Brooks Instrument Variable Area Flow Meter, MT3809G Series
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MT3809 Series Metal Tube Variable Area Flow Meter

Brand: Brooks Instrument
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Brooks Instrument Variable Area Flow Meter, MT3809G Series
Engineered to work where you need it: Choose the MT3809 variable area (VA) flowmeter for all the high-pressure, high-temperature VA flow measurement and control requirements on your next project.

Proven to deliver reliable, repeatable gas and liquid flow measurement and control in thousands of installed locations, the MT3809 is practical and economical, making it the “go-to” choice for Engineering Procurement Contractors (EPC) and major industrial facilities worldwide.

The MT3809G configuration features a digital LCD display with local operator interface, providing valuable process outputs such as totalization and alarm signals. 

It also lets users make parameter changes without removing the cover, which means changes can be made even in hazardous areas.
Features
  • Flow meter offers extremely wide range of flow ratings - supports very low to very high flow rates
  • Temperature ratings from -325° to 788° F (-198° to 420° C )
  • Pressure ratings up to 6,000 psi (standard products) and up to 20,000 psi (custom models)
  • Enhanced LCD display with local operator interface (optional)
  • High-/low-flow alarm functions that meet SIL 2 requirements
  • 316SS stainless steel flameproof housing meets ATEX gas group IIC/Class 1 Div 1 hazardous area rating
  • Selection of corrosion resistant wetted materials and indicator housing to fit demanding application needs
  • Gasket sealing surface meets ASME requirements, no special gaskets required
  • Flow transmitters are available with HART® 7 or FOUNDATIONTM Fieldbus capability and have worldwide approvals
Benefits
  • Repeatable flow measurement even at very low process temperatures and the highest process temperatures of any VA meter
  • Designed to meet ASME B31.3 – a requirement requested at the world’s major industrial facilities
  • Product documentation, material traceability and project planning perfectly blends with the needs of EPC system integrators
  • No power required – reduces usage cost and installation complexity
  • A reliable flow measurement technology that can communicate to control systems over analog or digital interfaces even when power is not available
  • Broad pressure and temperature range enables choosing one meter for multiple uses
  • Excellent reliability and dependability – in use for decades worldwide
  • Globally approved for use in explosive, hazardous environments, meeting the highest international explosion safety requirements
  • Multiple connection options for easier installation
  • Unique flange design avoids the need for special gaskets
  • Weldneck flanges are standard and can be examined for integrity
  • FOUNDATION™ Fieldbus transmitter qualified by EMERSON seamlessly connects to Delta V control system and AMS device manager. Access the install kits here then search for "Brooks 3809G"

Specifications

Brand

Accuracy

  • 1 % Full Scale - MT3809G Model
  • 2 % VDI/VDE Class 1.6 - MT3809G & 3089G TFE Lined Model
  • 3 % VDI/VDE Class 4, 2.5 - MT3809G ELF Model
  • 5 % VDI/VDE Class 4, Class 6, 2.5 - MT3809G ELF, MT3810G Model

Approvals & Certifications

  • SIL
  • NACE
  • EMC
  • EU Directive 2004/108/EC
  • PED: 97/23/EC - Pressure Equipment Directive

BSP Connection

  • 1” BSPT Female
  • 1/2” BSPT Female
  • 1-1/2” BSPT Female
  • 2” BSPT Female

Communication

  • HART

Cover Material

  • Cast 316 Stainless Steel
  • Die Cast Aluminum (Alloy 380)

Electrical Connectors

  • 1/2” NPT Female
  • 3/4” NPT Female
  • M20 x 1.5

Enclosure Finish

  • Indicator Housing & Cover: Epoxy Paint

Enclosure, Body Material

  • Indicator: Cast 316 Stainless Steel
  • Indicator: Die Cast Aluminum (Alloy 380)

Environmental Protection

  • IP64
  • IP66
  • IP67
  • NEMA 4X

Flange Material

  • 316 Stainless Steel
  • 316L Stainless Steel
  • Alloy 625 - MT3809, MT3809 ELF Model
  • Hastelloy C - MT3809, MT3809 ELF Model
  • Titanium Grade 2 - MT3809, MT3809 ELF Model

Flange Size - 1-1/2” (DN 40)

  • 1-1/2” (DN 40) - 150# ANSI
  • 1-1/2” (DN 40) - 300# ANSI
  • 1-1/2” (DN 40) - 600# ANSI
  • 1-1/2” (DN 40) - JIS 10K (B2220)
  • 1-1/2” (DN 40) - JIS 20K (B2220)
  • 1-1/2” (DN 40) - PN 16 (EN 1092)
  • 1-1/2” (DN 40) - PN 40 (EN 1092)

Flange Size - 1” (DN 25)

