kumikalvosäiliö

A kumikalvosäiliö, often translated as a rubber diaphragm tank or flexible diaphragm tank, is a type of storage tank designed to hold liquids or gases. Its key feature is a flexible diaphragm, typically made of rubber or a similar elastomeric material, that divides the tank into two compartments. One compartment contains the stored medium, while the other is usually filled with a compressible gas, such as nitrogen or air.

The diaphragm moves within the tank, expanding or contracting to accommodate changes in the volume of the stored substance. This movement allows the tank to maintain a relatively constant pressure, acting as a buffer against pressure fluctuations. This makes kumikalvosäiliö suitable for applications where consistent pressure is required or where the stored medium needs to be protected from atmospheric contamination.

These tanks are commonly used in various industrial and domestic settings. They can be found in hydropneumatic systems for water supply, where they help to smooth out pressure variations caused by pumps. They are also employed in chemical processing, to store sensitive chemicals, and in various pneumatic applications. The flexible nature of the diaphragm also prevents direct contact between the stored medium and the tank walls, which can be beneficial for corrosive substances or when maintaining purity is critical. The construction typically involves a robust outer shell and the internal flexible diaphragm.