Flow Control
MR3A01SVVT
Brooks / Key Instruments 3000 Series 0.2–2.5 SCFH Air Variable-Area Purgemeter
About this part
MR3A01SVVT is a compact 3000 Series molded-polycarbonate variable-area purgemeter, currently cataloged by Key Instruments and historically sold under the Brooks name. This exact configuration has a 0.2–2.5 SCFH air scale, 1/8-inch FNPT 303 stainless-steel fittings, an inlet control valve, and Viton seals. Rated accuracy is ±4% of full scale; maximum pressure is 100 psig (6.9 bar), and maximum temperature is 150°F (65°C)
Configurations vary. Verify the exact unit before choosing a replacement.
No archived photo available
Key Facts
Specifications
| Series | 3000 Series (MR3000) |
| Meter type | Variable-area purgemeter |
| Scale and medium | Direct-reading SCFH-of-air scale |
| Flow range | 0.2 to 2.5 SCFH of air |
| Accuracy | ±4% of full scale |
| Body and tube | High-impact polycarbonate |
| Process connections | 1/8 in FNPT inlet and outlet |
| Fittings | 303 stainless steel |
| Valve | Inlet control valve |
| Seals | Viton fluoroelastomer |
| Maximum pressure | 100 psig (6.9 bar) |
| Maximum temperature | 150°F (65°C) |
| Operating orientation | Vertical |
What Does MR3A01SVVT Mean?
The published 3000 Series ordering structure separates the molded body, calibrated tube, fittings, valve, and seal options.
| Segment | Field | Interpretation |
|---|---|---|
| MR | Base model | Molded polycarbonate body and tube |
| 3A01 | Tube code | 0.2 to 2.5 SCFH air range |
| S | Fittings | Stainless steel; the exact catalog record specifies 303 stainless steel |
| V | Valve | Valve option; the exact catalog record specifies an inlet valve |
| VT | Seals | Viton fluoroelastomer with stainless-steel fittings |
Installation and Service Notes
- Install the meter vertically while minimizing external vibration and internal flow variation.
- Avoid restrictions at the inlet and outlet, and slowly purge trapped gas during startup.
- Read a ball float at its center or a bullet float at its reference groove, according to the installed float style.
- Use the supplied 10-32 mounting hardware at no more than 5 in-lb torque.
- Clean removable flow components with clean water and a soft brush; do not use solvents or strong bases.
Application Boundary
The 3A01 tube code establishes a direct-reading air scale. It does not establish suitability or calibrated accuracy for another process gas. The ordering code also does not identify the installed float material; verify the physical unit or manufacturer bill of materials before making material-compatibility decisions.
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 offerRecorded price context is shown when available. Based on 0 archived listing records; not a current offer, appraisal, or confirmed sale price.
View archived listing titles
- Brooks Variable Area Flow Meter 3A01, 0.2-2.5 SCFH Air - Unused