Working principle of flange solenoid valve, application and parameters of flange solenoid valve

Flange solenoid valve applications Flange solenoid valves are suitable for automatic control of pipelines such as water, gas, gas, nitrogen, oil, and various liquids or gases;solenoid valves are widely used in industrial kilns, drying equipment, shipbuilding heavy industry, and petrochemical industries. , water supply and drainage, fire protection equipment, cleaning equipment, landscape sprinkler irrigation, humidification equipment, hydraulic equipment, testing equipment, water plants, pipeline medium automation control and other fields;it is a product for automation control engineering, project transformation and equipment matching. Flange solenoid valve parameters product specifications: DN0.5~DN300. Applicable media: gas, water, oil, corrosive fluid, etc. Control mode: normally closed, normally open, self-maintaining. Valve body material: stainless steel. Power supply voltage: DC12~220V AC24~380V. Pressure range: 6.4-300mpa. Medium temperature: (-50) ~ (+120, +200)℃. Connection method: flange. Medium viscosity: less than 50Cst (if greater than 50Cst, customization is required). Protective performance: dustproof, waterproof, explosion-proof, selected according to working conditions. Wiring method: terminal block type;lead type;plug type. Leakage: zero. Working Principle of Flange Solenoid Valve Flange solenoid valve is a pilot-operated secondary opening solenoid valve composed of two parts: auxiliary valve and main valve. It relies on the opening and closing of the auxiliary valve to control the on and off of the main valve. According to the different switching states when the power is off, it can be divided into normally closed solenoid valves and normally open solenoid valves. Normally closed solenoid valve, when the power is off and in the normal position, the auxiliary valve port is closed and the main valve is open circuit. When the electrical signal enters the pilot valve coil, the movable iron core is attracted by the electromagnetic force to open the auxiliary valve port. The pressure disappears quickly, and the medium pressure lifts the main valve cup, opens the main valve port, and the working medium can flow. But when the electrical signal disappears, the movable iron core resets and seals the auxiliary valve port. The working medium enters the valve cup from the balancing hole. When the pressure tends to be balanced, the main valve spring, the valve cup's own weight and the medium pressure make the valve cup lower. Move, sealing the main valve port tightly, and the valve is closed again. The normally open solenoid valve is in the normal position when the power is turned off, and the auxiliary valve port is opened by the action of the spring, allowing the main valve to flow. When the electrical signal enters the auxiliary valve coil, the movable iron core is sucked down by the electromagnetic effect, and the auxiliary valve port is closed. The working medium of the medium temperature solenoid valve enters the valve cup through the balance hole. When the pressure tends to be balanced, the main valve spring and valve cup The dead weight and medium pressure cause the valve cup to move downward, sealing the main valve port tightly, and the valve is in a closed state. When the main valve is powered off, the electromagnetic force disappears, the auxiliary valve opens, the pressure in the main valve cup disappears quickly, and the medium pressure holds the main valve cup up, opening the main valve port, the medium flows, and the valve is in an open state. Another principle: when the solenoid valve solenoid is energized, the connecting rod is lifted, driving the rotating shaft to rotate, and the auxiliary valve opens. Because the auxiliary valve is opened, the pressure fluid in the upper part of the main valve cup is discharged, so the pressure in the lower part of the main valve cup is higher than the upper part, so that the pressure in the lower part pushes the main valve cup upward. After the main valve is opened, the upper and lower pressures are equal, and the valve cup is placed in a balanced state under the action of electromagnetic force and upper and lower pressures, and the valve is opened. When the power is off, the auxiliary valve is closed under the action of the armature's own weight and the return spring. After the auxiliary valve is closed, the pressure at the upper part of the main valve cup increases and the main valve cup is pressed down to achieve a flow-breaking sealing effect, and the valve is closed. . The above is the working principle of the flange solenoid valve, the application and parameters of the flange solenoid valve. If you want to know more relevant information, please log in to Sunway Pneumatic www.diancifa.cc.