ATOS proportional directional valve DPZO-AE-171-L5/E in stock

Brand

ATOS/Italian Atos

ATOS Gear Pumps, ATOS Axial Piston Pumps, ATOS Vane Pumps, ATOS Hydraulic Cylinders, ATOS Relief Valves, ATOS Proportional Valves

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Differences between ATOS Proportional Directional Valves and Servo Valves

The main differences are as follows:

1. Different drive devices. The drive device for proportional valves is a proportional electromagnet; the drive device for servo valves is a force motor or torque motor;

2. Different performance parameters. 2.1 Servo valves have no dead zone in the neutral position, while proportional valves do. Therefore, their applications differ. Servo valves and servo proportional valves are mainly used in closed-loop control systems, while other proportional valve structures are mainly used in open-loop control systems and closed-loop speed control systems.

2.2 Servo valves have a higher frequency response (response frequency), reaching up to around 200Hz, while proportional valves generally have a maximum frequency of tens of Hz.

2.3 Servo valves have higher requirements for hydraulic fluid, requiring fine filtration to prevent clogging, while 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 an O-type neutral position function (E-type for Rexroth products).

5. Rated pressure drop differs.

Proportional servo valves offer performance between servo valves and proportional valves.

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

ATOS Proportional Directional Valve Extended Information---Electrical proportional valve automatic control can be divided into intermittent control and continuous control. Intermittent control is 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. Pressure reducing valves regulate the required pressure, and throttle valves regulate the required flow rate. This traditional pneumatic control system requires multiple pressure reducing valves, throttle valves, and directional valves to achieve multiple output forces and multiple movement speeds. 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 type of continuous control, characterized by output varying with input, and a certain proportional relationship exists between the output and input. Proportional control is divided into open-loop control and closed-loop control.

Proportional Directional Valve DPZO-A-271-L5/DEG

Proportional Directional Valve DPZO-A-271-L5/DEG

Proportional Directional Valve DPZO-A-273-D5/D/G

Proportional Directional Valve DPZO-A-273-D5/E30

Proportional Directional Valve DPZO-A-273-S5

Proportional Directional Valve DPZO-A-371-L5/DG

Proportional Directional Valve DPZO-A-373-D5/E30

Proportional Directional Valve DPZO-AE-171-S5/E

Proportional Directional Valve DPZO-AE-171-S5/E

Proportional Directional Valve DPZO-AE-171-S5/G

Proportional Directional Valve DPZO-AE-171-S5/G +SP-ZH-7P

Proportional Directional Valve DPZO-AE-171-L5/E

Proportional Directional Valve DPZO-AE-173-S5

Proportional Directional Valve DPZO-AE-271-L5

Proportional Directional Valve DPZO-AE-271-L5

Proportional Directional Valve DPZO-AE-271-L5

Proportional Directional Valve DPZO-AE-273-L5

Proportional Directional Valve DPZO-AE-273-L5

Proportional Directional Valve DPZO-AE-373-S5

Proportional Directional Valve DPZO-AE-373-S5

Proportional Directional Valve DPZO-AES-PS-273-L5/IZ

Proportional Directional Valve DPZO-TE-173-S5/I

Proportional Directional Valve DPZO-TE-271-L5/D

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Proportional Directional Valve DPZO-L-273-L5

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Proportional Directional Valve DPZO-LE-271-L5

Proportional Directional Valve DPZO-LE-271-L5/D

Proportional Directional Valve DPZO-LE-271-L5/D/I

Proportional Directional Valve DPZO-TE-271-S5 40

Proportional Directional Valve DPZO-A-271-L5/DEG

Proportional Directional Valve DPZO-A-273-D5/D/G

Proportional Directional Valve DPZO-A-273-D5/E30

Proportional Directional Valve DPZO-A-273-S5

Proportional Directional Valve DPZO-A-371-L5/DG

Proportional Directional Valve DPZO-A-373-D5/E30

Proportional Directional Valve DPZO-TE-171-L5

Proportional Directional Valve DPZO-AE-171-S5/E

Proportional Directional Valve DPZO-AE-171-S5/G

Proportional Directional Valve DPZO-AE-171-S5/G +SP-ZH-7P

Proportional Directional Valve DPZO-AE-171-L5/E

Proportional Directional Valve DPZO-AE-173-S5

Proportional Directional Valve DPZO-AE-271-L5

Proportional Directional Valve DPZO-AE-273-L5

Proportional Directional Valve DPZO-AE-273-L5

Proportional Directional Valve DPZO-AE-373-S5

Proportional Directional Valve DPZO-AES-PS-273-L5/IZ

Proportional Directional Valve DPZO-TE-171-L5

Proportional Directional Valve DPZO-TE-173-S5/I

Proportional Directional Valve DPZO-TE-271-L5/D

Proportional Directional Valve DPZO-L-271-L3

Proportional Directional Valve DPZO-L-273-L5

Proportional Directional Valve DPZO-LE-270-S5/G

Proportional Directional Valve DPZO-LE-271-L5

Proportional Directional Valve DPZO-LE-271-L5/D

Proportional Directional Valve DPZO-LE-271-L5/D/I

Proportional Directional Valve DPZO-TE-271-S5 40

Proportional Directional Valve DHZO-A-071-S5

Proportional Directional Valve DHZO-A-073-D5

Proportional Directional Valve DHZO-A-073-D5/18

Proportional Directional Valve DHZO-A-073-L5 ATOS Proportional Directional Valve DPZO-A-251-D5/

ATOS Proportional Directional Valve Structure and Principle

When the input signal to the ATOS proportional directional 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.

ATOS Proportional Directional Valve Features

1) Enables stepless adjustment of pressure and speed, avoiding the impact phenomenon during switching of normally open on/off air valves.

2) Enables remote control and program control.

3) Compared to intermittent control, the system is simplified, and the number of components is greatly reduced.

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) Low power consumption, low heat generation, and low noise.

6) No fire hazard and no environmental pollution. Less affected by temperature changes.

ATOS Proportional Directional Valve

ATOS proportional directional valves control flow in two ways: One is on/off control: either fully open or fully closed, with flow either at maximum or minimum, without intermediate states, such as ordinary solenoid direct-flow valves, solenoid directional valves, and electro-hydraulic directional valves. The other is continuous control: the valve can open to any degree as needed, thereby 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 or servo valves is to achieve throttling control of flow rate electrically (of course, pressure control can also be achieved through structural modifications). Since it is throttling control, there is inevitably 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 upstream control circuit.

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, Helón (Norgren)

Italian brands: OMAL, ATOS, CAMOZZI, UNIVER, Camozzi