A hydrofor is a pressure tank designed to maintain a constant pressure in an installation. It is often referred to as a hydrofor tank, pressure tank, or water-air tank. In practice, it is a set of devices that includes, in addition to the pressure pump, a hydrofor pump, a pressure switch (differential pressure sensor), and valves.
How a hydrofor works
The operation of a hydrofor is not particularly complicated, although different components are responsible for its individual stages. Its operation is based entirely on the basic laws of physics.
Part of the tank is filled with water, while air in the form of a so-called cushion is located above its surface. As water is pumped in, the space occupied by air in the tank decreases, causing it to compress. This increases the pressure, which “pushes” against the water and forces it out of the tank. When the maximum pressure is reached, the pressure switch turns on the pump.
Due to the pressure, when the valves are opened, for example after turning on a tap, water is forced out of the tank by the compressed air, reaching the appropriate pressure. At the same time, the water level in the tank drops, causing the air to expand and the pressure to decrease. When the pressure in the tank reaches its minimum level, the pressure switch activates the hydrofor again, and it fills the tank with water until the maximum pressure is reached.
Applications of a hydrofor
Hydrofor tanks are most commonly used in private buildings, although they can also be successfully used in municipal water supply systems. A hydrofor is essential in households that draw water from their own well. It is also useful when insufficient pressure at the connection point to the water supply system makes it difficult or impossible for water to reach all outlets.
Our range includes hydrofors in various sizes, allowing you to choose a tank suited to your needs and therefore to the amount of water consumed. Selecting the right hydrofor is very important, as it can affect the pump’s performance and service life.
