digitalYEWFLO Vortex Flowmeter Standard Type can measure flow rate of liquid, gas and steam.
A simple and robust structure with no moving parts provides high reliability and durability, and supports a wide range of applications.

Can Be Used in a Wide Range of Applications

It can measure the flow rate of liquid, gas and steam.
Installation at piping is easy because there are only two upstream and downstream connections.
The sensor detects frequency, and at zero flow rate it outputs frequency zero. Therefore, no zero adjustment is required.

Durability

Durability through simple design and construction.

Specifications / Functions

Refer to the General Specification sheet located under the Downloads tab for detailed specifications.

digitalYEWFLO Vortex flowmeter Reduced Bore Type is a vortex flowmeter in which the main body of the vortex flowmeter and the reducer (reduction pipe and expansion pipe) are integrated into a casting.
Suitable for lines with large fluctuations in flow rate depending on the season, such as steam supply lines.
Since the reducer and the vortex flowmeter are integrated, it is not necessary to prepare a reducer and a short pipe for securing the straight pipe length.
This not only simplifies installation and reduces costs, but also improves safety by reducing the number of connection points.

Realize Simple Instrumentation

As an example of a vortex flowmeter application, a reducer may be used to measure low flow.
In this case, as shown in the figure below, it is necessary not only to connect the reduction pipe and the expansion pipe, but also to connect short pipes to secure the straight pipe length upstream and downstream respectively. As a result, not only is the installation process complicated and difficult, but also the installation cost increases. Furthermore, with six connections, the risk of fluid leakage increases.

The Reduced Bore Type has a concentric reducer. Therefore, there is no need to install not only the reduction pipe and the expansion pipe, but also the short pipe for securing the straight pipe length.
Furthermore, the reduced number of connections brings reducing the risk of fluid leakage and installation costs.
The measurement lower limit value is expanded by 2 to 3 times, and a low flow rate can be measured with a pipe diameter size flowmeter.

The line that used to change the two orifice plates according to the amount of flow fluctuation has no need to be changed by installing the Reduced Bore Type.
For lines that require yearly or long-term flow control, there is no need to stop the line when making changes. In addition to the high-temperature and high-pressure fluid that Vortex Flowmeter is originally good at, the vibration resistance and self-diagnosis function using the SSP function unique to digitalYEWFLO Vortex Flowmeter, the quality of flow control is upgraded using various functions.

Two Lineups

The Reduced Bore Type is available in two reducer specifications (/R1 and /R2) so that it can be used depending on the application.
The nominal diameter of the detection part is reduced by 1 size down for /R1 and 2 sizes down for /R2 compared to the nominal diameter of flange piping.
The relationship between the nominal diameter of the flange piping and the nominal diameter of the detector is shown below.

The Reduced Bore Type contributes to stable flow measurement at low flow rates that are difficult to measure with standard types.
An example of the measurable flow rate range is shown below for the standard type and two reducer specifications.

In the standard type, the measurable flow rate range is 74 to 1,876 kg/h, which is ideal when the flow rate range to be measured is wide.
If you want to measure a low flow below 74 kg/h, the Reduced bore type R2 is suitable.
In addition, if you want to measure flow as wide as standard type as well as low flow rate area under 74 kg/h, Reduced bore type R1 specification is suitable.

Combination with Multi-Variable Type Possible

The Reduced Bore Type can be combined with the Multi-Variable Type.
The combination with the Multi-Variable Type enables temperature measurement and temperature correction for low flow rate.
Even at low flow rates, the mass flow rate of saturated steam can be directly output with one unit.

Combination with High Temperature Version Is Possible

The Reduced Bore Type can be combined with high temperature version.
The combination with high temperature version extends the upper limit of applicable fluid temperature from the usual 250 °C to 450 °C.
Even at low flow rates, it is possible to measure the flow rate of high temperature fluid.

Durability

Durability through simple design and construction.

Specifications / Functions

Refer to the General Specification sheet located under the Downloads tab for detailed specifications.