Brooks Instrument MT3809 Metal Tube Variable Area Flow Meters (2%, 1%,VDI/VDE class 2.5, 1.6)

Measuring Range

Rangeability: 10:1 (most sizes)

Metering Tube

Standard: 316/316L (dual certified stainless steel)

Premium: Alloy 625, Hastelloy® C, Titanium Gr. II

Flanges and End Fittings

Standard: 316/316L (dual certified stainless steel)

Premium: Alloy 625, Hastelloy C, Titanium Gr. II

Accuracy: 2%, 1%,VDI/VDE class 2.5, 1.6

Repeatability: 0.25% Full Scale

Scale type/material: Dark increments with white background/Aluminum

Installation orientation and location: Vertical (within 5% of true vertical), bottom inlet, top outlet. Do not locate in proximity of other magnetic interfering components

Connections

Flanged: Weldneck flanges

Equivalent to ANSI B16.5: ANSI ½” TO 4” 150# RF; ½” to 2” 900/1500# RF/RTJ; ½” to 2” 2500# RTJ

DIN 2527/ EN 1092-1: DIN PN 40

Flange finish: 3.2-6.3 Ra

Threaded female: 1/2” to 2”NPT/Rc Female

Threaded male: 1” to 2 1/2” NPT Male

O-ring material

Flanged: None

Threaded male: None

Threaded female std: Viton® or Teflon®

Threaded female high pressure 2500lbs: Viton Shore 90 + Teflon back up ring or Kalrez 3018 Shore 90 + Teflon back up ring

Floats

Standard: 316L stainless steel

Premium: Alloy 625, Hastelloy C, Titanium Gr. II

Protection Category

Indicator only: IP66/67 NEMA 4X

Transmitter ALU: IP66/67 NEMA 4X**

Transmitter SS: IP66/67 NEMA 4X

Indicator Housing & Cover material

Indicator only ALU: Die cast Aluminum (Alloy 380), epoxy paint, glass window

Transm/Alarm/HiTemp ALU: Die cast Aluminum (Alloy 380), epoxy paint, glass window

Indicator only SS: Cast 316L stainless steel, glass window

Transm/Alarm/HiTemp SS: Cast 316L stainless steel, 316 stainless steel hardware, glass window

Pressure/Temperature

Maximum Fluid Temperature: 420°C/788°F 

Meter Dimensions

Needle Control Valves & Flow Controllers: Valves Sizes 7-12 / FCA Sizes 7.8

For more details, see datasheet.