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Self-Operated Control Valve: General Introduction
- DELCO Valve
Self-operated control valve is an important industrial control device, which can automatically adjust the opening of the valve through its own adjusting mechanism, in order to control the pressure or flow of the fluid and stabilize it within the set value. Through reasonable design and construction, it can meet different industrial control requirements and is widely used in industry.
What is a self-operated control valve?
The self-operated control valve is a regulating valve that relies on the pressure and temperature of the medium flowing through the valve as energy to drive the valve to work automatically, and does not require an external power supply or secondary instrument.
Work principle of self-operated control valve
The working principle of the self-regulating valve is that when the medium fluid flows from the front of the valve through the spool valve seat throttling, converted into the pressure after the valve. Then through the pipeline into the upper chamber on the top of the role of the tray, which produces the force will be relative to the spring reaction force, etc.. This determines the relative position of the spool valve seat, thus controlling the pressure after the valve. When the pressure after the valve increases when the force acting on the top plate also increases, so that the spool shut off to the position of the valve seat, so that the spool and the interval between the valve seat is reduced, the flow resistance becomes larger after the valve pressure decreases. Until the top disk on the force and the spring reaction force is balanced, so that the pressure after the valve down to the preset value. When the pressure after the valve is reduced, the role of the opposite direction, which is the working principle of the self-regulating valve.
Features of self-operated control valve
- No need for additional energy, can work in the absence of electricity and gas, both convenient and energy saving.
- Pressure segmentation range is fine and cross each other, with high adjustment precision.
- Pressure setting value can be set continuously during operation.
- For post-valve pressure adjustment, the ratio between pre-valve pressure and post-valve pressure is 10:1~10:8.
- Rubber diaphragm type detection, actuators with high detection accuracy and sensitive action.
- Adopting pressure balancing mechanism makes the regulating valve responsive and precise in control.
Application of self-operated control valve
- Industrial production: automatic regulation of control pressure
- Oil and gas industry: regulating the flow of oil and gas inside pipelines
- Chemical production: control of the pressure of gases in chemical reactors
Buying Guide for Self-acting Pressure Regulating Valve
- Select the pressure range that suits your needs.
- According to the use of the environment and the characteristics of the medium to choose carbon steel, stainless steel and other materials
- Select manufacturerswith excellent brands and good reputation to ensure the quality of the product and the reliability of after-sales service.
Why choose Self-acting Pressure Regulating Valve from DELCO
As a global leading valve manufacturer with 20 years of experience, DELCO has valve products suitable for various industrial environments. DELCO focuses on the generation and manufacture of valves. Whether you need a self-operated control valve or other valve products, DELCO can provide customized solutions and professional after-sales support. Welcome to contact us for more product information.
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