VFF Range-Flow Meters
Standard Flow Positive Displacement Meter
- 0-800 L/Hr covered by 2 internals: VFF4 and VFF8
- High Pressure Capability
- Accuracy: ± 1.0%
- Range of material options
The VFF range started in 1986 with the original VFF4 size rated to 4 litres per minute. The VFF8 has a rotor with twice the height and was therefore rated to 8 l/m. Subsequently materials have been improved and the new ratings increased to 400 and 800 litres per hour.
| General Specifications: | |
|---|---|
| VFF4 |
0-400 l/hr |
| VFF8 | 0-800 l/hr |
| Accuracy | ±1% of reading, requires linearisation. |
| Temperature rating | -40°C - +100°C dependent on material and instrument; higher temperature possible. |
| Pressure Rating | Dependent on Connection size and rating |
| Viscosity Range | 0.5 - 100,000 cP or greater. |
| Recommended Filtration | A 100 micron filter is advisable for 100% long life serviceability. |
| Key Features: | ||
|---|---|---|
| Compact |
Single Moving Part |
|
| No straight lengths | Large Viscosity range, from methanol upwards | |
| Very Low Flow Measurement | Measures pulsing flow accurately | |
| Tolerant of particulate up to 100+ microns | Preserves Molecular Integrity of fluid | |
| Low pressure drop (<0.1 bar typical) | Proven since 1986 | |
| Pressure independent measurement | Ultra High Pressure Capability (35,000psi, 2500bar if required) | |
| Low Maintenance | Highly Durable | |
Chemical Injection
Hydraulics
Wax Dispersant
Corrosion Inhbitor
Subsea Control fluid
PIB
Scale Inhibitor
Subsea flow
Ashalphtene Dispersant