Vertical Switches

Stainless Steel High Pressure Float Switch - FS20

Full Size Stainless Steel Float Switch - FS21

Oil / Water Float Level Switch - FS22

Miniature Stainless Steel NPT Float Level Switches - FS10

Miniature Stainless Steel Bulk Head Float Switch - FS11

Miniature Plastic Float Switches - FS12

Economy Plastic Float Switches - FS01

Horizontal Switches

Plastic Side Mounted Float Switches - FH07 - FH08

SS Side Mounted Level Float Switch - FH13

90 Degree Side Mounted Float Switch - FH09

Multi-Level/Custom

Full Size Multi-Level Float Switches - FM20 - FM22

Miniature Multi-Level Float Switches - FM10 - FM11 - FM12

Combo-Level/Temp

Combination Level and Temperature Sensors

Application Notes

Reed Switch Protection

One of the greatest failures of reed switches is caused by over current conditions. The currents created by many devices at "turn-on" or "shut-down" can be 5 to 10 times the "Steady State" current given as part of the power rating.

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Liquid Level Control of your fluid with a pump or valve can easily be achieved by combining your SMD Fluid Controls product with a relay or controller.

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Material Selection and Chemical Resistance Information
Choosing the correct switch materials can often mean the difference between years of dependable service and equipment failure. Materials that work well in oils or petroleum products may not be the best for common detergents or hot water.

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  Specific Gravity (SG) is the ratio of objects density to that of water. Since water has a specific gravity of 1 at sea level, liquids and substances with a lower specific gravity will float. For example a float with a specific gravity of .6 will float with approximately 60% of its volume submersed in water.

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Thread Sealing and Engagement
In order to create a properly sealed environment, care must be taken to properly thread and seal your float switch. Here are a few words of advice to assist you. Always be sure to consider the thread engagement or mounting type when selecting your actuation levels.

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Please use our application sheet to submit your project for review. Printout and submit you information using one of the application sheets below.

Application Sheet (59 KB DOC)

Application Sheet (74 KB PDF)

Please click here to print the product page for your reference.

USA:
SMD Fluid Controls
130 Research Parkway
Meriden, CT 06450
Telephone: (203)-235-9330
24 hr. Fax: (203)-235-3470
e-mail:
Europe:
SMD Fluid Controls
Bury Road, Chedburgh,
Bury St Edmunds IP29 4UQ
England
Telephone: +44 (0)1284 852 000
24 hr. Fax: +44 (0)1284 852 371
e-mail: