A diaphragm accumulator is a hydropneumatic accumulator that uses a flexible diaphragm to separate the operating fluid from a compressible gas cushion. Diaphragm accumulators can be designed in a variety of ways. They can be built with welded or cartridge constructions and come with a variety of gas connections and elastomers.
Diaphragm accumulators have several advantages, including the ability to withstand high operating pressures. They are ideally suited for hydraulic systems, mobile applications, and industrial applications. They are durable and light weight, and are tested to meet tough international standards. This allows them to withstand a wide range of operating pressures and temperatures.
One of the key benefits of a diaphragm accumulator is that it preserves the pressure of a hydraulic system even when the system is unloaded. This is particularly useful for fixed-volume pumps that operate on long holding cycles. An accumulator works by incorporating a pressure switch, flow control, and directional control into a single circuit. When the pressure of the fluid in the accumulator is increased, it is forced through the piston and bladder to restore the accumulator's maximum pressure.
When choosing a diaphragm accumulator, it is important to consider the volume that you need. This means you may want to use an accumulator with a large storage capacity. Piston accumulators can handle high volumes of fluid, but they can be damaged by shock or vibration.