Solenoid valve

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solenoid control valve - China Manufacturer

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solenoid directional valve Action
Transformation heart valve in the valve body relative to the working position, the oil port of the valve body connected or disconnec ted, the actuator to control commutation or the start and stop.
Performance requirements
1 commutation performance within the specified operating conditions, the solenoid valve is energized can reliably commutation, can reliably reset after power failure. (2) the pressure loss by the solenoid valve pressure loss of fluid flow through the valve port solenoid valve flow generated when the throttling losses and loss

Missing components. 3 solenoid valve of the internal leakage amount is the amount of internal leakage in the specified operating conditions, in different working positions, from the high pressure chamber to the low pressure chamber of the amount of leakage. 4 commutation and reset time from the solenoid valve is energized to terminate the commutation

The time required for the reset time is the power from the electromagnetic valve to return to the initial position to the desired time. 5 commutation frequency in the unit time by the max imum number of 6 commutation. Life to the primary solenoid valve with damaged parts, can not be positive

Normal commutation and reset action, or to its main performance indicators deteriorated significantly exceeds the specified index experienced commutation times.
Classification
A wide variety of solenoid valve, according to their number of operating positions and the number of how many channels can be divided into two three-way, two-way, three-way, etc.; their reset and positioning can be divided into spring return, steel ball positioning, without reset spring; accordance with the solenoid valve

The connection can be divided into flanged and threaded connections; press it with electromagnet structure can be divided into dry and wet, each of which have AC, DC, the entire form, and the required power supply voltage and has a good variety, which in its structure, there are many differences

. 1 Press the number of interfaces and switc hing position classification interface refers to the number of valves on a variety of tubing connected to the inlet and outlet, the inlet is usually labeled as P, oil return port is labeled as R or T, the oil port places A, B to represent. Valve spool movable Number of Positions Number of Positions called switch, normally I

We will interface is called a "pass", the spool position is called a "bit." Therefore, according to their number of operating positions and the number of how many channels can be divided into two three, two-way, three-way, etc. (2) Classification by mode of operation to promote the movement of the valve spool with a hand power

, Feet, mechanical, hydraulic, electromagnetic and other methods. 3 categories according to their form of reset and positioning can be divided into spring return type, steel ball positioning, no reset spring. 4 in accordance with the form of the body and the solenoid connections can be divid ed into categories and threaded flange

Connection. 5 Press with solenoid structure their classification can be divided into dry and wet. Classify it: according to the form of the structure: poppet-type valve, spool-type valve, rotary valve type valve
Edit this paragraph structure types
In the hydraulic system is widely used in spool type valve, this valve in here introduces several structures. 1 manual valve: manual valve is to use the manual lever to change the spool position to achieve commutation of two. Motorized valve: also known as OK

Way valve, it is mainly used to control the stroke of hydraulic mechanical moving parts, which is mounted on the table by means of a stopper or cams to force the spool is moved, so as to control the oil flow. Motorized valve is usually two, there are two-, three, four and five-pass

Several, including two two three-way motorized valve is divided into two kinds of normally closed and normally open. 3 solenoid valve: the use of an electromagnet pass, power directly promote the spool to control oil port connectivity state. 4 hydraulic valve 5. Electro-hydraulic valve: the solenoid valve and the hydraulic valve

Combination. Solenoid valve play a leading role, it can change the direction of the control flow, thus changing the position of the hydraulic valve. By operation of the hydraulic thrust of the hydraulic valve can be large, and the main valve can be made very large, allowing a greater flow rate through the

Too. This can be controlled with a small electromagnet larger flow. 6 proportional directional control valve is a proportional solenoid valve in the electromagnetic valve unit outside the electromagnetic force generated by the coil to control the movement of the spool, relying on the control coil current to control the direction of the valve the valve

Displacement of the core, it can control the oil flow direction and flow. Spool type valve 1 valve structure and working principle structure Body: multiple levels undercuts the cylindrical bore Spool: multiple segment ring groove cylinders classification work

Number of points for the position (relative to the valve body of the valve core operating positions): two, three, four points by the number of paths (the main body of external connection port number, not including controlling oil and drain port): two pass, three, four, five pass by control points:

Electromagnetic, hydraulic, electro-hydraulic, mechanical, manual graphic symbols meanings: 1 - a grid that several of the few squares 2 pass - ↑ nowhere - ┴, ┬ both arrows and symbols with a side intercept There are several intersection is a few grid

Pass. Three ports have a fixed orientation and meaning: p - inlet (left) T - back to the oil port (bottom right) AB - work connected with the actuator port (left and right) 2. Slide valve in median function slide val ve function: valve is in the normal position

The valve in the oil port connectivity way valve that is on the three middle way of the oil port connectivity, so called median function. Median function: three valve in the neutral position, the valve means of the communication ports.  two way solenoid valve