Brooks 1358F1A1EB1F9A is a legacy Sho-Rate “50” Series size-8 glass-tube variable-area flowmeter. Its code specifies an R-8M-75-1 tube, 8-RV-8 stainless-steel float, tube-mounted GPM liquid scale, legacy Viton/Buna sealing combination, brass 3/8-inch NPT fittings, and an interface for an 8810 flow controller. The selected float and scale correspond to a catalog maximum of 0.8 gpm water at specific gravity 1.0 and viscosity 1.0 cP, with standard ±10% full-scale accuracy. Newer Brooks ordering tables omit the legacy seal code and impose a different compatibility note on orientation code 9, so replacement selection should use the complete identifier and the unit serial/nameplate data
Configurations vary. Verify the exact unit before choosing a replacement.
ManufacturerBrooks Instrument Sho-Rate Model 1358F
Part number1358F1A1EB1F9A
Product familyConfiguration-specific
Device typeFlowmeter
Configuration statusConfiguration varies
Application classIndustrial automation and process equipment
CategoryFlow Measurement
Specifications
Identification
Manufacturer
Brooks Instrument
Series and model
Sho-Rate “50” Series, Model 1358F, size 8
Measurement principle
Variable area, glass metering tube
Configured measurement
Metering tube
R-8M-75-1
Float
8-RV-8, 316 stainless steel
Scale arrangement
Scale on tube with plain side plates
Scale inscription
GPM liquid; specific gravity 1.0; viscosity 1.0 cP; standard 10% accuracy
Catalog maximum flow
0.8 gpm water for the selected 8-RV-8 float
Configured materials
Metering tube
Borosilicate glass
Tube packing and O-ring
Viton tube packing with Buna O-ring; legacy Brooks option B
Configured connections
Process connection
3/8-inch NPT connection with brass fitting and adapter
Port orientation
Inlet port right; outlet port back under the legacy ordering table
Configured interface
Flow-controller provision
Configured for mounting to a Brooks 8810 flow controller; the controller is a separate line item
Configured options
Accessories code
A — none
Model 1358 performance
Standard accuracy
±10% of full scale
Repeatability
0.5% of full scale
Rangeability
10:1
Model 1358 limits
Meter pressure and temperature rating
200 psig from 33°F to 250°F (1°C to 121°C); complete-system limits also depend on the attached controller and process compatibility
Installation
Required mounting position
Within 6 degrees of true vertical, with the inlet in the bottom end fitting
What Does 1358F1A1EB1F9A Mean?
The identifier follows the Brooks Model 1358 ordering-code structure. Legacy and current Brooks tables were reconciled where the available option set changed.
R-8M-75-1 tube; the legacy table describes this as the cut-off version
A
Float
8-RV-8 float, 316 stainless steel
1
Scale arrangement
Scale on the metering tube with plain side plates
E
Scale inscription
GPM liquid scale for specific gravity 1.0 and viscosity 1.0 cP; standard ±10% full-scale accuracy
B
Tube packing and O-ring
Viton tube packing with Buna O-ring; defined in the January 2017 table but omitted from January 2019 and current tables
1
Fitting and connection
3/8-inch NPT connection with brass fitting and adapter
F
Valve/controller configuration
Provision for mounting to an 8810 flow controller; Brooks specifies the controller as a separate line item
9
Connection orientation
Inlet right and outlet back in the legacy table; current documentation restricts code 9 to 8812/8830 controller configurations
A
Accessories
None
Revision-Dependent Configuration
This is a legacy configuration code that cannot be reproduced directly from the current ordering table. Brooks’ January 2017 data sheet defines packing code B as Viton tube packing with a Buna O-ring and permits orientation 9 as inlet-right/outlet-back. The January 2019 and current tables omit packing code B and state that orientation 9 is for 8812/8830 controller configurations, while code F denotes an 8810 controller interface. For a replacement assembly, provide Brooks with the complete model code and the original serial/nameplate information; do not substitute a current configuration solely from the visible meter dimensions.
Installation and Safety Notes
Mount the Model 1358 within 6 degrees of true vertical and support the piping so it does not strain the meter.
Introduce flow slowly and avoid pressure or flow surges.
If adjacent valves isolate a liquid-filled meter, drain it to prevent rupture caused by thermal expansion.
Do not operate above the applicable pressure and temperature limits; the lowest-rated component in the meter/controller assembly governs.
Brooks warns against using the glass-tube meter with toxic fluids or fluids that attack glass, including steam, alkalis, fluorine, hydrofluoric acid, molten metal, and water above 140°F.
