PARKER proportional valve TDA040EW09B2NXW in stock

PARKER's main product introduction:

PARKER proportional valves control flow in two ways:

One is on/off control: either fully open or fully closed, the flow is either at its maximum or minimum, with no intermediate state. Examples include 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 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 upstream control circuit.

PARKER Proportional Valve Structure and Principle:

When the input signal to the PARKER proportional 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 through the SUP port and valve 1. The pilot chamber pressure rises, and this 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 demonstrating that the output pressure changes proportionally to the change in the input signal. Because there is no nozzle-baffle mechanism, the valve is insensitive to impurities and has high reliability.

PARKER Proportional Valve Features:

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

2) Enables remote 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) It uses less power, generates less heat, and produces less noise.

6) It will not cause a fire and will not pollute the environment. It is less affected by temperature changes.

PARKER Hannifin Corporation (NYSE: PH) is an industrial company headquartered in the United States. Since its founding in 1918 by Mr. Arthur L. Parker, Parker Hannifin has grown into the world's largest and most diversified company in the field of motion and control.

PARKER Hannifin is a global motion control manufacturer dedicated to providing products and customer services. As one of the NYSE 500 companies (NYSE: PH), it has more than 1,400 production lines for components and systems, serving more than 1,000 industrial and aerospace applications in motion control. Parker Hannifin is a manufacturer that provides customers with hydraulic, pneumatic, and mechatronic motion control solutions. The company boasts the largest sales network in its field, with over 7,500 distributors serving 400,000 customers worldwide.

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PV180L1L1T1N2CC 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