Solenoid valve in this paper, the literature on industrial automation
Industrial automation solenoid valve solenoid valve in this paper, the literature instruction Internet admin time stainless steel solenoid valve is a kind of electromagnetic valve, it is an industrial process automation control system with actuator.
It in an electronic signal automatically switched on or off, after the implementation of liquid medium in the pipeline on-off or throttling control.
This valve is a step-by-step action guide type solenoid valve normally closed directly, after electrify armature coil to drive the small valve open, large valve in formation of the medium under the action of pressure difference and the electromagnetic force and open it.
Guiding type solenoid valve solenoid valve specification electricity, electromagnetic force open the pilot hole, the chamber pressure drops rapidly, in closed form around the high low differential pressure, fluid pressure push close up, the valve open;
Power off, the spring force to close the guide hole, inlet pressure chamber through the by pass hole quickly in closing valve using a form around the high differential pressure, fluid pressure push close move down, close the valve.
In conclusion, we can know, wear and lubrication of the valve core, the electromagnet field coil short circuit or open circuit, the elasticity of the spring failure, will be the cause of electromagnetic valve failure.
Together with the contactor and relay failure and working voltage of power supply and the frequent use, improper maintenance is the external cause.
Type cannot be used in explosive dangerous places.
In the pipes under rigid, recommend to use before and after the valve pipe bracket, when the solenoid valve work in case caused by vibration.
Install solenoid coil up, and keep the vertical position, the arrow or mark in the solenoid valve should be consistent with the pipe flow, shall not be installed in places with splashing water or water leakage.
Before installation, pay attention to see the product sign, read the instruction for use, to determine whether a product conforms to the conditions of use.
Solenoid valve on the pipeline before and after the need to install pressure gauge, in order to observe the pipe pressure.
In order to prevent the electromagnetic valve explosion and leakage.
Before install solenoid valve, pipe must be clean.
Advice before the valve installed filters, steam piping installation steam trap.
Solenoid valve specifications do not install the valve in the pipeline dips, lest because of steam condensation water, impurities such as precipitation within the valve and prevent action.
The working medium of solenoid valve should be clean and no impurity particles, electromagnetic trims on the surface of the dirt and filters, must be clean regularly.
In the electromagnetic valve failure occurs, in order to timely isolation solenoid valve, and ensure the normal operation of the system, install bypass device aware of the bypass valve must be closed at ordinary times.
If the solenoid valve is installed on the bracket, electromagnetic valve size should be less than competent on valve.
Application range widely used in textile, printing, chemical, plastic, rubber, pharmaceutical, food, building materials, machinery, electrical appliances, surface treatment and other production and scientific research departments and the bathroom, dining room, air conditioning and other facilities in People's Daily life in this valve directly guide for step-by-step moves normally closed electromagnetic valves, after electrify armature coil to drive the small valve open, large valve in formation of the medium under the action of pressure difference and the electromagnetic force and open it.
Coil power, reset armature parts, size valve using medium pressure and tight shutoff.
Solenoid valve specification is solenoid valve with electromagnetic control of industrial equipment, is a kind of industrial valves, used to control the fluid automation components, belonging to the actuator, is not limited to hydraulic, pneumatic.
In the industrial control system, is used to adjust the direction of the medium, flow, speed and other parameters.
Solenoid valve is a kind of change flow direction to realize oil of directional control and on-off control electrical appliances.
In nc machine tool, the electromagnetic valve is widely used in the tool post moves, the spindle tool change and workbench exchange of hydraulic control system.
Solenoid valve can through different cooperate to achieve the desired control circuit, the control precision and flexibility to be able to guarantee.
Solenoid valve, electromagnetic valve, there are many kinds of different work in different position of the control system, commonly used is a one-way valve, safety valve, direction control valves, speed regulator, etc.
Works normally closed when the coil current, electromagnetic iron core, absorption pressure relief hole is opened, the piston driven by medium pressure, open the main valve mouth, medium circulation.
When the coil power, the main valve closed mouth, medium.
Normally open when the coil current, electromagnetic iron core, absorption pressure relief hole closed, the piston driven by medium pressure, close the main valve mouth, medium.
When coil power, the main valve to open the mouth, medium circulation.
Solenoid valve specifications electromagnet after electrify, connecting rod was promoted, as the rotation axis, the movement on the pilot valve and main valve open;
, when the power is in the role of armature self-respect and return spring, and a half on the pilot valve, pilot valve is turned off, close the main valve by pressure difference.
Normally closed when energized coil, pilot valve core and off, open the guide hole, pressure relief valve, piston, powered by inferior vena medium pressure solenoid valve open;
When coil power, pilot valve core by spring reset, the guide hole closed, valve cavity by a piston booster orifice and reset spring of thrust, valve closed.
Normally open when the coil current, the guide hole closed, valve cavity by a piston booster orifice and reset spring of thrust, electromagnetic valve is closed.
When the coil power, pilot valve core by spring reset, open the guide hole, cavity pressure relief valve, piston, powered by inferior vena medium pressure solenoid valve to open.
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