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Float level switch
● Can be used for closed tanks
● The contact material of the magnetic reed switch is rhodium (with a rhodium oxide coating), and the contact life can reach 2 million times.
● The special treatment of the magnetic reed switch allows it to operate normally at high temperatures of 200℃.
● Multi-point control can be achieved, and the position of each control point can be customized according to customer needs.
● All switch outputs are concentrated in the junction box, making construction simple and convenient, reducing wiring costs.
● The protection level of the junction box is above IP65, and intrinsic safety explosion-proof and flameproof junction boxes can be configured as needed.
● Overall performance is reliable. Materials such as SUS304, SUS316L, PP, PVDF, PTFE, etc. are available for selection.
● Length can be customized as needed (Lmax≤5m)
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Product Description
Product Overview Product overview
This series of float level switches is used to detect one or more limit position points in the liquid level. They are not affected by foam, conductivity, dielectric constant, pressure, vacuum, temperature, steam, condensation, boiling effects, and vibration during operation, making them suitable for almost all liquid media. The switch action is non-contact, wear-free, and does not require power. The working principle of the float switch is simple and has been proven in practice, suitable for various applications from general industrial applications to process devices. It is widely used in industries such as chemical, metallurgy, water conservancy, pharmaceuticals, and petroleum.
Product Principle THE PRODUCT PRINCIPLE
A magnetic reed switch is usually set at a required point inside a sealed non-magnetic metal or plastic tube, and a hollow float with a ring magnet inside is fixed at the position related to the magnetic reed switch on the rod diameter. The float has a specific gravity less than the liquid density, allowing the liquid to make the float oscillate up and down within a certain range, using the magnet inside the float to attract the magnetic reed switch to close, generating a switch action to control the liquid level. Normally open and normally closed are the states when no liquid is injected.
Float Specifications Specifications
| Float | Model | Size A*B*C (mm) | Material | Density g/cm3 | Temperature Resistance ℃ | Pressure Resistance bar |
 |
S1 | 28*28*9.5 | SUS316L | 0.8 | 200 | 10 |
| S2 | 38*26.5*9.5 | SUS316L | 0.7 | 200 | 12 | |
| S3 | 45*55*15 | SUS316L | 0.65 | 200 | 15 | |
 |
S4 | 52*52*15 | SUS316L | 0.55 | 200 | 30 |
| S5 | 75*75*23 | SUS304 | 0.7 | 200 | 64 | |
 |
P1 | 26*18*10 | PP | 0.8 | 80 | 4 |
| P2 | 48*50*20 | PP | 0.8 | 80 | 4 | |
| F1 | 55*70*23 | PVDF | 0.9 | 150 | 3 |
External Dimensions Size
Selection Help Selection
Parameters required for selecting float level switches: 1. Pressure, temperature, and density of the medium; 2. Side installation or top installation; 3. High limit and low limit alarms, determine alarm positions; 4. Individual alarm points; 5. Opening size, choose float size (also consider the medium density comprehensively); 6. Connection form (flange or thread); 7. Consider viscosity and corrosion.
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Tianjin Ling Yu Technology Co., Ltd.
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