Märkäjärjestelmissä

Märkäjärjestelmissä refers to wet systems in various contexts, most commonly in fire protection. In fire safety, a wet system is a type of sprinkler system where water is present in the piping at all times. When a sprinkler head is activated by heat, water is immediately discharged onto the fire. This contrasts with dry systems, which are filled with air or nitrogen and require a valve to open before water can enter the pipes. Märkäjärjestelmissä are generally simpler in design and less prone to accidental discharge than dry systems, making them suitable for environments where the temperature remains above freezing.

The primary advantage of märkajärjestelmissä is their rapid response time to a fire. Because the pipes are constantly filled with water, there is no delay in water delivery to the sprinkler heads. This immediate discharge can be crucial in suppressing or controlling a fire in its early stages, minimizing damage and potential harm. These systems are widely used in buildings with a consistently moderate temperature, such as residential buildings, offices, and many commercial establishments.

However, märkajärjestelmissä are not suitable for areas that are exposed to freezing temperatures, as the water in the pipes could freeze and rupture the system. In such instances, dry pipe systems or pre-action systems (which combine elements of both wet and dry systems) are employed. Regular maintenance and testing are essential for all märkajärjestelmissä to ensure their reliability and effectiveness in case of a fire.