1640AA3A1AA13D00A is a configured Brooks Instrument GT1600 Series glass tube variable-area flowmeter for low-flow liquid service. The Brooks GT1600 model code decodes this unit as a 127 mm low-flow meter with horizontal inlet/horizontal outlet orientation, 316 stainless steel wetted fitting material, 1/4 inch low-flow female NPT process connections, Viton O-rings, direct-reading scale, +/-2% full-scale accuracy option, no integral valve, no alarm, and no hazardous-area approval option
Configurations vary. Verify the exact unit before choosing a replacement.
Application classIndustrial automation and process equipment
CategoryFlow Control
Specifications
Identification
Device type
Glass tube variable-area flowmeter / rotameter
Series family
Brooks Instrument GT1600 Series industrial glass tube variable-area flow meters for liquids and gases
Configured model code
1640AA3A1AA13D00A
Model code
Base meter family
16 = large glass tube flowmeter
Tube length and flow class
4 = 127 mm low-flow configuration
Process orientation
0 = horizontal inlet / horizontal outlet
Model-code release
A = initial global model-code release
Flow
Configured maximum flow code
A3 = 1.9 cc/min water, 0.11 l/h water, 0.11 SLPM air, and 6.7 ln/h air on the GT1600 127 mm low-flow table
Configured tube and float
A3 corresponds to tube R-2-127-AAAAT with a 316 stainless steel float
Materials
Configured fitting material
A = 316 stainless steel fitting material
Family wetted materials
GT1600 documentation lists borosilicate-glass metering tubes, 316/316L stainless steel process fittings, 316/316L or Carboloy floats depending on tube/float code, Teflon float stops, and Viton, Buna-N, Kalrez, or EPDM O-ring options
Connections
Configured connection size
1 = 1/4 inch low-flow connection size
Configured connection type
AA = standard / GT1000 retrofit female NPT process connection
Seals
Configured O-ring material
1 = Viton fluoroelastomer O-rings
Scale
Configured scale
3 = direct-reading scale
Performance
Configured accuracy option
D = +/-2% full-scale meter accuracy
Repeatability
GT1600 family documentation lists repeatability at <=0.5% full scale
Valve and alarms
Configured valve option
0 = no integral valve
Configured alarm option
0 = no alarm
Approvals
Configured approval option
A = no approvals
Applications
Application domain
Low-flow liquid and gas process indication, purge service, seal oil systems, bearing lubrication, cooling-water indication, and industrial process viewing applications
Construction
Frame and shield
GT1600 family documentation lists a 316 stainless steel housing/frame and polycarbonate window/safety shield with UV inhibitor
Pressure
127 mm low-flow pressure context
For GT1600 tube sizes 02 and 06, the family data sheet lists threaded-process-connection pressure ratings up to 500 psi / 34.5 bar for size 02 and 450 psi / 31.0 bar for size 06, with lower limits when alarms are included
Temperature
Ambient temperature limit
GT1600 family documentation lists -4 F to 125 F / -20 C to 52 C ambient temperature limits
Operating fluid temperature limit
GT1600 family documentation lists 33 F to 250 F / 1 C to 121 C operating fluid temperature limits
Serviceability
Tube and float service
GT1600 documentation describes tube and float cleaning or replacement without removing the meter body from process piping
Mounting
Mounting options
GT1600 family documentation supports in-line, panel-mount, and wall-mount installations depending on configuration
Safety
Glass tube fluid caution
Brooks documentation warns not to use glass tube meters with toxic fluids or fluids that chemically react with glass, including water above 140 F / 60 C, steam, alkalis, fluorine, hydrofluoric acid, and molten metal