The SI-FS mechanical flow switch has a pointer display and uses a conical measuring tube and measuring target for liquid flow monitoring and switch output in pipelines. This structure not only ensures that the fluid can pass through the switch smoothly and reduce resistance, but also reduces the measurement error caused by fluid dynamics. Customizable high temperature type 300℃.
Features
- Streamlined structural design, sturdy and durable;
- Magnetic coupling measurement system;
- Any installation direction, vertical or horizontal installation;
- Multiple material options;
- Wide measurement range;
- Clear flow display scale, easy to read, rotating pointer, graduation scale;
SI-FS Mechanical Flow Switch Technical Parameters
| Diameter | DN15~DN250 |
| Accuracy | 12% |
| Repeatability | ±2.5% |
| Pressure level | 0.6~4.0MPa (high pressure optional) |
| Temperature | Standard type 85℃, high temperature type 300℃ |
| Signal output | Alarm point output can be used with transistor relay (intrinsically safe type) |
SI-FS Mechanical Flow Switch Types
FS-1
- Suitable for horizontal and vertical pipe installation
- Pipe thread connection 3/4″ to 2″
- Selectable type I or II indicator
- 1 or 2 flow switch points
- Z-type measuring system
- Flow range see flow table
FS-2
- For horizontal and vertical pipe installation
- Flange connection DN15 to DN50 (1/2″ to 2″)
- Selectable type I or II indicator
- 1 or 2 flow switch points
- Z-type measuring system
- Flow range see flow table
FS-3
- Suitable for horizontal and vertical pipe installation
- Flange connection DN65 to DN200 (3″ to 8″)
- Selectable type I or II indicator
- 1 or 2 flow switch points
- Type B measuring system
- Flow range see flow table
FS-4
- Suitable for installation in horizontal pipes (DN>250,10″)
- Flange connection DN150 PN1.6
- Type II indicator
- 1 or 2 flow switch points
- Type B measurement system
- Flow range see flow table
Mechanical indicator types
FS-1~3 flow switches can be composed of type I or type II indicators. The circular dial and pointer corresponding to the measuring range, which are divided into l/h, l/min, m3/h, etc., can easily observe the flow rate; at the same time, this type of flow switch can also easily adjust the switch alarm point without interrupting the flow in the pipeline.
The basic type of FS-4 flow switch consists of type II indicators; the dial corresponding to the measuring range 1/10 division can simply observe the flow rate; at the same time, this type of flow switch can easily adjust the switch alarm point without interrupting the flow in the pipeline.
More Flow Switches
Sino-Inst SI-FS mechanical flow switch can monitor and control various liquid flows. The unique streamlined structure design and accurate and stable performance of the flow switch are widely used in pipeline flow monitoring and cooling and lubrication systems of various large, medium and small equipment.
For example: generator sets, motors, rolling mills, compressors, transmission systems, etc. When the flow exceeds the preset switch point you set, it can output a control signal. This preset switch point can be set at any position in the range, and the switch point can also be easily adjusted under the conditions after installation.
If you need to purchase a mechanical flow switch, or have related technical questions, please feel free to contact our sales engineer!