Variable Area Flowmeters
1355EF2EAJR1A
Brooks Sho-Rate 150 Glass-Tube Variable-Area Flowmeter
About this part
Brooks 1355EF2EAJR1A is a legacy Sho-Rate 150 Model 1355E glass-tube variable-area flowmeter. Verified code elements specify an R-2-15-D borosilicate metering tube, a tantalum float, standard ±5% full-scale accuracy, and a special single detachable scale. Exact-number market evidence associates the configuration with CO2 and a 110–1100 scale, while a stored unit title also reports a 200 PSI marking; the scale units, calibration conditions, connection, seals, and valve/controller provisions require the original label or Brooks order record
Configurations vary. Verify the exact unit before choosing a replacement.
Key Facts
Specifications
| Manufacturer | Brooks Instrument |
| Product line | Sho-Rate "150" Model 1355E |
| Measurement principle | Variable area, using a tapered glass metering tube and spherical float |
| Lifecycle | Legacy Brooks product |
| Metering tube | R-2-15-D |
| Metering-tube material | Borosilicate glass |
| Float material | Tantalum |
| Scale configuration | Special single detachable scale |
| Accuracy | ±5% of full scale; standard Model 1355E accuracy |
| Repeatability | 0.5% of full scale |
| Maximum air capacity | 1250 sccm for the R-2-15-D tube with tantalum float, referenced to air at 14.7 psia and 70°F; a direct-reading scale may terminate at a different value |
| Maximum water capacity | 34.4 cc/min for the R-2-15-D tube with tantalum float; a direct-reading scale may terminate at a different value |
| Nominal scale length | 150 mm |
| Flowmeter assembly pressure/temperature rating | 200 psig from 33°F to 250°F (1°C to 121°C); attached components may impose a lower rating |
| Mounting orientation | Within 6° of true vertical, with the inlet connection at the bottom |
What Does 1355EF2EAJR1A Mean?
The legacy 1355E code tables support the base-model, tube, float, accuracy, and scale interpretations below. Remaining option values require the original Brooks order record for an exact interpretation.
| Segment | Field | Interpretation |
|---|---|---|
| 1355E | Base model | Sho-Rate "150" Model 1355E; 150 mm glass-tube variable-area flowmeter |
| F | Metering tube | R-2-15-D |
| 2E | Float and detachable scale | Tantalum float, standard Model 1355E accuracy, special single scale |
| A | Tube packing and O-ring option | Undecoded option A; verify from the original E-revision order record |
| J | End fitting and process connection option | Undecoded option J; verify material and connection from the original E-revision order record |
| R | Valve or controller provision | Undecoded option R; do not assert a valve or controller configuration without the original order record |
| 1 | Valve/controller location and connection orientation | Undecoded option 1; verify from the original E-revision order record |
| A | Accessory option | Undecoded option A; verify from the original E-revision order record |
Installation and Service Notes
Manufacturer instructions for the 1350E/1355E family include the following operating practices.
- Mount the flowmeter within 6° of true vertical, with flow entering through the bottom fitting.
- Perform a final plumbing and meter leak test before introducing process fluid.
- Read flow at the center of the spherical float.
- An integral needle valve is intended for fine control. Install a separate upstream shutoff valve when tight shutoff is required.
- After storage exceeding two years, or storage outside the specified conditions, replace pressure-boundary seals and pressure-test the device to 150% of its rated pressure before service.
Lifecycle and Replacement Context
Brooks lists the 1350E/1355E series as a legacy product and routes replacement inquiries to the current Sho-Rate product family. Current 1350G/1355G specifications and ordering codes must not be substituted for this E-revision unit.
Documentation Downloads
Local PDF copiesPart Photos
5 imagesHistorical archive images for identification, labels, connectors, and condition reference, not current inventory.
Historical Listings & Prices
Historical listing data, not a current offerThe typical recorded price range is $620.00 to $620.00. Based on 1 archived listing record; not a current offer, appraisal, or confirmed sale price.
View archived listing titles
- BROOKS 1355EF2EAJR1A 200PSI 110-1100 NSNP