Trykstød

Trykstød is a Danish term that translates to "pressure shock" or "pressure surge" in English. It refers to a sudden, rapid increase in pressure within a fluid system. This phenomenon can occur in various contexts, including plumbing, hydraulics, and industrial processes.

The most common cause of trykstød in domestic plumbing is the abrupt closure of a valve, such as a faucet or a washing machine inlet valve. When water is flowing rapidly and the valve is shut off suddenly, the momentum of the moving water is halted. This creates a compression wave that travels back through the pipe, resulting in a sharp rise in pressure. This surge can be heard as a banging or thumping noise.

Trykstød can have several negative consequences. It can cause damage to pipes, fittings, and appliances by subjecting them to excessive stress. In severe cases, it can lead to leaks or even burst pipes. To mitigate the effects of trykstød, plumbers often install devices like water hammer arrestors or expansion tanks. These devices absorb the shockwave and dissipate the excess pressure. In industrial settings, trykstød can be a more significant concern due to higher pressures and flow rates, and specialized engineering solutions are employed to manage and prevent it.