It is an electro magnetically controlled mechanical valve used for the ON/OFF(open/closed) or diverting control of liquid or gas media.
A solenoid valve is an electromechanical device used for controlling liquid or gas flow. The solenid valve is controlled by electrical current, which is run through a coil. When the coil is energized, a magnetic field is created, causing a plunger inside the coil to move.  The stem of the valve is connected to the plunger of the solenoid valve. When the current passes though the coil, the plunger moves inside the hollow spaces, causing the motion of the stem of the valve and controlling the opening of the orifice. The various parts of the solenoid valve are shown in the figure below. The solenoid valve is the electromechanical valve comprising of the solenoid coil and a plunger which is connected to the stem of the valve. In solenoid valves the core around which the insulated coil is wound is hollow. (December 2009). Solenoid valves. A solenoid valve is an electromechanically operated valve. The valve is controlled by an electric current through a solenoid: in the case of a two-port valve the flow is switched on or off; in the case of a three-port valve, the outflow is switched between the two outlet ports. Similarly, if the valve is closed when the solenoid is not energized, then the valve is termed normally closed. There are also 3-way and more complicated designs. A 3-way valve has 3 ports; it connects one port to either of the two other ports (typically a supply port and an exhaust port). The solenoid valves are used to control the flow of the liquid or the gas (called as fluids) in the pipeline or in certain process. The solenoid valve is the electromechanical valve comprising of the solenoid coil and a plunger which is connected to the stem of the valve. In solenoid valves the core around which the insulated coil is wound is hollow. **Always follow the instructions in your repair manual when doing repair or maintenance work on Outdoor Power Equipment. Manuals can be found at the manufacturers website.**. Solenoid fuel shut off valves are used to close the main jet or main fuel circuit in the carburetor when the key is turned off. The solenoid valve works by using a spring loaded plunger to press against the main fuel circuit passage and prevent fuel from entering the passage.  A solenoid valve is an electro magnetically controlled mechanical valve used for the ON/OFF (open/closed) or diverting control of liquid or gas media. Solenoid valves are available with a number of port configurations. The most common solenoid valve is a 2/2 way or 2 port 2 position solenoid valve with 1 inlet port and 1 outlet port for simple ON/OFF or Open/Closed media flow control. Mounted above the solenoid valve is the solenoid coil (electro magnet) which are usually marked with the rated voltage, manufacturers name and CE marking for use within the European community, ED and power consumption. This electro magnet sometimes referred to as the coil, solenoid or bobine. ASCO Valve's Fuel, Gas & Oil solenoid valves handle combustion system pilot & main line fuel shutoff & control needs. Our Fuel, Gas & Oli solenoid valves are available in 2-way normally closed, normally open, manual reset, and 3-way diversion.  A solenoid valve is an electromechanical valve frequently used to control the flow of liquid or gas. Definitions Solenoid valves are found in many applications and are commonly used inrefrigeration and air conditioning systems. Their function is simply to turnrefrigerant flow on and off.  Shares & Saves. Save. A solenoid valve controls the flow of gas or other fluids, while a solenoid coil is energized by an electric current that creates a magnetic field. When the coil in a fuel solenoid is energized, it causes a plunger inside the coil to move, activating the valve. Valve Types. Solenoid valves can be classified by the normal state of the valve. In a normally-closed valve, the valve is closed by default. When the coil is energized the valve opens, and when power is removed from the coil it closes.
http://www.solenoid-valve-info.com/solenoid-valve-definition.html http://www.brighthubengineering.com/manufacturing-technology/56267-what-is-solenoid-valve/ https://en.wikipedia.org/wiki/Solenoid_valve http://www.brighthubengineering.com/manufacturing-technology/56267-what-is-solenoid-valve/ http://www.youtube.com/watch?v=Kr6UayxyVwU http://www.connexion-developments.com/what-is-a-solenoid-valve.html http://www.ascovalve.com/Applications/Products/FuelGasOilSolenoidValvesData.aspx http://www.emersonclimate.com/asia/en-AP/WhitePapers/2007FC-23%20R1.pdf http://www.ehow.com/facts_7795126_fuel-solenoid.html
what is gas solenoid valve