A thermocouple is a device that is made of two different metals that produce a charge when heated on one side. This small electrical charge switches on an electromagnet which opens a valve and no longer restricts the flow of water or gas.
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Technical specification
Waist Sizeab34ch14gwERP RatingNot ApplicableSupplier Part Number7220212ABrand NameBlack Teknigas
Reviews
Thermocouple Main Medway Super Equivalent 7220212A