Sparing, VFF
Spares for VFF Rotary Piston Flowmeters
Provide a serial or project number, and we can locate the spares code for any VFF meter. Sometimes, just a tag number is sufficient. Sizes range from LF03, LF05, LF15, MF30, VFF4, VFF8, to HF20 and bigger. We can locate old or new designs that might be particularly special and seemingly unavailable.
An original calibration certificate provides the flow range and meter performance and clues to the mechanical and electrical parts. Most had replacement rotors or pressure-balanced chambers.
Positive Measurement can provide sensors that replace or improve on the original.
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Replacement parts for VFFs
The VFF was modular, and a significant benefit is that it can be upgraded. This might include higher or lower flow ranges, improved accuracy, or materials. By using different instrumentation, the Hazardous Area specification can be altered from Exi to Exd or vice versa. This is particularly useful when a meter is repurposed.
When flow rates change over time, the ability to recalibrate the PBC or replace it extends the life of the meter, its instrumentation, and its cabling. The PBC can be returned for refurbishment or calibration. it can be replaced with a new internals.
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Typical spares codes
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