Japan, Tokyo Keiso
Tokyo Keiso VNT Series Water-cone Flowmeter
Made in Japan
Manufacturer: Tokyo Keiso
Model: VNT
VNT series is the transmitter integrated type Wafer-Cone® differential pressure flowmeter; VH series Wafer-Cone® flowmeter and precision transmitter are integrated into one flowmeter. Its principle is based on the Bernoulli’s theorem like orifice flowmeter. The V-cone inside pipe throttles flow and generates differential pressure corresponding flow rate. The precision cast body made in lost wax process has a simple and rigid construction. Succeeding various features of V-cone flowmeter, it realized low cost flow measurement. It measures liquids, gases and saturated steam with high temperature.
Features
- Easy installation with wafer construction
- Direct mounting of compact differential transmitter requires no impulse piping
- Measuring liquids, gases and steam
- Less than 1/5 of orifice straight runs
- Stable differential pressure at low flow rate
- Stable low differential pressure measurement allows wide rangeability
- Stable low differential pressure measurement allows low pressure loss
- Durable structure against wear or adhesion and maintenance free with stable operation
Applications
- Steam and water flow management
- Flue gas flow management
- HVAC(Heating ,ventilation and Air conditioning) system
- Water treatment facilities
- Refuse incinerator plants
- Co-generation plants
Specifications
Measuring Fluids | Liquids, Gases, Saturated steam |
---|---|
Connection (Meter) Size |
25, 40, 50, 65, 80, 100 mm |
Connection | Wafer |
Connection Rating | JIS10K/20K, ANSI150/300, DIN PN16/40, GB PN1.6/4.0 |
Fluid Temperature | Liquids: Max.120 C Gases: Max.120 C Saturated steam: Max.204.3 C |
Fluid Pressure | Liquids: Max.2 MPa Gases: Less than 1MPa Saturated steam: Max.1.6MPa |
Flow Range |
|
Indication Accuracy | ±1.0% to 1.5% F.S. |
Guaranteed Accuracy Range |
Max. Rangeability: 14:1 |
Materials |
|
V-Cone β Ratio | 0.45, 0.50, 0.55, 0.60, 0.65, 0.70, 0.75, 0.80 8 kinds |
Flow Direction | Horizontal |
Power Supply | 24 VDC±10% |
Indication | 6 digit LCD with back light, for instantaneous flow rate or totalizing flow indication (change-over by manual or automatic) |
Current Output | 4 to 20 mA (2-wire), output accuracy: ±0.5%F.S. at 23°C |
Pulse Output | Open collector |
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