The structural principle of the Italian ATOS proportional valve
$152.65
ATOS proportional valves have higher requirements for hydraulic fluid, requiring filtration to prevent clogging; other proportional valves have lower requirements. 3. Valve core structure and machining precision differ. Proportional valves use a valve core + valve body structure, with the valve body also serving as the valve sleeve. Servo valves and servo proportional valves use a valve core + valve sleeve structure. 4. Neutral position functions differ. Proportional directional valves have neutral position functions similar to ordinary directional valves, while servo valves only have O-type neutral position functions (E-type for Rexroth products). 5. Rated pressure drop differs. The performance of proportional servo valves falls between that of servo valves and proportional valves.
Brand
ATOS/Italian Atos
ATOS Proportional Valve Structure and Principle
When the input signal of the Italian ATOS proportional valve increases, the pilot valve 1 of the supply solenoid valve switches, while the exhaust solenoid pilot valve 7 remains in the reset state. The supply pressure then enters the pilot chamber 5 from the SUP port through valve 1. The pilot chamber pressure rises, and the air pressure acts on the diaphragm 2, causing the supply valve core 4 connected to diaphragm 2 to open, and the exhaust valve core 3 to close, generating output pressure. This output pressure is fed back to the control circuit 8 via pressure sensor 6. Here, a rapid comparison and correction is performed with the target value until the output pressure is proportional to the input signal, thus demonstrating that the output pressure changes proportionally to the change in the input signal. Because there is no nozzle-baffle mechanism, the valve is insensitive to impurities and has high reliability.
Features of the Italian ATOS proportional valve:
1) It can achieve stepless adjustment of pressure and speed, avoiding the impact phenomenon during switching of normally open on/off valves.
2) It can achieve remote control and program control.
3) Compared to intermittent control, the system is simplified, with a significant reduction in components.
4) Compared to hydraulic proportional valves, it is smaller, lighter, simpler in structure, and lower in cost, but its response speed is much slower than hydraulic systems, and it is more sensitive to load changes.
5) It uses less power, generates less heat, and produces less noise.
6) It will not cause a fire and will not pollute the environment. It is less affected by temperature changes.
The Italian ATOS proportional valve is a type of proportional valve used to control flow rate and direction.
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Extended Information---Automatic control of electrical proportional valves can be divided into intermittent control and continuous control. Intermittent control is also known as on/off control. Pneumatic control systems use on/off (ON-OFF) directional valves with low operating frequencies to control the opening and closing of the air path. Traditional pneumatic control systems rely on pressure-reducing valves to regulate the required pressure and throttle valves to regulate the required flow rate. To achieve multiple output forces and speeds, such systems require multiple pressure-reducing valves, throttle valves, and directional valves. This not only increases the number of components, raising costs and complicating the system, but also necessitates manual adjustment of many components beforehand. Electro-proportional valve control is a continuous control method, characterized by output varying proportionally to input. Proportional control can be open-loop or closed-loop.
The company mainly deals with European and American brands and can source brands from any European country. For example, our key German brands include: BURKERT, DEMAG, HAWE, REXROTH, HYDAC, PILZ relays, FESTO, IFM sensors, E+H, HEIDENHAIN, P+F sensors, SICK, TURCK, and HIRSCHMANN industrial switches. German brands: Hengstler, Murr, Schmersal, Samson, EPRO (Emerson Group)
American brands: MOOG, ASCO, MAC, NUMATICS, PARKER, VICKERS, ROSS
British brands: Norgren
Italian brands: OMAL, ATOS, CAMOZZI, UNIVER, Camozzi
