Double Mercury Contact for Fantini Boiler Tagdiye
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Fantini Cosmi Double Mercury Contact for Boiler Tagdiye: Dual Level Control and Safety
Fantini Cosmi boiler feed devices are critical systems that precisely control water levels in steam boilers. The double mercury contact is a vital component within these mechanical level switches, capable of simultaneously managing two independent electrical circuits.
What is a Double Mercury Contact and What Does It Do?
A double mercury contact is an element with two separate electrical switching mechanisms within a sealed glass tube . The boiler level switch changes the angle of this glass tube by moving the float arm in relation to the water level. The mercury in the two different positions connects the separate contacts, generating two independent signals.
Double Mercury Contact Main Functions:
Dual Control: Typically, the first contact is used to activate or deactivate the boiler feed pump (Start/Stop), while the second contact is used to trigger a critical low or high level alarm . This provides double safety and control with a single mechanical action.
Sensitive Switching: Mercury's surface tension allows contacts to bond quickly and reliably. This makes mercury contacts ideal for level switches requiring low power and precise switching.
Safety and Isolation: Mercury is completely isolated in a closed glass tube.
Features and Advantages of Double Mercury Contact:
Double Contact: Thanks to two independent circuit controls, it reduces the complexity of boiler automation systems and increases the level of safety.
Sealing: The hermetic (airtight) structure inside the glass tube prevents the internal mechanism from being affected by environmental factors (moisture, steam, dirt).
High Reliability: Mercury contacts wear less and have a longer life than mechanical switches.
Vibration Resistance: Thanks to the structure of mercury, it is not affected by slight vibrations in the mechanical system.
Compact Spare Part: Used to replace faulty contacts in Fantini Cosmi boiler feed devices (level switches).
Double Mercury Contact Usage Areas:
Steam Boilers: Automatic control of boiler feed water level plus low level alarm/lockout system.
Hot Water Tanks: Level control systems.
Fantini Cosmi Tagdiye Devices: As an original spare part, it is used to maintain the correct operation and safety of the device.