Side Mounted Level Switch
Compact pivoted float switch for low, intermediate and high level alarms through the tank wall.
- Pressure
- Up to 100 bar
- Temperature
- Up to 300 °C
- Connections
- Flanged to ANSI, DIN or BS, size as required
Sigma Instruments CompanyMade in Mumbai
Level Switches
External Cage Level Switch
Cage mounted magnetic float switch with an anti vibration design, widely used in petroleum and power plants.
Technical dataStandard limits
- Pressure
- Up to 200 bar
- Temperature
- Up to 400 °C
- Connections
- Flanged to ANSI, DIN or BS, size as required
Units can be built to your specified pressure, temperature, range and material.
Typical applications
- Petroleum and refinery service
- Power plant boilers and vessels
Product overview
Sigma external cage level switches are widely used across the petroleum and power industries. An anti vibration design ensures positive switch action, and the cage mounted construction adapts to a wide range of other applications.
How it works
As the float rises with the liquid, it lifts a magnetic sleeve inside a non magnetic enclosure tube into the field of a pivoted permanent magnet. The magnet is attracted, swings across its pivot and actuates the micro switch. When the level falls, the float draws the sleeve back out of the field, the magnet swings away and the switch returns to its original position, giving the low level signal.
The enclosure tube forms a static seal between the switch mechanism and the float, so there are no flexing bellows, packing glands or other failure prone seals.
More Level Switches
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Top Mounted Level Switch
Displacer type level controller with a fully isolated electrical compartment for severe service.
- Pressure
- Up to 200 bar
- Temperature
- Up to 400 °C
- Connections
- Flanged to ANSI, DIN or BS, size as required
Reed Type Level Switch
Float operated reed switch for multi point level indication in water, diesel, chemical and hydraulic tanks.
- Pressure
- Up to 50 bar
- Temperature
- Up to 110 °C
- Range
- Lengths up to 3.5 m
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