FLUOR - New Delhi Control systems engineering

FLOW INSTRUMENTS (Part-1)

By Harendra Mistry

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In-line Flow Instruments over view

Industrial Codes, standards & Practices

Fluor Standard practices

OBJECTIVE: OBJECTIVE

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WHAT IS FLOW INSTRUMENT?

It is a Measuring Device (fluid flow) installed in piping systems to assist in the monitoring/ control of process.

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TYPES of FLOW INSTRUMENT

Orifice Plate Flow NozzleVenturi TubeAnnubar (Pitot Tube)

Magnetic Flow Meter Vortex Flow MeterUltrasonic Flow Meter

Coriolis Flow Meters

Thermal Flow Meter

Rotameter

Flow Instruments

Positive Displacement Meter

Turbine Flow Meter

Variable Area Meter

Head Meters

Velocity Meters

Mass Meters

Mechanical Meters

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Upstream Downstream

FLOW

P&ID SYMBOL

FE

ORIFICE PLATE

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FLOW NOZZLE

P&ID SYMBOL

FE

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VENTURI TUBES

P&ID SYMBOL

FE

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ANNUBAR (PITOT TUBE)

P&ID SYMBOL

FE

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ROTAMETER

P&ID SYMBOL

FI

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MAGNETIC FLOW METER

P&ID SYMBOL

FE

M

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VORTEX FLOW METER

P&ID SYMBOL

FE

V

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ULTRASONIC FLOW METER

P&ID SYMBOL

FEDoppler Shift

Transit Time

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ULTRASONIC FLOW METER

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CORIOLIS METER

P&ID SYMBOL

FE

FT

C

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THERMAL METER

P&ID SYMBOL

FE

FT

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POSITIVE DISPLACEMENT METER

P&ID SYMBOL

FQI

Oval Gear Rotating Lobe Rotating Impeller

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TURBINE FLOW METER

P&ID SYMBOL

FE

Inductance pick-up Reluctance pick-up

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Industry Codes and StandardsAmerican Gas Association (AGA)

AGA-7 - Measurement of Gas by Turbine MetersAmerican National Standards Institute (ANSI)

ANSI-2530/API-14.3/AGA-3/GPA-8185 Natural Gas Fluids Measurement - Concentric, Square-Edged Orifice Meters

Part 1 General Equations and Uncertainty GuidelinesPart 2 Specification and Installation RequirementsPart 3 Natural Gas ApplicationsPart 4 Background, Development, Implementation Procedures and Subroutine Documentation

American Petroleum Institute (API)API Manual Of Petroleum Measurement Standards (MPMS):Chapter 5 - Metering5.2 Measurement of Liquid Hydrocarbons by Displacement Meters5.3 Measurement of Liquid Hydrocarbons by Turbine Meters

American Society of Mechanical Engineers (ASME)ASME B16.36 - Orifice FlangesASME MFC-3M - Measurement of Fluid Flow in Pipes Using Orifice, Nozzle, and Venturi

ISA, The Instrumentation, Systems, and Automation SocietyISA S20 - Specification Forms for Process Measurement and Control Instruments,

Primary Elements and Control ValvesInternational Organization for Standardization (ISO)

ISO 5167-1 - Measurement of Fluid Flow by Means of Pressure Differential Devices

Other ReferencesMiller, R.W., Flow Measurement Engineering Handbook

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DESIGN RESPONSIBILITIESFLUOR PRACTICES

PRACTICE No. 000.270.1301 : Flow InstrumentsThis practice establishes and defines guidelines for the use and selection of flow instruments

PRACTICE No. 000.270.1351 : Head Type flow metersThis practice establishes application guideline, sizing criteria, and method to be utilized in developing specification for head type flow elements

PRACTICE No. 000 250 2710 : Meter Runs - Orifice, Flow Nozzles, and VenturiesThis practice is used for determining minimum straight pipe runs needed for various meter run installation

PRACTICE No. 000 250 2711 : Instrument Piping - Orifice Flange Tap Piping

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Questions?

FLOW INSTRUMENTS