KF600 Orifice Flow Meter
KF600 Orifice Flow Meter
KF600 bypass orifice plate flow meter with an integrated orifice plate and a parallel glass-tube float indicator, available in AT threaded, AF flanged, AC clamp and AD separated connection types from DN10 to DN500.
Specifications
- Series
- KF600 orifice plate flow meter
- Measuring Principle
- Bypass (shunt) differential-pressure type: integrated orifice plate with a parallel glass-tube float indicator
- Connection Types
- AT threaded; AF flanged; AC clamp (wafer); AD separated / remote
- Nominal Sizes
- DN10 to DN500
- Measuring Tube Material
- PVC (0-60 °C) or SS304 (0-120 °C)
- Medium
- Water (m³/h) or air (Nm³/h)
- Accuracy
- ±3%
- Working Pressure
- ≤ 1.0 MPa
- Water Flow Range
- 0.1-0.5 m³/h (DN10) to 500-2500 m³/h (DN500)
- Air Flow Range
- 0.8-4 Nm³/h (DN10) to 5000-24000 Nm³/h (DN500)
- Straight Pipe Requirement
- Upstream 10D (90° elbow) or 12D (fully open valve); downstream 5D
- Installation
- Installation direction can be changed on site (bottom-top, left-right, right-left, top-bottom)
How the KF600 Measures Flow
The KF600 is a bypass (shunt) differential-pressure flow meter. An orifice plate is built into the main pipe, and a glass-tube float flow meter is installed in a parallel bypass. The pressure difference produced across the main orifice plate is proportional to the flow, and the bypass flow equals the main-pipe flow, so the main-pipe flow is read directly from the glass-tube float indicator.
Because the reading comes from a bypass glass-tube float indicator, the KF600 is not a conventional high-accuracy differential-pressure transmitter style orifice meter. Its catalogue accuracy is ±3% of the float indicator scale.
Connection Types and Materials
Four connection types share the same principle: AT threaded, AF flanged, AC clamp (wafer) and AD separated (remote) type. The measuring tube material is PVC for 0-60 °C service or SS304 for 0-120 °C service.
The AT threaded body uses a compact measuring tube; the AC clamp type mounts between flanges; the AF flanged type uses a flanged measuring tube; the AD type separates the indicator from the measuring tube for remote reading.
Ranges and Installation
Nominal sizes run from DN10 to DN500. Water ranges span 0.1-0.5 m³/h at DN10 up to 500-2500 m³/h at DN500, and air ranges span 0.8-4 Nm³/h up to 5000-24000 Nm³/h. Working pressure is up to 1.0 MPa.
For accurate measurement, allow an upstream straight run of 10D after a 90° elbow (12D after a fully open valve) and a downstream run of 5D. The installation orientation can be changed on site, which makes it easy to set the flow direction in place.
Ordering Guidance
Provide the medium (water or air), the flow range, the pipe size (DN) and the required connection type (AT, AF, AC or AD), together with the working pressure and temperature, to confirm the KF600 configuration.