Flow Control
1255AR1081MRSVV
Brooks Instrument Sho-Rate 1255A R1081 Flowmeter
About this part
1255AR1081MRSVV is a configured Brooks Instrument Sho-Rate 1255A low-flow glass tube variable-area flowmeter identifier. Official Brooks 1250/1255 documentation identifies 1255A as the 150 mm tube flowmeter base model and lists R1081 in the Model 1255 millimeter-reference table with a glass float, 1/4 inch float diameter, 23740 CCM air table value, and 565 CCM water table value. Exact distributor catalog pages corroborate this configured part number with 0 to 23740 CCM air and 0 to 565 CCM water context; final service suitability still depends on the physical unit label, tube/float assembly, flow curve, valve arrangement, seals, pressure, temperature, and process fluid
Configurations vary. Verify the exact unit before choosing a replacement.
No archived photo available
Key Facts
ManufacturerBrooks Instrument
Part number1255AR1081MRSVV
Product familyConfiguration-specific
Device typeFlowmeter
Configuration statusConfiguration varies
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 1250/1255 low-flow glass tube variable-area flowmeters |
| Configured part number | 1255AR1081MRSVV |
| Base model context | Brooks model-code documentation identifies 1250A as the 65 mm tube flowmeter base model and 1255A as the 150 mm tube flowmeter base model |
Flow
| Measuring principle | Variable-area flowmeter with tapered borosilicate glass metering tube and metering float |
| R1081 reference capacity | Brooks 1250/1255 documentation lists R1081 with glass float, 1/4 inch float diameter, 23740 CCM air, and 565 CCM water in the Model 1255 millimeter-reference capacity table |
| Observed exact-SKU range context | Exact distributor pages describe 1255AR1081MRSVV with 0 to 23740 CCM air and 0 to 565 CCM water range context |
Configuration
| Code interpretation boundary | The configured code is consistent with 1255A base model, R1081 tube/table context, millimeter scale context, 1/8 inch FNPT stainless end-block context, standard inlet-valve context, and Viton O-ring context; verify installed hardware from the physical label |
| Configured-unit rule | Tube number, float material, reference scale, flow units, end-block material, connection, valve, O-ring material, and process-fluid assumptions must be verified from the specific unit and documentation |
| Reference conditions | Brooks 1250/1255 documentation states reference conditions of 70 deg F (21.1 deg C) and 14.7 psia (1 bar absolute) for listed gas accuracy context |
Performance
| 1255 family accuracy | Brooks 1250/1255 documentation lists Model 1255 accuracy as +/-3% full scale at reference conditions for listed gases |
| Repeatability | Brooks 1250/1255 documentation lists repeatability as 0.25% full scale |
Pressure and temperature
| Series-level pressure/temperature | Brooks 1250/1255 documentation lists 200 psig from 33 deg F to 250 deg F / 13.8 bar from 1 deg C to 121 deg C; verify the configured unit and application before using this limit |
Materials
| Series-level materials | Brooks 1250/1255 documentation lists borosilicate glass, aluminum, 316 stainless steel, clear polycarbonate, Teflon, Viton, Buna, glass, sapphire, stainless steel, Carboloy, and tantalum materials depending on configuration |
| Float material context | The R1081 tube entry uses float material code G, which Brooks identifies as glass |
| Seal context | Brooks model-code documentation maps O-ring code V to Viton for stainless-steel configurations |
Connections
| Connection options | Brooks 1250/1255 documentation lists 1/8 inch NPT with locknuts for aluminum or stainless steel and 1/4 inch NPT with locknuts for stainless steel only |
| Configured connection context | Brooks model-code documentation maps end-block material code S to 1/8 inch FNPT stainless steel; exact distributor pages list 1/8 inch FNPT connection context |
Valve
| Valve context | Brooks model-code documentation includes no-valve, standard inlet-valve, and limited outlet-valve configurations; the V valve code is treated as standard inlet-valve context, subject to physical label confirmation |
Installation
| Mounting orientation | Brooks family documentation supports panel integration, and exact distributor catalog pages identify this manufacturer model as a panel-mount, vertical variable-area flowmeter |
Maintenance
| Tube assembly service | Brooks documentation describes quick removal or installation of tube and float while the meter remains in process piping, and the data sheet describes EZ-CHANGE tube assembly interchangeability |
Applications
| Application domain | Low-flow gas and liquid indication in laboratory, industrial, and OEM applications; exact gas/liquid use is configuration and scale dependent |
Documentation Downloads
Local PDF copiesPart Photos
0 imagesHistorical archive images for identification, labels, connectors, and condition reference, not current inventory.
Historical Listings & Prices
Historical listing data, not a current offerArchive records2Tracked historical listing records
Historical median price$296.99Based on archived listing records
Recorded price range$296.99 - $296.99Low to high recorded listing price
Local documents2PDF copies available from Sonisys
Recorded price context
The typical recorded price range is $296.99 to $296.99. Based on 2 archived listing records; not a current offer, appraisal, or confirmed sale price.
View archived listing titles
- BROOKS 1255AR1081MRSVV Flowmeter,Range @ CCM of Air 0-23740
- BROOKS 1255AR1081MRSVV Flowmeter,Range at CCM of Air 0-23740
Archived listings
Other Part Numbers & Aliases
1255AR1081MRSVVBrooks 1255AR1081MRSVVBrooks Instrument 1255AR1081MRSVV1255A R1081 M R S V VBrooks 1255A R1081 M R S V V