Balem 441 is a float hydraulic liquid level control valve for use in reservoirs. It is a solenoid operated hydraulic control valve. In case if power failure, it can be overridden mechanically by installing a pilot valve. It is suitable for and safe at high pressure flow as it' s opening and closing is both by solenoid and mechanical pilot valve. It' s corrosion resistance and thermal resistance is excellent, and it will not contaminate the line fluid.