ATOS proportional valve AGMZD-A-10/100 in stock
$105.03
The main valve of the Italian ATOS proportional valve is generally a spool valve structure, just like the directional valve. However, the valve core is not driven by an electromagnet, but by the hydraulic pressure output by the pre-stage valve. This is similar to the electro-hydraulic directional valve, except that the pre-stage valve of the electro-hydraulic directional valve is an electromagnetic directional valve, while the pre-stage valve of the servo valve is a nozzle-baffle valve or jet valve with better dynamic characteristics.
Brand
ATOS/Italian Atos
ATOS proportional valve DKZOR-T-171-L5 in stock
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ATOS is a leading manufacturer of electro-hydraulic components, possessing advanced technology that enhances the performance of modern machinery through integrated hydraulic components with electronic components.
ATOS products include: hydraulic pumps, piston pumps, gear pumps, axial piston pumps, vane pumps, cylinders, relief valves, stack valves, solenoid valves, amplifiers, directional valves, pressure reducing valves, check valves, and control valves. ATOS proportional valves control flow in two ways: On-off control and continuous control. On-off control means the valve is either fully open or fully closed, with the flow rate either at its maximum or minimum, without intermediate states. Examples include ordinary solenoid direct-flow valves, solenoid directional valves, and electro-hydraulic directional valves. Continuous control allows the valve to open to any desired degree, thus controlling the flow rate. These valves can be manually controlled (e.g., throttle valves) or electrically controlled (e.g., proportional valves and servo valves). Therefore, the purpose of using proportional or servo valves is to achieve throttling control of flow rate electrically (and, with structural modifications, pressure control, etc., can also be achieved). Since it's 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.
ATOS vane pumps are pumps where vanes in the rotor slots contact the pump housing (stator rings), pushing the sucked liquid from the inlet side to the outlet side.
ATOS vane pumps are pumps where vanes in the rotor slots contact the pump housing (stator rings), forcing the sucked liquid from the inlet side to the outlet side. ATOS proportional valves actually have many disadvantages: high energy consumption, prone to failure, poor contamination resistance, high price, etc. Their only advantage is their highest dynamic performance among all hydraulic valves. This single advantage makes servo valves necessary in many applications with high dynamic performance requirements, such as aircraft and rocket servo control and turbine speed regulation. For applications with lower dynamic requirements, proportional valves are generally preferred.
ATOS proportional valve structure and working principle:
When the input signal increases, the supply solenoid valve pilot valve 1 switches, while the exhaust solenoid valve pilot valve 7 is 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, opening the supply valve core 4 connected to diaphragm 2 and closing the exhaust valve core 3, generating output pressure. This output pressure is fed back to the control loop 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 achieving a proportional change in output pressure to the input signal. Because it lacks a nozzle-baffle mechanism, the valve is insensitive to impurities and has high reliability.
ATOS proportional valve stock list:
DKZOR-A-153-L5/B
DKZOR-A-171-D5 40
DKZOR-A-171-L5
DKZOR-A-171-S5
DKZOR-A-171-S5/18
DKZOR-A-173-D5
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
DKZOR-TE-170-L5 40
DKZOR-TE-171-L5
DKZOR-TE-171-L5/I 40 DKZOR-TE-171-S5
DKZOR-TE-171-S5/Y
DKZOR-TE-173-L5 40
Our company mainly deals in European and American brands and can source 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: Hengstler, Murr, Schmersal, Samson, EPRO (Emerson Group)
American brands: MOOG, ASCO, MAC, NUMATICS, PARKER, Vickers, Helón (Norgren)
Italian brands: OMAL, ATOS, CAMOZZI, UNIVER, Camozzi
