Flow Switch De Dietrich 721636000

The flow switch is a safety device used in boilers and heating systems to detect water flow. It ensures that the burner only operates when there is adequate water circulation, preventing overheating and damage. A defective flow switch can cause system lockouts or no-heat situations. Replacing it with this flow switch helps maintain proper operation and protection for your heating equipment. Ideal for boiler maintenance and repair, it is a reliable component for system safety.