Brooks Instrument Model 1307 Variable-Area Flowmeter
About this part
1307FL24CJ1AA is a configured Brooks Instrument Model 1307 / GT1307 glass tube variable-area flowmeter identifier observed in Sonisys auction records. Brooks 1307 model-code documentation supports the 1307F base model, L2 size-10 tube context, GPM water scale context, and standard NPT vertical-flow material configuration, but the full configured identifier was not found in an official Brooks-hosted exact-part PDF or build sheet. Final service range, pressure rating, connection details, materials, and options should be verified from the physical nameplate and scale before operational use
Configurations vary. Verify the exact unit before choosing a replacement.
Application classIndustrial automation and process equipment
CategoryFlow Control
Specifications
Identification
Configured part identifier
1307FL24CJ1AA
Device type
Glass tube variable-area flowmeter / rotameter
Model family
Brooks Model 1307 / GT1307 O-ring seal glass tube variable-area flowmeter
Base model code context
Brooks 1307 model-code documentation identifies 1307F as an O-ring seal flowmeter with 250 mm scale length
Flow
Measuring principle
Variable-area flow indication using a tapered borosilicate glass metering tube and float
Tube code context
The 1307 model-code table maps tube designator L2 to meter size 10 with tube number R-10M-25-3F
Scale code context
The 1307 model-code table maps scale code J1 to a detachable GPM water scale for specific gravity 1.0 and viscosity 1.0 cP
Observed exact-unit range context
Stored Sonisys auction titles and listing records text describe this exact configured code as a 0-10 GPM water vertical-read flow meter; this is observed listing context, not a standalone official build sheet
Construction
Float context
The configured code aligns with the size-10 float option 10-RS-138 and 316 stainless steel float-material code in the Brooks 1307 model-code table
Material code context
Material code A in the Brooks 1307 table indicates standard construction with brass fittings, Buna O-rings for sizes 8-10, aluminum side plates, NPT connection style, and vertical inlet / vertical outlet orientation
Family material context
Brooks 1307 documentation lists borosilicate glass metering tubes, UV-stabilized polycarbonate protective sleeve/window materials, selectable float materials, aluminum or stainless side plates, and brass or 316 stainless steel end fitting options depending on configuration
Pressure / Temperature
Size-10 threaded 1307 rating context
Brooks 1307 documentation lists size-10 female-threaded units at 100 psig maximum operating pressure and 250 deg F / 121 deg C maximum operating temperature; verify against the unit label and service conditions
Performance
Model 1307 accuracy context
Brooks 1307 documentation lists standard accuracy as +/-2% full scale, with an optional +/-1% full-scale accuracy option depending on configuration
Repeatability
Brooks 1307 documentation lists repeatability as 0.5% full scale
Options
Accessory code context
Accessory code A in the Brooks 1307 model-code table indicates no listed accessory option
Current family context
GT1600 retrofit documentation
Brooks GT1600 documentation provides current glass-tube variable-area and GT1300/1307 retrofit context, but it is not an exact configured-code build sheet for 1307FL24CJ1AA
Configuration
Configured-unit rule
Tube, float, scale, service fluid, process connection details, seal material, side-plate material, pressure rating, temperature rating, accessories, and calibration must be checked against the complete code, physical label, and scale markings
Applications
Application domain
Industrial liquid or gas flow indication where a glass tube variable-area meter is suitable for the configured materials, pressure, temperature, and process-fluid limits