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Your location: Home > Related Articles > The difference between ATOS proportional valve and servo valve

The difference between ATOS proportional valve and servo valve

Author:QINSUN Released in:2023-04 Click:103

The difference between ATOS proportional valve and servo valve

The difference between ATOS plunger pump, ATOS gear pump, ATOS axial piston pump, ATOS vane pump, ATOS cylinder and electric valve Expand and edit this section< /p>

The difference between ATOS proportional valve and servo valve:

Mainly reflected in the following points:

1. The actuating device is different. The driving device of the proportional valve is a proportional solenoid, the driving device of the servo valve is a force motor or a torque motor;

2. The performance parameters are different. Hysteresis loop, median dead zone, bandwidth, filtering accuracy and other characteristics are different, so the application occasions are different Servo valves and servo-proportional valves are mainly used in closed loop control systems, and proportional valves with other structures are mainly used in open loop control systems loop and speedclosed loop control systems Operating system;

2.1 ATOS servo valve has no center dead zone and proportional valve has neutral dead zone;

2.2 The frequency response (response frequency) of ATOS servo valves is higher, which can go up to about 200 Hz, proportional valves generally have a maximum of tens of Hz;

2.3 ATOS servo valves have higher demands on hydraulic oil and need fine filtration, otherwise they are easy to block and proportional valves have lower requirements;

3. The structure of the valve core and the machining accuracy are different. The proportional valve adopts a valve core + valve body structure, and the valve body also serves as a valve sleeve. The servo valve and servo proportional valve adopt the structure of coil + valve sleeve.

4. There are different kinds of median functions. Proportional directional control valves have a neutral function similaris with ordinary directional control valves, while servo valves only have O-type (E-type Rexroth products) center position functions.

5. The nominal pressure drop of the valve is different.

The performance of ATOS proportional servo valve is between servo valve and proportional valve.

ATOS proportional reversing valve is a kind of proportional valve, which is used to control flow and flow direction.

ATOS proportional valve automatic control can be divided into intermittent control and continuous control. Intermittent control is switch control. In the pneumatic control system, a low operating frequency ON-OFF reversing valve is used to control the on-off of the air circuit. The required pressure is adjusted by the pressure reducing valve and the required flow rate is adjusted by the throttle valve. If this traditional pneumatic control system has multiple output forces and multiple speeds of movementwants to have the same number of functions, it needs several pressure reducing valves, throttle valves and reversing valves. For example, not only are many components required, the costs are high and the system is complex, but many components also have to be adjusted manually in advance. Electric proportional valve control belongs to continuous control, and its characteristic is that the output volume changes with the input volume, and there is a certain proportional relationship between the output volume and the input volume. Proportional control can be divided into open-loop control and closed-loop control

The company mainly produces European and American brands, and can source brands from any European country. For example, the leading brands in Germany are: BURKERT , DEMAG, Germany HAWE, Germany REXROTH Rexroth, Germany HYDAC Hydac, German PILZ Pilz relay, German FESTO Festo, German IFM ifm sensor, German E+H Enders Haus, German HEIDENHAIN, German P+F Pepperl+Fuchs sensor, German SICK, Germany TURCK Turck, Germany HIRSCHMANN Hessman industrial switches. Germany Hensler, Germany MURR Moore, Germany Schmersal SCHMERSAL, Germany SAMSON Samson, Germany EPRO Emerson\'s

USA MOOG, USA ASCO Solenoid Valve, USA MAC Solenoid Valve, USA NUMATICS Newmantic, USA PARKER Pneumatic Hydraulics, VICKERS in the United States, ROSS in the United States

NORGREN in the United Kingdom

OMAL in Italy, ATOS in Italy, Italy CAMOZZI, UNIVER, Italy, CAMOZZI

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