Brooks Instrument MT3809 ELF Metal Tube Variable Area Flow Meters (5%, 3% VDI/VDE class 4, 2.5)

Measuring Range

Rangeability: 10:1 (most sizes)

Metering Tube

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

Premium: Monel® K 500, Hastelloy C

Flanges and End Fittings

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

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

Accuracy: 5%, 3%,,VDI/VDE class 4, 2.5

Repeatability: 1% 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” NPT/Rc Female

Threaded male: 1” NPT Male

O-ring material: Kalrez® 4079

Floats

Standard: 316L stainless steel

Premium: Monel K 500, Hastelloy C

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: Valve/FCA Sizes 0-5

For more details, see datasheet.