Mechanical Flow Switch with Pointer/ up to 300℃

Mechanical flow switches are mainly installed in water, oil and other online or plug-in media pipelines. Sino-Inst’s mechanical flow switch can be customized to 300 degrees Celsius. Sino-Inst’s mechanical flow switch has a pointer display. The data is clearly visible. It allows users to understand the flow more intuitively.

Streamlined structure design
Durable
Magnetic coupling measurement system
Any installation direction
Various materials to choose from: stainless steel, brass, aluminum, plastic
Wide measurement range
High accuracy
Clear flow display scale
Easy to read
Rotating pointer
Division scale

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Mechanical Flow Switch Introduction

The mechanical flow switch is used to monitor the water flow in the water supply system. When the water flow is higher or lower than a certain set time point. The device will send an output alarm signal to the device. The system will make corresponding indication actions after receiving the signal. Therefore, it avoids or reduces the host’s “dry burning”.

FS series flow switch measurement principle: The mechanical flow switch uses a conical measuring tube and a measuring target. When the fluid passes along the conical tube, the measuring target is displaced according to the size of the flow. The displacement of the measuring target is balanced by the action of the elastic balancing force. It is transmitted to the indication system through the magnetic coupling system to achieve flow monitoring and control.

Mechanical Flow Switch 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 a transistor relay (intrinsically safe type)

Point Type:

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 be simply observed to determine 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.

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Sino-Inst’s mechanical flow switches support customization and OEM. Our mechanical flow switches can measure media above 300 degrees Celsius.
Sino-Inst has fast logistics. We have world-class service. If you have measurement-related questions. Please get in touch with us. We will answer them for you.

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Mechanical Flow Switch Applications

Unique streamlined structure design of the mechanical flow switch. Accurate and stable performance. The FS series flow switch is mainly used for liquid flow monitoring and switch output in pipelines. Its solid structure and stable performance can be widely used in cooling and lubrication systems of rolling mills, conveyors and other machines.

It is widely used in monitoring flow in pipelines and cooling and lubrication systems of large, medium and small equipment. For example: generator sets, motors, rolling mills, compressors, transmission systems, etc.

It can also be used for monitoring industrial forces such as oil fields, petroleum refining, chemicals, ethanol, pharmaceuticals, alchemy, power plants, papermaking, food, textiles, light industry, water treatment, industrial welding, etc.

More Detail

What is a Flow Switch in Fire Fighting?

A flow switch in a firefighting system is a device used to monitor water flow. It is an integral part of a firefighting system. It connects the fire extinguishing or sprinkler system of a building to the fire alarm system.

In firefighting systems, flow switches are widely used in places such as fire hydrants, sprinkler systems, water curtain walls, water tanks, and water supply pipes for fire extinguishers. Flow switches ensure the stability and automatic control of the water flow in the system.

How does a flow switch work?

The flow switch works by sensing the flow rate of water. When the flow rate exceeds the preset critical value, the flow switch will start quickly. Send an action signal to the fire pump control cabinet.

After receiving the signal, the relay in the control cabinet will start the fire pump to ensure a timely response to emergencies such as fires.

Is Electromagnetic Flow Switch/Meter the Same as Mechanical Flow Switch/Meter?

No, they are different.

Mechanical flow meter

A mechanical flow meter measures flow by directly driving mechanical components through the flow of fluid. Common mechanical flowmeters include:

Rotameter: uses the speed of the rotor rotating in the fluid to measure the flow rate, which is suitable for measuring small and medium flow rates.

Gear flowmeter: measures the flow rate by the rotation of the gear, which is suitable for measuring high-viscosity fluids.

The electromagnetic flowmeter is based on the Faraday electromagnetic induction principle and is suitable for measuring the flow rate of conductive liquids. Its advantage is that there are no moving parts and it is easy to maintain. It is suitable for measuring sewage, acid and alkali liquids, etc.