MF51IA1BL2D2BEA is a configured Brooks Instrument Mf51i-family mass flow controller identifier. Official Brooks service literature lists MF51I/MF61I in the supported Mf Series calibration family, and Brooks Mf Series data-sheet evidence identifies Mf51i as an industrial mass flow controller with NEMA 4X/IP66 packaging. Stored Sonisys auction records identify this exact code with 2 m3/h and 24 Vdc wording; those details are retained as observed listing context and should be confirmed from the unit label and calibration records before reuse
Unit-specific configuration
Observed configuration
Historical listing records identify this part as 2 m3/h. 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.
Application classIndustrial automation and process equipment
CategoryFlow Control
Specifications
Identification
Configured part identifier
MF51IA1BL2D2BEA
Model family
Brooks Instrument Mf51i / MF51I Mf Series industrial mass flow controller family
Device type
Industrial gas mass flow controller with integral control valve
Function
Primary function
Measures gas mass flow and controls flow to a remote command setpoint
Construction
Enclosure context
Brooks Mf Series data-sheet evidence identifies NEMA 4X and IP66 watertight industrial packaging for the Mf Series
Flow
MF51 model flow-range context
Brooks Mf Series data-sheet evidence places Mf51 in the 10 to 100 slpm nitrogen-equivalent model range; exact gas and full-scale calibration remain unit-specific
Calibration-service family context
Brooks field-service literature lists MF51I/MF61I with the MF50I/MF60I and MF53I/MF63I family for 50 SCCM to 1000 SLPM service-calibration coverage depending on model and gas
Performance
Accuracy context
Brooks Mf Series data-sheet evidence states +/-1% full scale including linearity at calibrated conditions for the Mf Series
Repeatability context
Brooks Mf Series data-sheet evidence states 0.25% of rate repeatability
Response-time context
Brooks Mf Series data-sheet evidence states less than 6 seconds to within 2% of full-scale final value for a 0 to 100% command change
Pressure
Mf51 operating-pressure context
Brooks Mf Series data-sheet evidence lists Mf51 maximum pressure as 1000 psi / 68 bar and Mf51 controller pressure drop as 10 to 50 psid
Environmental
Operating temperature context
Brooks Mf Series data-sheet evidence lists ambient/gas temperature from 41 F to 149 F / 5 C to 65 C
Electrical
Mf51 power context
Brooks Mf Series data-sheet evidence lists Mf51 at 15 to 28 Vdc, with a note that minimum voltage for Mf51 is 22 Vdc
Signal context
Brooks Mf Series data-sheet evidence describes 4-20 mA or 0-5 Vdc command input and 0/4-20 mA or 0-5 Vdc flow output options depending on configuration
Mechanical
Mf51 process-connection context
Brooks Mf Series data-sheet evidence lists Mf51 controller connection options including 9/16-18 UNF, 1/4 inch tube compression, 3/8 inch tube compression, 1/4 inch VCR, and 1/4 inch VCO
Configuration
Configured-unit rule
Gas, full-scale flow, calibration conditions, connection option, signal option, seal material, valve behavior, and approval status vary by configured code and physical unit label
Observed configuration
Stored listing context
Stored Sonisys auction records for this exact identifier use 2 m3/h and 24 Vdc wording; this is observed listing context, not an official model-wide specification
Part Photos
5 images
Historical archive images for identification, labels, connectors, and condition reference, not current inventory.
Historical Listings & Prices
Historical listing data, not a current offer
Archive records2Tracked historical listing records
Historical median price$267.49Based on archived listing records
Recorded price range$240.28 - $294.69Low to high recorded listing price
Local documents0PDF copies available from Sonisys
Recorded price context
The typical recorded price range is $245.72 to $289.25. Based on 2 archived listing records; not a current offer, appraisal, or confirmed sale price.
View archived listing titles
Brooks Instrument MF51IA1BL2D2BEA Mass Flow Meter 2m3/h 24v-dc
