Variable Area Flowmeters
3604EA1A5A1A
Brooks Instrument High-Pressure Thru-Flow Indicator
About this part
Brooks Instrument 3604EA1A5A1A is a legacy 3604 & 09 high-pressure thru-flow indicator. It is a mechanical metal-tube variable-area flowmeter intended to provide local flow indication in a process line. The complete identifier represents a configured instrument; its calibrated range, process fluid, scale conditions, connections, wetted materials, pressure limits, and options must be taken from the unit nameplate or its calibration record
Configurations vary. Verify the exact unit before choosing a replacement.
Key Facts
Specifications
| Manufacturer | Brooks Instrument |
| Part number | 3604EA1A5A1A |
| Legacy model line | 3604 & 09 High-Pressure Thru-Flow Indicator |
| Instrument type | Metal-tube variable-area flowmeter |
| Indication | Local mechanical flow indication |
| Product status | Legacy/discontinued product line |
What Does 3604EA1A5A1A Mean?
The public Brooks ordering tables for current MT3601 and MT3602 instruments do not decode this older 3604 identifier format.
| Segment | Field | Interpretation |
|---|---|---|
| 3604 | Base model | Legacy Brooks high-pressure thru-flow indicator / metal-tube variable-area flowmeter. |
| EA1A5A1A | Configured suffix | Legacy configuration code. Its individual fields are not decoded in the available manufacturer documents; do not infer the range, fluid, scale, connection, materials, pressure rating, valve, or alarm options from current MT3601/MT3602 codes. |
Configuration and Replacement Requirements
Selection and replacement require the configured-unit data, not merely the 3604 family designation.
- Confirm the calibrated flow range, engineering units, process fluid, reference temperature and pressure, and fluid properties from the scale or calibration record.
- Confirm the connection size and type, pressure and temperature ratings, wetted materials, seals, and any valve or alarm equipment from the nameplate and physical configuration.
- Brooks provides an MT3600 retrofit-options drawing for 3601 flanged and 3602 NPT-F arrangements, but it does not establish a one-for-one replacement for 3604EA1A5A1A.
- Do not assert interchangeability with MT3601, MT3602, MT3809, or MT3810 without an application-specific Brooks cross-reference.
Documentation Downloads
Local PDF copiesPart Photos
4 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 $810.00 to $810.00. Based on 2 archived listing records; not a current offer, appraisal, or confirmed sale price.
View archived listing titles
- BROOKS INSTRUMENT 3604EA1A5A1A NSNP