Brooks® Models MT 3809 and 3819 Metal Tube Variable Area Flowmeters - Brooks Instrument - #2

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2 Models MT 3809 & 3819 Data Sheet DS-VA-MT3809-3819-eng September, 2008 Scales Standard: Detachable aluminum plate (Single or dual scales) Graduations: Choice of direct reading units, millimeters or percentage of maximum flow Operating Fluid Temperature Limits (Meter only) Minimum MT 3809 and MT 3819: -20°F (-29°C) Maximum: Standard MT 3809: 420°F(215°C) Standard MT 3809 with Valve: 392°F(200°C) Refer to Table 3 for temperature limitations for meters with electronics. Materials of Construction: Metering Tube MT 3809 Standard: 316L stainless steel MT 3809 Optional: Inconnel 625™, Hastelloy C™, titanium MT 3819 Standard: 316L stainless steel with ETFE (Tefzel) lining Flanges and End Fittings MT 3809 Standard: 316/316L stainless steel dual certified MT 3809 Optional: Inconnel 625, Hastelloy C, titanium MT 3819 Standard: 316L stainless steel Connections MT 3809 Standard: 150 lbs, 300 lbs or 600 lbs RF ANSI B 16.5 flanges or PN 40 DIN 2527/2635; or JIS flanges 10K or 20K; or Female NPT, Male NPT for No O-ring meter only 125/250 Ra micro inch (3.2/6.3 Ra micro meter) cerated flange finish. Consult factory for optional uncerated flange finish. Vertical inlet and outlet MT 3819 Standard: 150 lbs RF ANSI B 16.5 flanges or PN 40 DIN 2527/ 2635 MT 3819 Optional: 300 lbs RF ANSI B 16.5 flanges or PN 40 DIN 2527/ 2635. For other ratings/flange types consult factory. 125/250 Ra micro inch (3.2/6.3 Ra micro meter) cerated flange finish. Consult factory for optional uncerated flange finish. Vertical inlet and outlet Floats MT 3809 Standard: 316L stainless steel MT 3809 Optional: Inconnel 625, Hastelloy C, titanium MT 3819 Standard: Hastelloy C, Sizes 7 and 8, PVDF Sizes 10, 12 and 13. MT 3819 Optional: Inconnel 625 or titanium all sizes; all Teflon® internals Sizes 10, 12 and 13. O-rings (NPT only) MT 3809 Standard: Viton® fluoroelastomers MT 3809 Optional: Teflon®, none with male NPT connections MT 3819: None Indicator Housing and Cover Enclosure NEMA 4X construction MT 3809 and MT 3819 Standard Housing: Die cast aluminum, polyurethane paint with glass window MT 3809 and MT 3819 Optional Housing: 316L stainless steel with gritblast and glass window; epoxy paint for aluminum housing Meter Dimensions Refer to Figure 1 Ordering Information and Model Code Refer to Table 4 OPTIONAL ACCESSORIES Needle control valves and flow controllers (available on the MT 3809 only) For flow rate control, needle control valves or flow controllers may be externally piped into the inlet or outlet side of the instrument. Needle control valves and flow controllers can be supplied up to size 10 (1”) maximum 6.6 gpm (1,500 l/hr) water equivalent. OPTIONAL ELECTRONIC EQUIPMENT Electronic equipment available with the Models MT 3809 and MT 3819 include the Microprocessor Transmitter, Microprocessor Transmitter/Alarm/Pulse Output for totalization, Inductive Alarms, and Transmitter with Inductive Alarms, refer to pages 6 through 15 for additional information. All models are designed to be either Intrinsically Safe (aluminum or stainless steel housing) or Explosion Proof (aluminum housing only). All electronic accessories options are available for high temperature applications. Refer to Table 3 to determine the appropriate model for your application.