It is the best steam flowmeter and supports condition based maintenance (CBM) to help efficient and systematic plant operation. It offers stable and highly accurate measurement with less pressure loss and wider rangeability than differential pressure flowmeters, excellent self-diagnostic functions and serviceability. | Yokogawa Electric Corporation
| Model | VY □ □ □ (Integral Flowmeter, Remote Sensor), VY4A (Remote Transmitter) |
|---|---|
| Measurement Fluid | Liquid, Gas, Saturated Steam, Superheated Steam(Avoid multiphase flow and sticky or corrosive fluids) |
| Communication and Input/Output | HART 7 communication, 4 to 20 mA DC, Pulse / Status output, Analog inputFOUNDATION Fieldbus communicationModbus RTU communication, Pulse / Status output |
| Explosion Protected Type | IECEx Ex db / Ex ia, ATEX Ex db / Ex ia, FM Ex db / Ex ia, FMc Ex db / Ex ia, Japan Ex db, NEPSI Ex db / Ex ia, Korea Ex db / Ex ia, INMETRO (Brazil) Ex db / Ex ia |
| Conformity Standards | EMC, PED, EU RoHS, CE marking, NACE, Functional Safety (SIL2), NAMUR (NE21 / NE107), Marine Certificate (ABS, DNV) |
| Type of Body | Dual-Sensor (Welded) General Type |
| Type of Shedder Bar | General Type |
| Accuracy | Liquid |
| Gas, Steam | ± 1.0 % of reading (depends on the flow velocity) |
| Process Temperature | -196 °C to 450 °C |
| Max Process Pressure | ASME Class 900 |
| Ambient Temperature | -40 ( / -50 ) °C to 85 °C |
| Connection Size | Wafer |
| Flange | 15 to 200 mm |
| Degree of Protection | IP66 / IP67 |
| Type of Shedder Bar* | General Type, Long Neck Type[Combinationable Shedder bar] General Type with temperature sensor, Long Neck Type with temperature sensor, High Temperature Type, High Temperature Type with temperature sensor, Cryogenic Type |
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