Flow Control
1255AR1041MRSVV
Brooks Instrument Sho-Rate 1255 Variable Area Flowmeter
About this part
1255AR1041MRSVV is a Brooks Instrument Sho-Rate 1255 glass-tube variable area flowmeter configured for a 0 to 855 ccm air range. distributor records identify the exact part as a panel-mount, vertical, scale-display mechanical flowmeter with 1/8 in FNPT process connections, aluminum body construction, Viton seals, stainless wetted materials, and an ICC calibration certificate. Exact calibration gas, scale markings, valve package, and service condition should be verified from the physical meter
Unit-specific configuration
Historical listing records identify this part as Air at 0 to 855 ccm. Exact gas, range, fittings, valve configuration, and communication interface must be verified from the physical unit label.
Configurations vary. Verify the exact unit before choosing a replacement.
No archived photo available
Key Facts
Specifications
| Device type | Direct-reading glass tube variable area flowmeter |
| Series family | Sho-Rate 1250/1255 Series |
| Exact distributor item identifiers | Grainger item 1XLW9 and Zoro item G1439523 identify this exact manufacturer part number |
| Measuring principle | Variable-area rotameter with tapered borosilicate glass tube and float |
| Exact air flow range | 0 to 855 ccm air |
| Exact water flow range | 0 to 18 ccm water in distributor product data |
| Compatible media | Air and water in exact distributor product data |
| Scale and display | Mechanical scale display; no totalizer and no pressure gauge listed for the exact part |
| Accuracy | +/-3% for the 1255 series and exact distributor product data |
| Repeatability | 0.25% of full scale at the 1250/1255 series level |
| Maximum operating pressure | 200 psig in official series specifications and exact distributor product data |
| Media temperature range | 33 to 250 degrees F in exact distributor product data |
| Fluid temperature range | 40 to 200 degrees F appears in distributor product details for this exact item |
| Mounting | Panel mount, vertical orientation |
| Connection | 1/8 in FNPT process connection |
| Body / housing material | Aluminum |
| Wetted materials | 316 stainless steel, borosilicate glass, clear polycarbonate, PTFE, and Viton in exact product data |
| Fitting and insert material | Stainless steel |
| Seal and O-ring material | Viton |
| Overall dimensions | Approx. 2.3 in length, 1.3 in width, and 9.8 in height |
| Pipe size context | 5-9/10 in field appears in exact distributor data; verify panel cutout and installed tubing requirements from the unit and manual |
| Calibration certificate | International Calibration Certificate (ICC) listed in exact product data |
| Scale options | Sho-Rate 1250/1255 documentation supports direct-read or millimeter scales for air, nitrogen, and water at reference conditions, with additional gas scale options |
| EZ-CHANGE service design | Sho-Rate 1250/1255 documentation describes quick tube and float removal or installation while the meter remains in the process piping |
| Application domain | Low-flow gas and liquid indication or flow adjustment in laboratory, industrial, OEM, panel, and light process applications |
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 offerThe typical recorded price range is $398.99 to $518.75. Based on 11 archived listing records; not a current offer, appraisal, or confirmed sale price.
View archived listing titles
- Brooks Flowmeter,Flow Range @ CCM of Air 0-855 1255AR1041MRSVV Brooks
- Brooks 1255Ar1041mrsvv Flowmeter,Flow Range @ Ccm Of Air 0-855
- Brooks 1255Ar1041mrsvv Flowmeter,Flow Range At Ccm Of Air 0-855