Target flow switch, also known as “baffle flow switch”, is a plug-in installation, mechanical flow switch with a built-in micro-trigger switch. The switch signal is output through the fluid flow in the pipeline to the blade swing deflection action.
SI-01B target flow switch can be used in water cooling system or lubricating oil system as a flow controller or alarm protection. It can also be used to detect and observe the relay of liquid flow. The setting value is adjustable and the user can adjust it according to the needs.
Features
| Model | Features |
| 01BSb | Joints, target rods (made of brass), plastic parts (flame-retardant ABS), and other parts are all made of 304 stainless steel (no electroplating parts) |
| 01BSH | |
| 01BSS | The connector, target rod, and bellows are all made of stainless steel (SS316, SS304), plastic parts (flame retardant ABS) (no electroplating parts) |
| 01BSO | The connector, target rod (made of brass), plastic parts (flame retardant ABS), and other parts are all made of 304 stainless steel (no electroplating parts) (electrical parts are Japanese OMRON) |
| 01BSN | The connector (reinforced engineering plastic), target rod (made of brass), plastic parts (flame retardant ABS), and other parts are all made of 304 stainless steel |
SI-01B target flow switch technical parameters
- Interface: 1/2”, 3/4”, 1”
- Adjustment range: 20~1800L/min
- Withstand pressure: 1.6MPa
- Medium temperature: 0℃~90℃
- Ambient temperature: -40℃~60℃
- Contact capacity: A.C.250V 10A (resistive) one pair of switching contacts (normally open and normally closed)
Electrical parameters:
| (A) | Non-induced current | Induced current | |
| Rated voltage (V) | Full load current | Instantaneous current | |
| A.C.110 | 10 | 10 | 30 |
| A.C.220 | 8 | 8 | 48 |
| Pipe and target matching | Flow adjustment range L/min | Switching error | Repeatability error | |
| Pipe diameter | Target Number | |||
| 1″ | 1# | 20~48 | 8 | 1.1 |
| 1 1/4″ | 1# | 34~100 | 10 | 2.6 |
| 1 1/2″ | 1# | 65~160 | 14 | 3.8 |
| 2″ | 1# | 120~280 | 26 | 6.4 |
| 2 1/2″ | 1# | 210~550 | 18 | |
| 3″ | 1# | 380~750 | 20 | |
| 2″ | 2# | 40~140 | 18 | 4 |
| 2 1/2″ | 2# | 110~340 | 15 | |
| 3 | 2# | 180~470 | 18 | |
| 4″ | 2# | 350~920 | 20 | |
| 3″ | 3# | 115~220 | 20 | |
| 4″ | 3# | 210~590 | 20 | |
| 5″ | 3# | 380~1200 | 40 | |
| 6″ | 3# | 550~1800 | 80 | |
| Connection size (inch thread) | Shell | Use medium | Materials in contact with the medium |
| 1/2″ | Flame retardant ABS protective cover | Water or other non-corrosive liquids | Copper |
| 3/4″ | |||
| 1″ | |||
| 1/2″ | With corrosive liquid | Corrosion-resistant stainless steel | |
| 3/4″ | |||
| 1″ |
SI-01B Target Flow Switch Installation and Adjustment
- Open the flow switch housing;
- The switch is factory-set to approximately the minimum flow value. Increase the flow setting value and turn the adjustment screw clockwise①;
- Press the target to check whether the micro switch is working properly. Excessive counterclockwise rotation of the adjustment screw may cause the flow switch to fail;
- After installation, check by pressing the flow switch lever several times. Once it is found that there is no “click” sound when the lever returns, turn the adjustment screw forward until there is a “click” sound when it returns;
- It is forbidden to remove the screw fixing clip②, otherwise it will cause the flow adjustment screw to fail;
- The paint-sealed adjustment screw③ is only for factory adjustment of the flow switch state, please do not change or adjust;
- Three working cycles should be observed to confirm that the switch and its connection are operating normally. And cover the switch housing in time.
Working principle of the target flow switch
The target flow switch is a device used to detect the flow velocity or flow rate of fluid in a pipeline. Its working principle is based on fluid mechanics and electronic control technology.
The working principle of the target flow switch is based on the internal float (target) and magnetic sensor. When the fluid passes through the pipeline, the flow velocity increases, causing the float to rise. The magnetic sensor detects the float position and converts it into an electrical signal. The electrical signal is sent to the control unit. It is used to compare the difference with the preset flow threshold. Once the measured value exceeds the threshold, the flow switch triggers the corresponding action. Such as cutting off the fluid supply or issuing an alarm signal.
More Flow Switches
SI-01B target flow switch can be used to detect unidirectional or bidirectional flow of air, oil and water. There should be no entangled debris in the medium. The setting value is adjustable and users can adjust it according to their needs.
It is generally used in air conditioning and water supply equipment to sense the flow change of liquid flowing through the pipeline. Such as water, ethylene, ethylene glycol or other non-hazardous liquids. Its typical application is in places where chain effect or “break” protection is required.
Sino-Inst produces and supplies various types of flow meters and flow switches. Including target flow switches, explosion-proof flow switches, thermal flow switches, etc. If you need to purchase target flow switches, or have related technical questions, please feel free to contact us.