





The Silenta Professional aeration pumps guarantee a high air yield. The low-noise motors have a low power consumption and a long lifetime. These Silenta pumps are supplied completely, including fibre reinforced aeration hose and large aeration stones.
The following models are available: Silenta 1200, 1800, 3600, 4800 and 6000.
These aeration pumps have been made especially for Velda. They combine a tremendous air yield with excellent quality and lifetime. The pumps are universally usable and are frequently applied for the aeration of ponds, however, they are also very suitable for aquaria. The diameter of the hose liner is 8 mm. Silenta Pro aeration pumps are supplied including a ‘Giant’ aeration stone and 5 m of reinforced aeration hose of 8 mm. Owing to the high pressure several aeration stones can be connected at the same time.
GENERAL
To obtain a good biological environment, in which fish and plants thrive excellently, it is necessary for many garden ponds to apply aeration in the pond water. Aeration produces oxygen and keeps water moving, thus allowing optimum bacterial development and a correct equilibrium in the pond.
SUMMER PERIOD
Especially during the summer period, when the temperature of the water rises, often lack of oxygen occurs. When fish swim to the surface area of the water to gasp air, this indicates already that there is lack of oxygen in the water. Aeration of the water will bring relief then.
WINTER PERIOD
Death of fish regularly occurs in the winter season, when garden ponds freeze over. Especially in small and shallow ponds there is a great risk that, after freezing, choking will occur. Aeration will produce oxygen in the first place, however, it will also prevent the pond from freezing all over.
| Product | Model | Pressure | Yield |
| Silenta Pro 1200 | 15 Watt | 0,020 MPa | 1,200 l/h |
| Silenta Pro 1800 | 25 Watt | 0,025 MPa | 1,800 l/h |
| Silenta Pro 3600 | 35 Watt | 0,030 MPa | 3,600 l/h |
| Silenta Pro 4800 | 65 Watt | 0,035 MPa | 4,800 l/h |
| Silenta Pro 6000 | 80 Watt | 0,038 MPa | 6,000 l/h |
