictive orifice by allowing a constant leak rate of sample into the canister as the canister vacuum decreases to near ambient pressure without power.",
  "abbreviation": "MFCD",
  "subject": "Built environments",
  "references": [
    "40 CFR Appendix A to Part 63"
  ],
  "url": "https://mlchart.com/terminology/environment/mechanical-flow-control-device/"
}