該閥采用活塞氣囊式內部為密封的容氣腔。下端為活塞，當沖擊波傳入水錘消除器時，水擊波作用于活塞上，活塞將被推往容氣腔的方向運動，活塞在一定壓力的氣體和不規則水擊波雙重作用下做上下運動，形成一個動態的平衡，這樣就消除了不規則的水擊波震蕩。
This valve uses a piston gas cell, its internal is a closed gas-container and lower end is a piston. When shock wave is transmitted into the water hammer remover, the water-shock wave acts on the piston The piston to move towards the gas-container and take up-down movement under the gas of a certain pressure and the irregular water-shock wave, a doubled action, thus forming a dynamic balance so as to remove the irregular water-shock wave’s os-cillation.