Who has in stock Festo proportional valves in Germany

NegotiableUpdate on 05/26

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Overview

Who has a German Festo proportional valve in stock? $r $nfesto Pneumatic proportional control valve is a control valve that outputs pressure or flow proportional to the input signal (voltage or current), and can freely control the pressure or flow of air based on this input signal. It can be used for remote operation of potentiometers or for connecting control devices such as PCs to control the air pressure and flow of various actuators, with a wide range of applications.

Product Details

Who has in stock Festo proportional valves in Germany

Festo proportional valve also consists of two parts: ① electromechanical converter (mainly proportional electromagnet); ② Pneumatic valve section. The former can proportionally convert electrical signals into mechanical forces and displacements, while the latter can receive these mechanical forces and displacements and provide proportional and continuous outputs such as air pressure, flow rate, etc., thereby achieving the conversion process of electrical and pneumatic parameters. In short, a proportional valve is a valve that uses an electric mechanical converter instead of a conventional (on-off) pneumatic valve control handle, and uses an electric regulator instead of a manual regulator.

Proportional valves are divided into proportional pressure valves, proportional flow valves, proportional directional (directional flow) valves, and proportional composite valves according to their applications.

working principle

festoThe working principle of a proportional electromagnet is divided into two parts near the working air gap: Φ 1 and Φ 2 [Figure 4-59 (b)]. Among them, Φ 1 passes through the working air gap in the axial direction and enters the pole shoe, generating end face force, while Φ 2 passes through the radial gap and enters the front end of the guide sleeve, generating axial additional force. The displacement force characteristics of the proportional electromagnet are shown in Figure 4-59 (c). The attraction of an electromagnet depends only on the coil current, so by changing the magnitude of the input current to the electromagnet, the spool can be positioned at any position along its stroke corresponding to the input current, that is, at countless positions, which is different from a switch valve with only a limited number of positions.

Who has stock of Festo proportional valves in Germany? - Shanghai Maoshuo Machinery Equipment Co., Ltd. has a large inventory and good prices

Festo proportional electromagnets are divided into three basic types: force adjustment type, stroke adjustment type, and position adjustment type.

Figure 4-60 (a) shows the typical structure of a force regulating proportional electromagnet, which is mainly composed of an armature, a guide tube (sleeve), pole shoes, a housing, a coil, a push rod, etc. The front and rear sections of the guide sleeve are made of magnetic conductive material, and the middle section is made of non-magnetic material (magnetic isolation ring). The guide sleeve has sufficient compressive strength and can withstand high static pressure. The front section of the guide sleeve is combined with the pole shoe to form a bowl shaped pole shoe with a conical end. The angle of the inclined surface at the front end of the magnetic isolation ring and the relative position of the magnetic isolation ring determine the shape of the steady-state characteristic curve of the proportional electromagnet. A solenoid type control coil is installed between the guide sleeve and the housing. The front end of the armature is equipped with a push rod for outputting force or displacement; The rear end is equipped with a zero adjustment mechanism composed of springs and adjustment screws, which can adjust the steady-state control characteristic curve of the proportional solenoid and even the entire proportional valve within a certain range.