Place of Origin:
China
Brand Name:
KACISE
Certification:
ISO / CE / Explosion-proof
Model Number:
KVF Series
Karman vortex flowmeter, which is widely used in industry, is a kind of flowmeter made by using the phenomenon of Carmen vortex. When the vortex generator is vertically inserted into the fluid, Karman vortex street will be formed when the fluid bypades the generator. Under certain conditions, the asymmetric vortex train can remain stable. In this case, the frequency f of the vortex is directly proportional to v of the flow rate of the fluid, and inversely proportional to d of the front width of the vortex generator.
KVF flowmeter is a Karman vortex flowmeter using the principle of Carmen vortex flowmeter, can be used for air, oxygen, gas, natural gas, and other chemical gas measurement. The product adopted advanced differential technique, together with measurement of isolating, shielding and filtering, it had possesses better anti-vibration performance and signal stability. It is characterized by small pressure loss, large range, high precision, almost unaffected by fluid density, pressure, temperature, viscosity and other parameters when measuring volume flow in working conditions. No moving mechanical parts, so high reliability, small maintenance. Instrument parameters can be stable for a long time.
| Pipe Diameter | DN15~DN1800 |
| Meter Materials | 1Cr18Ni9Ti |
| Nominal pressure (Mpa) | 1.6Mpa; 2.5Mpa; 4.0Mpa |
| Measured medium temperature (℃) | -40~+250℃; -40~+350℃ |
| Environmental conditions | Temperature:-10~+55℃, humidity 5%~90%, pressure: 86~106Kpa |
| Accuracy class | liquid: reading ±0.5 |
| Measuring gas or steam: | reading±1.0,±1.5 |
| Turndown ratio | 1:10;1:15 |
| Pressure loss coefficient | Cd<2.6 |
| Output signal | 4-20mA or Pulse |
| Power supply | sensor: +12VDC, +24VDC |
| Signal transmission lines | STVPV3×0.3(three-wire), 2×0.3(two- wire) |
| Installation | Integrated clamping flange or flange connection |
| Transmission distance | ≤500m |
| Signal line interface | Male threadM20×1.5 |
| Explosion levels | ExdIIBT6 |
| Protection class | IP65 |
| Allow vibration acceleration | 1.0g |
| KVF | Parameters | ||||||||||
| Nominal diameter | DNXX | DN15~DN1800 (mm) | |||||||||
| Structure | F | Remote type with display | |||||||||
| Y | Compact type with display | ||||||||||
| Accuracy | A | Pipe type: Class 1.0 | |||||||||
| B | Insertion type: Class 2.5 | ||||||||||
| Nominal pressure | 16 | 1.6Mpa | |||||||||
| XX | Customization | ||||||||||
| Max. temp. of medium | M | <250℃ | |||||||||
| H | >250℃ | ||||||||||
| Other function | P | With pressure compensation | |||||||||
| T | With temperature compensation | ||||||||||
| PT | With pressure and temperature compensation | ||||||||||
| Power | 1 | 12~28VDC | |||||||||
| 2 | 85~265VAC (Remote display) | ||||||||||
| 3 | 3.6V lithium battery (on site display) | ||||||||||
| Output | A | 4-20mA | |||||||||
| M | Voltage pulse | ||||||||||
| H | HART | ||||||||||
| R1 | RS232 | ||||||||||
| R2 | RS485 | ||||||||||
| Installation | 1 | Flange | |||||||||
| 2 | Clamp flange | ||||||||||
| 3 | Insertion | ||||||||||
| 4 | Thread | ||||||||||
| 5 | Clamp | ||||||||||
| Explosion proof | A | No explosion proof | |||||||||
| B | Intrinsic explosion proof | ||||||||||
| G | Flame proof | ||||||||||
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