MAGNETIC FLOAT LEVEL SWITCHES

The single unit or multiple reed switch units are housed tightly in stainless steel or engineering plastic stem, and the permanent magnet is sealed into the middle of the specified float ball(s). You can mount the float ball to penetrate through the stem, and then the liquid buoyancy will deliver the float ball up and down at the specified position by graduating rings. When the float internal magnet approaches the reed switch, it will actuate the reed switch contact point to create an open or close circuit. We can apply such on-off output signals to reach liquid level controlling and monitoring purpose. The figures below show the float orientations on N.O. (Normal Open) and N.C. (Normal Close).

*Ex-proof terminal available

SIDE MOUNTING MAGNETIC FLOAT
SWITCHES

Simple theory as liquid buoyancy is utilized for the main principle of this "FF" series. A change of liquid level correspondingly travels the float to extreme levels up and down. The reed switch is thus "NC" and "NO" exchanged as well as the permanent magnet on pivot will have mutual repellence to the other one inside on the housing for like poles, which the Micro-switch is button-pushed by magnet to state "NO" and "NC" exchanging likewise.

MINI MAGNETIC FLOAT SWITCHES

When the magnetic field of permanent magnet inside the float is moved into the proximity of the reed switch inside the stationary stem, the reed switch "snaps" the contact together and closes the electrical circuit. When the magnetic field is moved away from the reed switch, the reed switch does not touch. The circuit is opened.

PADDLE TYPE FLOW SWITCHES

Flow Switch utilizes the force of liquid flow to propel its paddle in order to detect the incoming flow or moving of the existing liquid in pipe. In condition of static liquid or no liquid, the spring expands and presses the magnet downward vertically. Reed switch contact is N.O.
As flow occurs and the paddle is thrusted and raised at an upward angle of 20°~30° (or more), the eccentric of paddle will push the magnet upward to actuate the reed switch which is thus in a close circuit. The length of paddle can be adjusted with the diameter of a pipe.

*Ex-proof terminal available