Chemical injection package P&ID symbol

Chemical injection package

Company / operator legend practice (API 6A, API 521, API 537) / PIP PIC001
Drawn as
A dash-dot package boundary holding a chemical tank (or tote) and one or more metering pumps (pump circles with diagonal arrows), with injection lines leaving to the process.
Meaning
Chemical injection skid: corrosion and scale inhibitor, demulsifier, methanol, biocide, antifoam. Becomes chemical-injection-skid (outlets = number of injection lines).
Variants
  • Methanol packages are drawn the same
  • Each injection line often has a flow indicator and a check valve at the injection quill
Tags
C · X · CI