► Features

These solutions require a medium-sized civil work to guarantee a water level in a chamber or an outlet in free sheet, to bypass flows downstream of the chamber or to control the outlet of the pressurized pipe. These solutions control the level in the chamber independently of the flow rate in the pipe or the pressure upstream and in an autonomous way.

The Self-Centering Disc Valve do not produce water hammer or cavitation whatever the opening degree and energy to be dissipated. The absence of motors and sensors contributes to the robustness and reliability of this equipment, in many cases they can be used to replace other mechanical elements such as ring-seal valves, globe valves, Howell-Bunger and with better cavitation performance.

It can function as an energy dissipator of the water leaving the pipeline, if it is desired to switch to a open chamber, or as an intermediate pressure release point to then return to a pressurized pipeline (pressure staggering with break to atmosphere in steeply sloping pipelines). Unlike conventional pressure reducing valves, which can only reduce about 66% of the load, Self-Centering Disc Valve can break the entire head to atmospheric pressure without problems and without cavitation.

They also allow maintaining a level in a chamber at atmospheric pressure, ready to be used, while keeping the supply pipe under pressure. When there is a demand for water, the level in the chamber decreases and the equipment is activated to restore the volume of water used. In this way, the flow rate in the upstream pipeline is equated with the flow rate consumed downstream.

Some permanent autonomous functions or uses could be:

• End of a pressurized pipeline and transition to a open canal or chamber: A controlled breakdown of residual pressures in the pipeline is done, considering the constant pressure variation from static to dynamic for the design flow rate, and the possible need to maintain a constant delivery flow rate. With this equipment, flow rates can be regulated at outlets of dams, reservoirs and pipelines to adjust them to the demand. These reducing chambers can also function as bypasses.
• Filling of stepped reservoirs: Controlled pressure breaks are used in series reservoirs, keeping the networks at low pressure to deliver water to reservoirs with different filling levels. All this is done by keeping the pipeline under pressure and reaching a static load in case of non-consumption, avoiding the unnecessary inflow of water that later must be drained.
• A supplement to a water source: Flow is added when the downstream water level is less than a predefined level.
  

These solutions allow to cover a wide range of flow rates and loads to be dissipated (up to 250 m.c.a.) with two equipment formats, Hooded Self-Centering Disc Valve and Suberged Self-Centering Disc Valve, with similarities and differences that allow to adapt to any situation required for the charge breaking function.

► Tips about use

This solution includes equipment inspired by a simple hydraulic design, totally autonomous, robust and free of any mechanical complication, allowing it to adapt to the most severe working conditions.

► Engineering and Selection

For dimensioning and selection of the appropriate model to include in the solution, as well as for installation instructions and other technical information, we invite you to see our technical brochure and t ponerse en contact our specialist.

► Features

These solutions require a medium sized civil work to guarantee a water level in a chamber or outlet in a open canal, for use in downstream flow bypassing or for a controlled outlet of the pressurized pipeline. These solutions control the level in the chamber independently of the flow rate circulating in the pipe or the upstream pressure and actuated by a motor.

The Self-Centering Disc Valve do not produce water hammer or cavitation whatever the opening degree and energy to be dissipated. The absence of motors and sensors contributes to the robustness and reliability of this equipment, in many cases they can be used to replace other mechanical elements such as ring-seal valves, globe valves, Howell-Bunger and with better cavitation performance.

It can function as an energy dissipator of the water leaving the pipeline, if it is desired to switch to a open chamber, or as an intermediate pressure release point to then return to a pressurized pipeline (pressure staggering with break to atmosphere in steeply sloping pipelines). Unlike conventional pressure reducing valves, which can only reduce about 66% of the load, Self-Centering Disc Valve can break the entire head to atmospheric pressure without problems and without cavitation.

They also allow maintaining a level in a chamber at atmospheric pressure, ready to be used, while keeping the supply pipe under pressure. When there is a demand for water, the level in the chamber decreases and the equipment is activated to restore the volume of water used. In this way, the flow rate in the upstream pipeline is equated with the flow rate consumed downstream.

Some functions or uses according to operational needs could be:

• Controlled emptying of a pipeline: controlled at the user's request. Similar to the functionality of a Howell-Bunger but for smaller flows and more compact installations, as the energy dissipation occurs in a concentrated and determined zone within the same civil work.
• Turbine by-pass: in hydroelectric developments, to keep the pipeline under charge and continue supplying downstream while maintenance work on the generator sets is being performed.

These solutions allow to cover a wide range of flow rates and loads to be dissipated (up to 250 m.c.a.) with two equipment formats, Hooded Self-Centering Disc Valve with Electric Actuator and Suberged Self-Centering Disc Valve with Electric Actuator, with similarities and differences that allow to adapt to any situation required for the charge breaking function.

► Tips about use

This solution includes equipment inspired by a simple hydraulic design, fully automatable, robust and devoid of any mechanical complication, allowing it to adapt to the most severe working conditions.

► Engineering and Selection

For dimensioning and selection of the appropriate model to include in the solution, as well as for installation instructions and other technical information, we invite you to see our technical brochure and t ponerse en contact our specialist.

► Features

These solutions propose a medium-sized civil work, which allows to guarantee a water level in a chamber or outlet in free water, for applications such as downstream flow bypassing or for a controlled outlet of the pressurized pipeline. These solutions control the level in the chamber by closing or opening the valve which is electrically actuated according to the level signal in the chamber.

The Multiorifice Regulation Valve do not produce water hammer, nor cavitation whatever their opening rate and the energy to dissipate. They are mounted between flanges, have reduced dimensions and do not require a downstream piping for turbulence.

► Tips about use

This solution includes equipment inspired by a simple hydraulic design, fully automatable, robust and devoid of any mechanical complication, allowing it to adapt to the most severe working conditions.

► Engineering and Selection

For dimensioning and selection of the appropriate model to include in the solution, as well as for installation instructions and other technical information, we invite you to see our technical brochure and t ponerse en contact our specialist.