TECNIDRO

The valve controls tanks and reservoirs emptying and avoids overflow. The valve operates by means of a differential hydraulic float complete with regulating levels mounted on the tank side. The float maintains the valve closed and opens only when the minimum pre-set level is reached. Once the valve is open, float allows tank inlet until maximum water level is reached again.

The valve maintains downstream pressure to a constant and pre-set rate of upstream value. No pilots needed. The valve chamber is directly exposed to the downstream pressure and this varying pressure value modulates the valve to open or close according to upstream pressure.