VICKERS proportional valve spot supply in the United States

NegotiableUpdate on 05/11

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Nature of the Manufacturer: Producers

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Overview

VICKERS in the United States provides spot supply of Vickers proportional valves, while Dongguan Guanglian Automation Technology Co., Ltd. provides Vickers proportional valves with fast delivery and guaranteed after-sales service. We have established long-term supply and trust relationships with major Vickers distributors, production supporting factories, and customers in China. At the same time, in order to shorten the supply period and ensure the personal interests of customers, a special inventory of VICKERS commonly used spare parts has been established. VICKERS proportional valves are suitable for applications with working pressures up to 350 bar (5000 psi) and flow rates up to 200 l/min (53 US gpm).

Product Details

VICKERS proportional valve spot supply in the United StatesThe proportional directional valve is directly equipped with a control amplifier and has been pre wired with the valve. The factory settings adjustments for gain, spool compensation, flutter, and bias ensure good repeatability between valves. The pin of the valve core position detector enables electrical detection of the valve's status. There are options for enhanced valve function and pilot pressure reducing valve. Disassembly and replacement are more convenient during maintenance.

1. Supported by a wide range of amplifiers and functional modules.

2. Complete CE electromagnetic compatibility.

3. After factory adjustment, sealing is added to improve the accuracy between valves.

4. Reducing or simplifying installation wiring.

5. The selection range of valve core and flow rate is wide.

6. The electrical feedback differential transformer ensures precise control of the valve core position.

7. The built-in current feedback ensures optimal control.

8. After vibration and impact testing.

VICKERS proportional valves are flow type four-way or five way proportional control valves that can control the movement speed of pneumatic actuators in two directions. These types of valves are also known as directional proportional valves. The schematic diagram shows the structural principle of this type of valve. It is supported by DC proportional electromagnet 1, valve core 2, valve sleeve 3, valve body 4, displacement sensor 5, and control amplifier 6. The displacement sensor adopts the principle of inductance, and its function is to linearly convert the displacement of the armature of the proportional electromagnet into a voltage signal output. The main function of a control amplifier is to:

1) Amplify the output signal of the displacement sensor;

2) Compare the instruction signal Ue with the displacement feedback signal Uf to obtain the difference U between the two; 3) amplify U and convert it into a current signal I for output. In addition, in order to improve the performance of the proportional valve, the control amplifier also includes a processing element for the feedback signal Uf and the voltage difference U. For example, state feedback control and PID regulation.

VICKERS proportional valve spot supply in the United States， The reliability of VICKERS proportional valves is the most important aspect in servo systems. The contamination of servo valves is the primary cause of their failure. In response to this, many foreign manufacturers have made improvements to the structure of servo valves and have developed jet tube and biased jet servo valves with good pollution resistance. Moreover, Russia has designed dual redundant position sensors at both ends of the jet tube servo valve spool developed by it to detect the spool position. Once a fault signal occurs, the backup servo valve can be immediately switched, greatly improving the reliability of the system. This dual redundancy technology has been widely used in the industry.