Brooks Instrument Sho-Rate 1355G Glass Tube Variable Area Flowmeter
About this part
1355GBA3BAFT1AAA is a configured Brooks Instrument Sho-Rate 1355G low-flow glass tube variable area flowmeter identifier. Official Brooks 1350G/1355G documentation verifies the 1355G as a 150 mm Sho-Rate flow indicator platform for gas and liquid service, with model-code positions for tube, float, scale, seals, fittings, valve, alarms, options, and certifications. The configured code is consistent with R-2-15-A G tube context, stainless steel float with custom decal scale context, Buna packing/O-ring context, 316 stainless steel 1/8 inch NPT threaded fitting with locknut context, and low-flow 316SS Cartridge III valve context; exact scale marking and service suitability should still be confirmed from the physical meter label
Configurations vary. Verify the exact unit before choosing a replacement.
Application classLife sciences and laboratory automation
CategoryFlow Control
Specifications
Identification
Device type
Sho-Rate glass tube variable area flowmeter / rotameter
Series family
Brooks Sho-Rate 1350G/1355G low-flow glass tube variable area flowmeters
Configured part number
1355GBA3BAFT1AAA
Base model context
Brooks model-code documentation identifies 1355 as the 150 mm Sho-Rate Size 1-6 flow indicator base model
Flow
Measuring principle
Variable area flow indication using a tapered borosilicate glass metering tube and metering float
Tube and float context
The configured tube code A maps to R-2-15-A G in Brooks 1355G model-code documentation; the 3B scale/float code maps to a stainless steel float with standard 1355 accuracy and custom decal scale context
R-2-15-A G reference capacity
Brooks 1350G/1355G documentation lists R-2-15-A G for 1355G with stainless steel float reference capacity of 46 cc/min water and 1.6 SLPM air at stated reference conditions
Observed exact-SKU range context
Distributor and stored auction evidence for this exact manufacturer part number describe 5.7 to 57 ccm wording; this is retained as observed exact-SKU context and should be verified against the physical custom decal scale
Configuration
Code interpretation boundary
The configured code is consistent with 1355G base model, brass end-block material, R-2-15-A G tube context, stainless steel custom-decal float/scale context, Buna tube packing and O-ring context, 316SS 1/8 inch NPT threaded fitting with locknut context, low-flow 316SS Cartridge III valve context, inlet/back-back orientation, no alarms, no options, and no additional certifications
Configured-unit rule
Tube number, float material, direct-reading scale, process fluid, calibration basis, end-block material, connection, valve, seals, pressure, and temperature must be verified from the specific unit label and application
Reference conditions
Brooks 1350G/1355G documentation lists air flow rates in standard units at 70 F and 14.7 psia
Performance
1355G family accuracy
Brooks 1350G/1355G data sheet lists 1355G accuracy as +/-3% at reference conditions; configured custom-decal accuracy and application suitability should be verified from the unit documentation
Repeatability
Brooks 1350G/1355G data sheet lists repeatability as 0.25% full scale
Pressure and temperature
Series-level pressure/temperature
Brooks 1350G/1355G data sheet lists 200 psig from 33 F to 250 F / 13.8 bar from 1 C to 121 C; verify the configured unit and application before using this limit
Materials
Series-level materials
Brooks 1350G/1355G data sheet lists borosilicate glass, brass, aluminum, 316 stainless steel, clear polycarbonate, milk white polycarbonate, and Teflon materials of construction depending on configuration
Configured seal context
The model-code A position for tube packing and O-ring materials maps to Buna packing and Buna O-ring context
Connections
Configured connection context
The model-code F position maps to 316 stainless steel 1/8 inch NPT threaded fitting with locknut context
Valve
Configured valve context
The model-code T position maps to Cartridge III low-flow 316SS valve context; the model-code 1 position maps to inlet valve/controller location with back/back connection orientation
Installation
Installation context
Brooks installation documentation covers Sho-Rate 1350G/1355G flowmeter installation, inspection, return, and service procedures; confirm orientation and piping details against the installed unit
Applications
Application domain
Low-flow gas and liquid indication in laboratory, industrial, OEM, and purge applications; exact service is configuration and scale dependent