Areation valve DV995

Features

• High operational safety and long service life • Requires little maintenance • Simple connection of the valve to the pipeline by the tried and tested gluing or welding process. Aplications

• Chemical plant constructions • Water treatment Use

• For aeration of industrial plants Function

• The valve ball / float clogs the vessel by spring force. The fluid or gases cannot vent. If fluid is now removed from the vessel, a vacuum is created in the vessel. When the forces – pressure and spring force – are neutralised, the valve opens. Air/protective gas can enter the vessel. Indication

• Due to operational conditions, only vertical installation is possible. • The vessel cannot be filled without additional deaeration. • The opening pressure of the float or ball is approx. 0.05 bar. • This value is highly dependent on temperature, system pressure, fluid and the degree of general fouling (crystallisation), etc. • The valves are not suitable for media that impair the opening or closing of the ball/float due to deposits or adhesion. Fluids

• Neutral or aggressive, technically pure, liquid or gaseous fluids or gases, if the valve components in contact with the fluids are resistant to the operating temperature according to the Divatec resistance list