Brooks Instrument / Key Instruments 2530A4A67BVBN Variable-Area Air Flowmeter
About this part
4UM99 is a catalog item number associated with the 2530A4A67BVBN 2530 Series acrylic variable-area flowmeter configuration. Stored auction records describe Brooks Instrument-labeled units, while current exact manufacturer catalog evidence identifies 2530A4A67BVBN as a Key Instruments 2500 Series/2530 Series 0.5 to 5 SCFM air flowmeter with brass fittings, Buna seals, and an inlet valve
Unit-specific configuration
Observed configuration
Historical listing records identify this part as Air. 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
Device type
Acrylic variable-area flowmeter for air
Manufacturer model
2530A4A67BVBN
Catalog item number
4UM99
Series family
Key Instruments 2500 Series / 2530 Series precision-machined acrylic variable-area flowmeters
Flow
Flow range
0.5 to 5 SCFM air
Measuring principle
Variable-area flow measurement with a direct-reading air scale
Performance
Full-scale accuracy
3% full scale at reference conditions of 70 F / 21.1 C and 14.7 psia / 1 bar absolute
Mechanical
Body material
Clear acrylic
Fittings
Brass fittings
Seal material
Buna-N / nitrile seals
Float material
Stainless steel
Valve configuration
Inlet valve
Connection
Connection size
1/4 in FNPT
Pressure and temperature
Maximum pressure
100 psig
Maximum temperature
150 F / 65 C
Dimensions
2530 model dimensions
Approximately 6-5/8 in high, 1-1/8 in wide, 1-3/8 in deep, with 5-1/2 in center-to-center fitting spacing
Compliance
Catalog certifications
International Calibration Certificate, Pressure Equipment Directive 97/23/EC, and RoHS
Applications
Application domain
Air sampling equipment, gas analyzers, medical systems, desalinization equipment, photo processing equipment, aquaculture, and water treatment/distribution support systems
Configuration
Configured-unit rule
Catalog item 4UM99 corresponds to the 2530A4A67BVBN configuration; confirm label, scale, seal condition, valve position, fitting material, and calibration status on the physical unit before use
