Fixed Cone Valves

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The Fixed Cone Valves (also called Free Discharge Valves) are mainly used as an alternative to Hollow Jet Valves in applications that require water to be freely discharged into the atmosphere at controlled rates. This type of valve dissipates enormous amounts of energy by breaking down the water into a large, hollow expanding jet.
The Fixed Cone Valves are designed to operate at variable controlled flow rates between fully open and fully closed without creating damaging vibrations.
Although the primary objective of this type of valve is for free discharge of water into the atmosphere, Fixed Cone Valves can also be used for submerged discharge operations.
In the event that site conditions require concentration of the water outflow, Vortex Hydra also design and manufacture suitable Concentration Hoods.
Similar to other products, the Fixed Cone Valves are manufactured in a combination of steel plates and forged parts. Vortex Hydra, as part of their design criteria, normally recommend the grade of steel to be used, but any special request from the customer can be analysed and agreed on.

The operational system of the Fixed Cone Valve can consist of the following:
• Hydraulic twin cylinders
• Electric motorised gearbox
• Special operational system defined and agreed with the customer

A typical range of applications are:
• Diameter up to DN3000
• Pressure up to PN40

Sealing System: rubber against metal.
All phases of the engineering design and fabrication through to final testing are undertaken by Vortex Hydra in compliance with UNI EN ISO 9001 Quality Management System.
Vortex Hydra design and manufacture Fixed Cone Valves having a nominal diameter up to 2500 mm diameter.

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