 Hydropneumatic device

Hydropneumatic devices such as hydropneumatic accumulators or pulsation dampeners are devices which prevent, but do not absorb, alleviate, arrest, attenuate, or suppress a shock that already exists, meaning that these devices prevent the creation of a shock wave at an otherwise earlier stage.These can include pulsation dampeners, hydropneumatic accumulators, water hammer preventers, water hammer arrestors, and other things.