ATOS proportional valve DKZOR-TEB-SN-NP-171-L5/I in stock

Brand

ATOS/Italian Atos

ATOS proportional valves control flow in two ways: One is on/off control: either fully open or fully closed, with flow either at its 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 port 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 electronically (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 pre-stage control circuit.

Differences between ATOS proportional valves and servo valves:

Mainly reflected in the following points:

1. Different drive devices. 1. **Differences in Driving Mechanisms:** Proportional valves are driven by proportional electromagnets; servo valves are driven by force motors or torque motors.

2. **Differences in Performance Parameters:** Hysteresis, dead zone, bandwidth, and filtration accuracy differ, leading to different applications. Servo valves and servo-proportional valves are primarily used in closed-loop control systems, while other types of proportional valves are mainly used in open-loop control systems and closed-loop speed control systems.

2.1 Servo valves have no dead zone at mid-position, while proportional valves do.

2.2 Servo valves have a higher frequency response, reaching up to approximately 200Hz, while proportional valves typically 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. **Differences in Valve Core Structure and Machining Precision:** 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. **Differences in Mid-Position Functions:** Proportional directional valves have a neutral position function similar to ordinary directional valves, while servo valves only have an O-type neutral position function (E-type for Rexroth products).

5. The rated pressure drop of the valves differs.

Italy

ATOS Proportional Valve Commonly Used Stock List:

DKZOR-A-173-L5

DKZOR-A-173-L5/18 40

DKZOR-A-173-L5/Y

DKZOR-A-173-S3

DKZOR-A-173-S5

DKZOR-A-173-S5/18

DKZOR-AE-171-L5 10

DKZOR-AE-171-S5

DKZOR-AE-171-S5 10/WG

DKZOR-AE-171-S5/Y 10

DKZOR-AE-173-D5 10

DKZOR-AE-173-L5 10

DKZORC-A-151-S5/18

DKZOR-T-151-L5 DKZOR-T-151-L5/Y

DKZOR-T-153-L5

DKZOR-T-171-D5

DKZOR-T-171-L5

DKZOR-T-171-S5

DKZOR-T-171-S5/Y

DKZOR-T-173-L5 40

Our company mainly deals in European and American brands and can purchase brands from any European country. For example, our advantageous 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: Henstler, Murr, Schmersal, Samson, EPRO (Emerson Group)

American brands: MOOG, ASCO, MAC, NUMATICS, PARKER, VICKERS, ROSS

British brands: Norgren

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