Low-Flow Measurement Selection for Yokogawa RAKD41-G4SS-31VSE-T80NNN/K8/KS1
Yokogawa RAKD41-G4SS-31VSE-T80NNN/K8/KS1 is a compact metal variable-area meter in the RAKD family. A rotameter scale is tied to the specified fluid properties and reference conditions; therefore, a range printed for one gas or liquid should not be applied to another without verification. For RAKD41-G4SS-31VSE-T80NNN/K8/KS1, specify fluid, density or relative density, viscosity where relevant, normal and maximum flow, pressure and temperature.
Specification snapshot
| Selection point | Specification / confirmation |
|---|---|
| Representative model | RAKD41-G4SS-31VSE-T80NNN/K8/KS1 |
| Meter type | Small metal variable-area flowmeter (rotameter) |
| Size | RAKD41 size 1/4 inch family |
| Principle | Float position in a tapered measuring tube indicates flow |
| Service | Select for compatible liquid or gas, range and process conditions |
| Confirm | Medium, scale, units, pressure, temperature and connections |
Installation and reading orientation
The variable-area principle uses a float moving within a tapered measuring passage, with flow read at the designated float reference. Install RAKD41-G4SS-31VSE-T80NNN/K8/KS1 in the orientation and direction required by its datasheet, provide enough straight and stable piping for the application, and keep the local scale visible to the operator. Avoid assuming that compact size alone determines the appropriate process connection or scale range.
Materials and process interface
Small metal tube meters may be used in service where a robust compact flow indication is required, but wetted materials and pressure/temperature limits must fit the process. For RAKD41-G4SS-31VSE-T80NNN/K8/KS1, review body and connection materials, seal compatibility, allowable operating conditions and any electrical output options shown in the full code. Consider whether the measurement is for indication, local monitoring or a control loop, as this affects the needed signal arrangement.
Compare the RAKD41 order codes
The related RAKD41 strings below represent other configurations in the same product family. Treat them as alternatives for review, not as equivalent ranges. Before ordering RAKD41-G4SS-31VSE-T80NNN/K8/KS1, send the model plate for RAKD41-G4SS-31VSE-T80NNN/K8/KS1, fluid, flow units and range, line size, operating conditions and connection details so the scale and build can be checked against the real duty.
Related model configurations
- RAKD41-G6SS-31VSE-T80NNN/A29/BG/K1/KS1
- RAKD41-T4SS -51VPE -T8ONNN/KC1/P3/P6
- RAKD41-T4SS- 34VPA -T8ONNN/KC1/P3/P6
- RAKD41-T6SS-31VPA-T80NNN
Information for model verification
For RAKD41-G4SS-31VSE-T80NNN/K8/KS1, include the complete nameplate code, application, interface and operating conditions in an enquiry. Retain RAKD41-G4SS-31VSE-T80NNN/K8/KS1 with the equipment record and verify the exact specification before replacement or project release. Record the exact model code RAKD41-G4SS-31VSE-T80NNN/K8/KS1 in the purchase request.
