What is the purpose of air vessel fitted in the discharge?

An air vessel fitted in the discharge of a pump system serves to reduce pulsations in the flow, ensuring a smoother and more consistent output. It helps maintain pressure stability by storing and releasing energy, which minimizes fluctuations caused by the pump's operation. Additionally, the air vessel can mitigate water hammer effects, protecting the piping and associated equipment from potential damage. Overall, it enhances the efficiency and longevity of the pumping system.