A pulsation dampener is a device that stores energy and has a pre-set charge that it can use to absorb shocks to the system on which it is installed. These reduced shocks can aid systems, especially piping systems, in dealing with pulses, vibrations, water hammering and fluctuations in pressure levels. This process can help improve the longevity of the equipment in the system.
According to Cat Pumps, systems that utilize pipes and pressurized liquids are at risk of being damaged by irregular pulses. This can do damage to a number of different pieces of equipment, such as regulators, sensors and solenoids. Pulsation dampeners are installed to prevent this damage. These dampeners are vessels with some gas inside. Nitrogen is a common choice. The pressure inside of this vessel is lower than the circuit it is attached to.
Because they are able to separate liquids from gases and minimize gas losses, pulsation dampeners can prevent vibrations and unwanted pulses. This can be applied to a number of different industries and types of systems. Pulsation dampeners are often used in hydraulic circuits or other systems where an oscillating flow might be encountered. These types of pressurized movements often result in fluctuations that are potentially damaging to the system.