Baffle type flow switch NFS22

Main Features

The NFS22 baffle flow switch is a new type of structural flow switch developed by our company’s researchers specializing in flow meters and differential pressure gauges to address the shortcomings of current flow switches in the market.

It follows the design concept of simplicity and reliability, greatly improving the reliability of the flow switch structurally and comparable to non-traditional target flow switches. This flow switch adopts a plug and play mechanical structure, with a built-in micro trigger switch, which has the advantages of low pressure loss, good repeatability, and strong anti pollution ability. It can be precisely set through a knob.

The mechanical and electronic parts are completely isolated. This product does not contain corrugated pipes that are prone to malfunction. Electrical components do not come into direct contact with metal parts with large temperature differences, so there is no problem of condensation and corrosion caused by electrical components.

It offers multiple types for customers to choose from to adapt to different applications. The use of imported micro switches as electrical components completely avoids the problem of damage caused by improper operation of magnetic switches through high current, making it the preferred flow protection product in the fields of central air conditioning and industrial fluid control.

Product Application

Gas liquid dual-use, can be widely used in industrial automation/mechanical equipment/air compression industry/refrigeration and air conditioning field. The flow switch magnet is not located in the flowing waterway and can be used in the sewage system to operate normally.

Technical Specifications

• Voltage: When there is no status indicator light, the maximum voltage can reach
• 250VAC； When equipped with a status indicator light, the voltage is 24VDC ± 10%.
•  Maximum current (switch capacity): 5A.
• Connection method: DIN 43650A connector/optional direct wiring.
• Output: SPDT micro switch, single/dual point output Select, optional with status indicator light.
•  Pressure resistance: 25bar (higher pressure can be customized).
• Average pressure drop: 0.01 bar (maximum flow rate).
•  Working temperature: -10… 80 ℃.
• Shell protection level: IP65.
• Material: Liquid shell: Nickel plated brass;
• Shield: stainless steel;
• Sealing element: NBR;
• Electrical casing: ABS.

Dimensional drawing (in millimeters)

Selection Table