BURKERT solenoid valve uses a once-open valve and secondary valve to connect in one body. The main valve and the pilot valve step by step make the electromagnetic force and pressure difference directly open the main valve port. When the coil is energized, an electromagnetic force is generated to cause the moving iron core and the static iron core to pull in. The pilot valve port is opened and the pilot valve port is disposed on the main valve port, and the moving iron core is connected with the main valve core. At this time, the main valve is The pressure of the chamber is unloaded through the pilot valve port. Under the action of pressure difference and electromagnetic force, the main valve core moves up and the main valve medium is opened to circulate. When the coil is de-energized, the electromagnetic force disappears. The power core closes the main valve under the action of its own weight, spring return and pressure, and the medium is cut off. Reasonable structure, reliable operation, reliable operation at zero differential pressure, and reliable operation at zero differential pressure. Such as: ZQDF, ZS, 2W.
The concept and equipment of BURKERT solenoid valve repair and maintenance are lacking. At present, only nuclear power plants in China can basically perform maintenance on all valves during each shutdown. Broken repair is a kind of maintenance-free maintenance, which is extremely unfavorable for the safe operation of the whole set of equipment and the service life of the valve. The potential for emergency shutdown accidents is extremely dangerous, and the resulting losses are also enormous. .
If the valve of BURKERT solenoid valve is leaked without maintenance, the damage is very serious. This not only increases the difficulty of repair, but also often even has the possibility and value of maintenance. Therefore, for the organization and management of valve maintenance work, not only the relevant personnel should have a corresponding awareness, but more important is the preventive and maintenance measures, that is, regular inspection of the valve (for example, the valve is sealed against the outside world, Valves closed in the closed state, etc.). The key to preventive maintenance of the valve is to repair the valve immediately when the valve is found to be leaking for the first time, because the circulating medium can cause the sealing surface in a short time even if the tiny sealing surface is damaged. The large area of ​​damage, resulting in costly maintenance costs BURKERT solenoid valves are normally closed and normally open type. Normally closed type when the power is off, when the coil is energized, electromagnetic force is generated, so that the moving core overcomes the spring force and the static iron core directly opens the valve and the medium is the passage; when the coil is powered off, the electromagnetic force disappears, and the moving iron disappears. The core is reset under the action of the spring force, and the valve port is closed directly, and the medium is blocked. Simple structure, reliable operation, normal operation under zero differential pressure and micro vacuum. Normally open type is the opposite. If less than φ6 flow path solenoid valve.
The concept and equipment of BURKERT solenoid valve repair and maintenance are lacking. At present, only nuclear power plants in China can basically perform maintenance on all valves during each shutdown. Broken repair is a kind of maintenance-free maintenance, which is extremely unfavorable for the safe operation of the whole set of equipment and the service life of the valve. The potential for emergency shutdown accidents is extremely dangerous, and the resulting losses are also enormous. .
If the valve of BURKERT solenoid valve is leaked without maintenance, the damage is very serious. This not only increases the difficulty of repair, but also often even has the possibility and value of maintenance. Therefore, for the organization and management of valve maintenance work, not only the relevant personnel should have a corresponding awareness, but more important is the preventive and maintenance measures, that is, regular inspection of the valve (for example, the valve is sealed against the outside world, Valves closed in the closed state, etc.). The key to preventive maintenance of the valve is to repair the valve immediately when the valve is found to be leaking for the first time, because the circulating medium can cause the sealing surface in a short time even if the tiny sealing surface is damaged. The large area of ​​damage, resulting in costly maintenance costs BURKERT solenoid valves are normally closed and normally open type. Normally closed type when the power is off, when the coil is energized, electromagnetic force is generated, so that the moving core overcomes the spring force and the static iron core directly opens the valve and the medium is the passage; when the coil is powered off, the electromagnetic force disappears, and the moving iron disappears. The core is reset under the action of the spring force, and the valve port is closed directly, and the medium is blocked. Simple structure, reliable operation, normal operation under zero differential pressure and micro vacuum. Normally open type is the opposite. If less than φ6 flow path solenoid valve.
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