ATOS proportional valve LIQZP-LEB-SN-NP-1002L4/Q in stock

Brand

ATOS/Italian Atos

ATOS Proportional Valve Structure and Principle:

When the input signal to the 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.

The performance of the ATOS proportional valve is between that of a servo valve and a proportional valve.

Proportional directional valves are a type of proportional valve used to control flow rate and direction.

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 directional valves with low operating frequencies to control the airflow. Pressure reducing valves regulate the required pressure, and throttle valves regulate the required flow rate. To achieve multiple output forces and multiple movement speeds, this traditional pneumatic control system requires 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 requires many components to be manually adjusted in advance. Electro-proportional valve control is a continuous control method, characterized by output varying with input, with a proportional relationship between the two. Proportional control can be open-loop or closed-loop.

ATOS proportional valves can control flow rate in two ways: on-off control (either fully open or fully closed, with flow rate either maximum or minimum, without intermediate states), such as ordinary solenoid direct-flow valves, solenoid directional valves, and electro-hydraulic directional valves; and continuous control (the valve can open to any degree as needed, thus controlling the flow rate). These valves can be manually controlled, such as throttle valves, or electrically controlled, such as proportional valves and servo valves. Therefore, the purpose of using proportional valves or servo valves is to achieve flow throttling control electronically (of course, pressure control can also be achieved through structural modifications). Since it is throttling control, there will inevitably be energy loss. Servo valves differ from other valves in that their energy loss is greater because they require a certain flow rate to maintain the operation of the pre-stage control circuit.

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DKZOR-A-173-S5 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