German S&S valves S&S models S&S prices

S&S valve, also known as a self-acting balance valve, flow control valve, flow controller, dynamic balance valve, or flow balance valve, is an intuitive and simple flow regulation control device. When applied in pipe networks, the flow control valve can set the flow rate directly according to the design. Under the action of water, the valve automatically eliminates flow deviations caused by residual head and pressure fluctuations in the pipeline, maintaining the set flow rate constant regardless of system pressure changes. These functions allow the pipe network flow regulation to be completed in one step, turning network adjustment into simple flow distribution and effectively solving hydraulic imbalance in the pipe network. Flow control valves are mainly applied in: central heating (cooling) and other water systems, enabling on-demand distribution of pipe network flow, eliminating hydraulic imbalance in water systems, and solving problems of uneven heating and cooling.

S&S valve working principle

By receiving signals from industrial automation control systems (such as: 4~20mA), it drives the valve to change the cross-sectional area between the valve core and valve seat, thereby controlling process parameters such as flow, temperature, and pressure of the pipeline medium. This achieves automatic regulation functionality.

S&S valve structure

Self-acting pressure regulating valves do not require external energy sources such as power or air supply; they rely solely on the energy of the medium itself for drive. They are energy-saving, environmentally friendly, and easy to use. After installation, setting the pressure value allows for automatic operation. Therefore, they are increasingly widely used in situations where control precision requirements are not high and power or air sources are lacking. However, during use, attention must be paid to the specificity of model selection, otherwise accidents may easily occur. During use, pay attention to model selection and installation environment; therefore, understanding the working principle and structure of self-acting pressure regulating valves in detail is very important.

S&S valve applications

The self-operated pressure regulating valve (hereinafter referred to as the pressure valve) is an energy-saving product that automatically regulates pressure by relying solely on the pressure changes of the medium itself, without requiring an external energy source. It integrates the functions of measurement, actuation, and control. It is widely used in industrial sectors such as petroleum, chemical, metallurgy, and light industry, as well as in urban heating and space heating systems. This product can be used as a pressure control device for non-corrosive media such as liquids, gases, and steam [maximum temperature 350 °C].

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