1350E is Brooks Instrument's legacy Sho-Rate 50 Model 1350E glass tube variable-area flowmeter model. Official Brooks 1350E/1355E documentation identifies the 1350E as the 65 mm Sho-Rate 50 low-flow indicator family with optional needle-valve and integral flow-controller configurations. Exact tube, float, scale, calibrated fluid, valve or controller option, end-block material, seal material, process connection, pressure certification, and flow range remain configured-unit properties that should be verified from the physical unit label and scale markings
Configurations vary. Verify the exact unit before choosing a replacement.
Application classIndustrial automation and process equipment
CategoryFlow Control
Specifications
Identification
Model identifier
1350E
Device type
Glass tube variable-area flowmeter / rotameter
Official model family
Sho-Rate 50 Model 1350E, documented with Sho-Rate 150 Model 1355E
Flow
Measuring principle
Variable-area flow indication using a tapered borosilicate glass metering tube and metering float
Scale
1350 Series scale context
Brooks 1350E/1355E data-sheet context lists the 1350 Series scale length as 65 mm nominal, with R-65 mm or R-100 linear reference scale options depending on configuration
Performance
1350 Series accuracy context
Brooks 1350E/1355E data-sheet context lists 1350 Series standard accuracy as +/-10% of full scale
Repeatability context
Brooks 1350E/1355E data-sheet context lists repeatability as 0.5% full scale
Pressure and temperature
Family rating context
Brooks 1350E/1355E data-sheet context lists 200 psig from 33 F to 250 F / 1 C to 121 C, and 170 psig over the same temperature range when supplied under CRN certification
Materials
Family material context
Brooks 1350E/1355E documentation lists borosilicate glass metering tubes; glass, 316 stainless steel, sapphire, Carboloy, and tantalum float options; aluminum, brass, and 316 stainless steel construction options; and configuration-specific elastomers
Connections
Connection context
Brooks 1350E/1355E data-sheet context lists standard horizontal female 1/8 inch NPT threaded adapters with locknuts, plus optional compression, 1/4 inch female NPT, and hose connection configurations
Options
Valve and controller options
Brooks 1350E/1355E documentation describes optional standard integral needle valves, NRS integral control valves, and integral flow controllers on the inlet or outlet
Applications
Application domain
Low-flow gas and liquid indication or control, depending on configured tube, float, scale, valve, controller, materials, and process conditions
Configuration
Configured-unit rule
Tube and float code, direct-reading scale, calibrated fluid, flow range, valve or controller option, connection, seal, end-fitting material, side-plate material, accessory selections, and pressure certification vary by configured code and unit label
