Valve on - Import export

The valve closes totally the pipe line when back flow occurs. The valve is complete with an hydraulic control circuit able to regulate operation’s speed during closing, preventing surge. TYPICAL APPLICATIONS Pump protection; prevention of line emptying; balance in inter-connected hydraulic lines.

The valve reduces upstream pressure to a pre-set lower and constant downstream pressure value, regardless of fluctuating flow or varying upstream pressure.

PROGRAMMABLE ELECTRO-HYDRAULIC VALVE Battery controller operated valve.

Hydraulically or Pneumatic operated. TYPICAL APPLICATIONS Irrigation, water treatment, animal feeding plants.

The valve controls downstream flow to a pre-set and constant value in order to limit water consumptions and preserve pipeline fill rate or to set a maximum demand value. The valve is controlled by a differential hydraulic pilot that senses the pressure fall generated by water flow into a calibrated orifice.

The valve reduces high upstream pressure to a pre-set lower and constant downstream pressure level, regardless of fluctuating flow or varying upstream pressure. A hydraulic regulating pilot drives the valve. The pilot is able to detect upstream pressure values and regulates closing steps of the valve until the pre-set pressure value is restored.

This valve protects pumps and pipes from pump startup and shutoff pressure surges due to power failure. Pump off means valve normally closed. If pump starting cause pressure surge, the pilot smoothly opens the valve to limit pressure rising.

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.

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 assures maximum water level into tanks and reservoirs and avoids overflow. The valve operate by means of a modulating float, mounted on tank, able to regulate gradual opening of the valve when water level goes down from maximum.

The valve isolates pumps from the system during pumps starting and stopping to protect pipe lines and pumps itself. The valve is equipped with a control solenoid valve that is switched on at pump starting and is able to fulfill pipe line gradually, reducing pressure rising peaks and allowing soft starting of the pump with closed outlet. The valve controls pump stopping as well, gradually closing before sending a closing signal to the pump. In case of casual pump stop, the valve acts also as an automatic check valve, preventing backflow over the impeller.

The valve controls downstream flow to a pre-set and constant value in order to limit water consumptions and preserve pipeline fill rate or to set a maximum demand value. The valve is controlled by a differential hydraulic pilot that senses the pressure fall generated by water flow into a calibrated orifice.

The valve avoids reservoir emptying and flooding dues to casual pipeline failure. The valve is controlled by a differential hydraulic pilot that senses flow speed closing completely main flow when senses critical speed values.

This valve controls water level in high level reservoirs to avoid overflow, without any external control system like float control etc. The valve remains completely open until the closing input is transmitted by the 3-ways piezometric altitude pilot.

The valve closes totally the pipe line when back flow occurs. The valve is complete with an hydraulic control circuit able to regulate operation’s speed during closing, preventing surge.