Flow Control
1020CPP19F1AB
Brooks Instrument GT1000 Glass-Tube Variable-Area Flowmeter
About this part
Brooks Instrument 1020CPP19F1AB is a configured GT1000 industrial glass-tube variable-area flowmeter. The 1020 base model uses horizontal inlet and outlet connections, while its tapered metering tube operates vertically. The suffix represents application-specific selections; the exact range, scale, wetted materials, seals, connection details, accuracy option and alarm arrangement should be confirmed from the unit nameplate or Brooks order record
Configurations vary. Verify the exact unit before choosing a replacement.
No archived photo available
Key Facts
Specifications
| Manufacturer | Brooks Instrument |
| Configured identifier | 1020CPP19F1AB |
| Product family | GT1000 Series industrial glass-tube variable-area flowmeter |
| Base-model orientation | Model 1020: horizontal inlet and horizontal outlet |
| Measurement method | A float rises within a vertically mounted tapered glass tube until fluid and gravitational forces reach equilibrium; float position indicates flow rate |
| Standard flow accuracy | ±2% of full scale; Class 2.5 according to VDI/VDE |
| Optional flow accuracy | ±1% of full scale; Class 1.6 according to VDI/VDE |
| Repeatability | ≤0.5% of full scale |
| Ambient temperature range | 33 to 125°F (1 to 52°C) |
| Meter fluid-temperature range | 33 to 250°F (1 to 121°C) |
| Metering tube | Borosilicate glass |
| Window | Polycarbonate with ultraviolet inhibitor |
| Housing | Epoxy-painted cast aluminum |
| End-fitting options | Brass or 316/316L stainless steel (1.4404), depending on configuration |
| Connection options | NPT or BSPT/RC female threaded connections; ANSI B16.5 Class 150 raised-face flanges with stainless-steel fittings |
| O-ring options | Viton fluoroelastomer, Buna-N, Kalrez perfluoroelastomer or EPDM, subject to body-material restrictions |
| Alarm technologies | Inductive alarms for meter sizes 2 and 6; reed-switch alarms for sizes 7 through 13 |
| Required meter alignment | Mount within 6 degrees of true vertical, with the metering-tube inlet at the bottom and outlet at the top |
Configuration interpretation
The base-model segment can be interpreted from Brooks documentation, but the complete configured suffix is not reproduced in the available manufacturer literature.
Installation and glass-tube safety
GT1000 installation and service must account for the glass metering tube and configuration-specific pressure limits.
- Keep the metering tube vertical and initiate flow slowly to avoid pressure and flow surges.
- Do not operate above the configured pressure or temperature limits and do not service the meter while pressurized.
- For liquid service, drain an isolated meter to prevent thermal expansion from rupturing the device.
- Where fitted on meter sizes 7 through 13, the protective tube sleeve must remain installed and the meter windows must be secured.
Replacement and retrofit relationship
Brooks identifies the GT1600 Series as the replacement family for GT1000 meters and offers configurations intended to retrofit existing GT1000 installations. Retrofit selection remains configuration-dependent; the full 1020CPP19F1AB process connection, range, materials and alarm requirements must be matched before substitution.
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 $2,550.00 to $2,550.00. Based on 1 archived listing record; not a current offer, appraisal, or confirmed sale price.
View archived listing titles
- Brooks Instrument Variable Area 42 gpm Flow Meter w/GT 1000 Alarm 1020CPP19F1AB