Flow Control
1020CZ150
Brooks Glass-Tube Variable-Area Flowmeter
About this part
1020CZ150 is a Brooks legacy glass-tube variable-area flowmeter identifier associated with the GT1000/GT1020 family. The 1020 base denotes horizontal inlet and outlet orientation. The suffix form CZ150 is not represented as a complete configuration in Brooks’ current GT1000 model-code table; calibrated range, tube and float combination, wetted materials, seals, process connection, scale, alarm and accuracy option therefore remain unit-specific nameplate or order-record attributes
Configurations vary. Verify the exact unit before choosing a replacement.
Key Facts
Specifications
| Manufacturer | Brooks Instrument |
| Part identifier | 1020CZ150 |
| Associated product family | GT1000 / GT1020 |
| Manufacturer status | Legacy product family |
| Instrument type | Glass-tube variable-area flowmeter (rotameter) |
| Measured media | Liquids or gases; calibration and scale are configuration-specific |
| Base-model connection orientation | Horizontal inlet and horizontal outlet (1020 base designation) |
| Measurement principle | Float operating in a tapered glass tube; float position indicates flow through the varying annular area |
| Metering tube | Borosilicate glass |
| Flow accuracy | Standard ±2% of full scale; optional ±1% of full scale, depending on ordered configuration |
| Repeatability | ≤0.5% of full scale |
| Ambient temperature limits | 33 to 125 °F (1 to 52 °C) |
| Operating-fluid temperature limits | 33 to 250 °F (1 to 121 °C) |
| End-fitting options | Brass or 316/316L stainless steel; exact 1020CZ150 option not established |
| Seal options | Viton fluoroelastomer, Buna-N, Kalrez perfluoroelastomer or EPDM; exact 1020CZ150 option not established |
| Process-connection options | NPT or RC/BSP female threads, or ANSI Class 150 raised-face flanges; exact 1020CZ150 connection not established |
| Scale options | Single or dual detachable scale; direct-reading, millimeter or percentage graduations; exact scale and calibration not established |
Identifier interpretation
The identifier establishes the product type and base orientation but does not support decoding every configured attribute.
Replacement relationship
Brooks classifies the GT1000 as a legacy glass-tube variable-area flowmeter and identifies the GT1600 as its replacement product family. The GT1600 can be configured to retrofit GT1000 installations, but compatibility is not universal: the original tube size, connection type and size, orientation, dimensions, materials and calibrated flow duty must be matched before substitution.
Safety and service notes
- Do not exceed the pressure or temperature limits applicable to the meter’s tube size and connection configuration.
- Open process valves slowly and avoid pressure or flow surges; glass-tube failure can cause injury or equipment damage.
- Depressurize the process line before service or repair.
- Drain liquid-flow devices completely before isolating both adjacent valves; trapped-liquid thermal expansion can rupture the instrument.
- Keep protective components and meter windows correctly installed, and use manufacturer-specified replacement parts.
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 $250.00 to $250.00. Based on 1 archived listing record; not a current offer, appraisal, or confirmed sale price.
View archived listing titles
- BROOKS 1020CZ150 FLOW METER NSNP