G3/4 DC12V Pressure-Free Normal Closed Plasti...

DescriptionG3/4 DC12V Pressure-Free(Direct acting) Normal Closed Plastic Solenoid Valve requires no minimum operating pressure or pressure difference, so they can be used from 0 bar up to the maximum allowable pressure. It is typically used for relatively small flow rates. This is a G3/4 DC12V Pressure-Free Normal Closed Plastic Solenoid Valve that you can use to control  the flow of a liquid using your computer or microcontroller.DescriptionName:3/4” DC 12V Solenoid Valve Material: PP plastic Voltage: DC 12V Current: 1A Operation model: Direct acting normally closed (N/C) Pressure: about 0 – 0.01Mpa(No pressure) Port size: about G3/4” Fluid temperature: about 0-90℃ Size: Total length: 72mm Total width: 36mm Total height: 57mm Thread: G3 / 4 “male thread Thread length: 17mm Fixed pitch: 25 * 25mmG3/4 DC12V Pressure-Free(Direct acting) Normal Closed Plastic Solenoid Valve Working PrinciplesFigure 7DC12V Pressure-Free(Direct acting) solenoid valves have a simple working principle, which can be seen in Figure 7 along with the components. For a normally closed valve, with no power the plunger (E) blocks the orifice with the valve seal (F). A spring (D) is forcing this closure. When power is applied to the coil (A), it creates an electromagnetic field, attracting the plunger up, overcoming the spring force. This opens the orifice and allows the media to flow through.The maximum operating pressure and flow rate are directly related to the orifice diameter and the magnetic force of the solenoid valve. Therefore, a Free pressure (direct acting) solenoid valve is typically used for relatively small flow rates. Direct operated solenoid valves require no minimum operating pressure or pressure difference, so they can be used from 0 bar up to the maximum allowable pressure.