  • 1” (DN 25) - 150# ANSI
  • 1” (DN 25) - 300# ANSI
  • 1” (DN 25) - 600# ANSI
  • 1” (DN 25) - JIS 10K (B2220)
  • 1” (DN 25) - JIS 20K (B2220)
  • 1” (DN 25) - PN 16 (EN 1092)
  • 1” (DN 25) - PN 40 (EN 1092)

Flange Size - 1/2” (DN 15)

  • 1/2” (DN 15) - 150# ANSI
  • 1/2” (DN 15) - 300# ANSI
  • 1/2” (DN 15) - 600# ANSI
  • 1/2” (DN 15) - JIS 10K (B2220)
  • 1/2” (DN 15) - JIS 20K (B2220)
  • 1/2” (DN 15) - PN 16 (EN 1092)
  • 1/2” (DN 15) - PN 40 (EN 1092)

Flange Size - 2” (DN 50)

  • 2” (DN 50) - 150# ANSI
  • 2” (DN 50) - 300# ANSI
  • 2” (DN 50) - 600# ANSI
  • 2” (DN 50) - JIS 10K (B2220)
  • 2” (DN 50) - JIS 20K (B2220)
  • 2” (DN 50) - PN 16 (EN 1092)
  • 2” (DN 50) - PN 40 (EN 1092)

Flange Size - 3” (DN 80)

  • 3” (DN 80) - 150# ANSI
  • 3” (DN 80) - 300# ANSI
  • 3” (DN 80) - 600# ANSI
  • 3” (DN 80) - JIS 10K (B2220)
  • 3” (DN 80) - JIS 20K (B2220)
  • 3” (DN 80) - PN 16 (EN 1092)
  • 3” (DN 80) - PN 40 (EN 1092)

Flange Size - 4” (DN 100)

  • 4” (DN 100) - 150# ANSI
  • 4” (DN 100) - 300# ANSI
  • 4” (DN 100) - 600# ANSI
  • 4” (DN 100) - JIS 10K (B2220)
  • 4” (DN 100) - JIS 20K (B2220)
  • 4” (DN 100) - PN 16 (EN 1092)
  • 4” (DN 100) - PN 40 (EN 1092)

Flange Type

  • Raised Face (RF)

Fluid

  • Steam
  • Gas
  • Clean Liquid

Materials of Construction

  • Float: PVDF - TFE Lined Model
  • Lining: Tefzel - TFE Lined Model
  • Metering Tube, End Fittings, Float, Hardware: 316 Stainless Steel
  • Metering Tube, End Fittings, Float: 316L Stainless Steel
  • Metering Tube, End Fittings, Float: Alloy 625 - MT3809 Model
  • Metering Tube, End Fittings, Float: Hastelloy C - MT3809, MT3809 ELF Model
  • Metering Tube, End Fittings, Float: Titanium Grade 2 - MT3809 Model
  • Metering Tube, Float: Monel K500 - MT3809 ELF Model
  • Scale (Dark Increments with White Background): Aluminum
  • Window: Glass

NPT Connection

  • 1” NPT Female
  • 1” NPT Male
  • 1/2” NPT Female
  • 1-1/2” NPT Female
  • 1-1/2” NPT Male
  • 2” NPT Female
  • 2-1/2” NPT Male

O-Ring Material

  • Kalrez (4079, 3018) - MT3809 ELF Model
  • Teflon - MT3809, MT3810 Model
  • Viton - MT3809, MT3810 Model

Output

  • Transmitter: 4-20 mA with HART Revolution 7 Communications - MT3809, MT3809 ELF, TFE Lined Model

Power Supply

  • General-purpose & Intrinsically Safe, Relay Alarams (Transmitter): 110 Vac - MT3809, MT3809 ELF, TFE Lined Model
  • General-purpose & Intrinsically Safe, Relay Alarams (Transmitter): 220 Vac - MT3809, MT3809 ELF, TFE Lined Model
  • General-purpose & Intrinsically Safe, Relay Alarams (Transmitter): 24 Vdc - MT3809, MT3809 ELF, TFE Lined Model
  • Transmitter: 21-30 Vdc (2-Wire Current Loop Transmitter)

Rangeability

  • 10:1

Repeatability

  • 0.25 % of Full Scale - MT3809, TFE Lined, MT3810 Model
  • 1 % of Full Scale - MT3809 ELF Model

  • Basic Liquid or Gas Flow Measurement
  • Flare Stacks at Petroleum Refineries and Oil or Natural Gas Wellheads
  • Monitoring Lubrication and/or Coolant for Rotating Equipment
  • Measurement of Additives
  • Monitoring Gases for Furnaces
  • High-pressure Flow on Offshore Oil Platforms
  • Chemical Injection

Documentation

Data Sheets

Product Manuals

Certifications

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