Flow Control
B-2-15-B
Brooks Instrument Archive Identifier for Model 1355 Sho-Rate Rotameter
About this part
B-2-15-B is an archive identifier associated with an observed Brooks Instrument Model 1355 Sho-Rate glass-tube variable-area flowmeter. Brooks-issued 1355 literature documents R-2-15-B—not B-2-15-B—as a Size 2, 150 mm rib-guided metering-tube number. Do not assert B-2-15-B as an official Brooks model or tube number without a readable physical tube marking. The fluid, scale, float, range, fittings, seals, valve and calibration cannot be inferred from the archived identifier
Configurations vary. Verify the exact unit before choosing a replacement.
Key Facts
Specifications
| Archive identifier | B-2-15-B |
| Observed product family | Brooks Instrument Sho-Rate Model 1355 |
| Documented Brooks tube counterpart | R-2-15-B G for the current 1355G family; equivalence to B-2-15-B is not established |
| Measuring principle | Variable area using a tapered borosilicate-glass metering tube and float (1355 family) |
| Nominal scale length | 150 mm (1355 family) |
Identifier Relationship
The archived identifier must remain distinct from the tube number used in Brooks documentation.
R-2-15-B G Reference Capacities
These Brooks 1355G family values apply only after confirming an R-2-15-B G tube and the installed float material. Air values are specified at 70°F and 14.7 psia. They do not establish the configuration of B-2-15-B or the observed revision-C meter.
| Float material | Water full scale | Air full scale |
|---|---|---|
| Glass | 53 cc/min | 2.3 slpm |
| Sapphire | 80 cc/min | 3.0 slpm |
| 316 stainless steel | 130 cc/min | 4.6 slpm |
| Carboloy | 200 cc/min | 6.7 slpm |
| Tantalum | 210 cc/min | 7.1 slpm |
Selection and Service Boundary
A tube identifier alone does not define a calibrated flowmeter configuration.
- Match the complete Brooks meter model, tube number and tube revision before selecting replacement components.
- Confirm the installed float material, scale inscription, process fluid and reference conditions before interpreting a flow range.
- Do not apply 1355G pressure, temperature, accuracy or repeatability ratings to the observed 1355C configuration without revision-specific documentation or readable nameplate evidence.
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 $29.95 to $29.95. Based on 1 archived listing record; not a current offer, appraisal, or confirmed sale price.
View archived listing titles
- Brooks Instrument Rotameter Flow Meter Model 1355 1355CB1C7AAG Size B-2-15-B