F: Flow / Frequency / Fuel (context dependent)
FA: Flow Alarm / Fire Alarm
FAC: Flow Alarm Controller
FAD: Forced Air Draft
FAH: Flow Alarm High
FAL: Flow Alarm Low
FAN: Fan
FAS: Fire & Gas / Fire Alarm System
FB: Feedback
FBC: Feedback Controller
FBD: Function Block Diagram
FBM: Fieldbus Module
FBV: Flow Bypass Valve
FC: Flow Controller
FCA: Flow Control Assembly
FCB: Field Control Box
FCC: Flow Control Controller
FCD: Flow Control Device
FCI: Flow Control Indicator
FCL: Flow Control Logic
FCM: Flow Control Module
FCV: Flow Control Valve
FD: Flame Detector / Flow Detector
FDC: Flame Detection Controller
FDF: Forced Draft Fan
FDM: Flow Data Module
FE: Flow Element
FES: Fire & Explosion System
FF: Fieldbus Foundation / Fast Feedback
FFC: Feed Forward Controller
FFD: Flame Failure Device
FFG: Fire Fighting Gas
FFI: Fieldbus Interface
FFS: Fire Fighting System
FG: Fuel Gas / Flue Gas
FGC: Fuel Gas Controller
FGD: Flue Gas Detector / Flue Gas Desulfurization
FGM: Fuel Gas Manifold
FGR: Flue Gas Recirculation
FH: Fire Hydrant
FHC: Fire Hydrant Cabinet
FI: Flow Indicator
FIC: Flow Indicating Controller
FID: Flame Ionization Detector
FIM: Field Interface Module
FIT: Flow Indicating Transmitter
FL: Flow / Flame
FLC: Flow Limit Controller
FLD: Flood / Flow Logic Device
FLG: Flange
FLL: Flow Low-Low
FLM: Flow Limit Monitor
FLS: Flow Limit Switch
FLT: Flow Limit Transmitter
FM: Flow Meter
FMC: Flow Meter Controller
FMD: Flow Measuring Device
FMG: Fuel Metering Gas
FMP: Flow Measuring Point
FN: Function
FO: Fuel Oil / Fail Open
FOC: Fuel Oil Controller
FOD: Fuel Oil Distribution
FP: Fire Protection / Flow Point
FPC: Flow/Fire Protection Controller
FPI: Flow Position Indicator
FPR: Flow Pressure Regulator
FR: Flow Recorder / Frequency
FRC: Flow Recording Controller
FRD: Flow Restriction Device
FRL: Filter Regulator Lubricator
FRP: Fire Resistant Panel
FS: Flow Switch
FSC: Flow Safety Controller
FSD: Fire Shutdown / Flame Safeguard Device
FSG: Flame Safeguard
FSH: Flow Switch High
FSL: Flow Switch Low
FSM: Flow Signal Module
FT: Flow Transmitter
FTC: Flow Totalizer Controller
FTI: Flow Totalizer Indicator
FTM: Flow Transmitter Module
FTR: Flow Totalizer Recorder
FU: Fuse
FUV: Fuel Utility Valve
FV: Flow Valve / Fuel Valve
FVC: Flow Valve Controller
FW: Fire Water / Feed Water
FWP: Fire Water Pump / Feed Water Pump
FX: Function Expansion
*F
Here’s a list of Instrumentation abbreviations starting with the letter “F”, commonly used in P&IDs, datasheets, control systems, and field instrumentation.
