The first thing to say is that, in the re-use of security doors, first of all, they should be away from large metal or magnetic objects. This is what we want to pay attention to. The security door itself is a device that uses the magnetic field effect to detect metal objects. If a metal object is placed around it for a long time, uninterrupted false alarms will be triggered, which is not necessary for us. Then there is the life span and age of the equipment. When it exceeds the established working life, it will be scrapped. If there is a large magnetic object next to it, it will seriously affect the normal operation of the security door. It is recommended that you do not want to prevent large magnetic objects around.
The second point is rain protection. Some users in this area do not have to worry about it. The main reason is that they are all used to make our security doors in Xi'an. If you are not outdoors, naturally you don't need to consider this one. You should pay more attention to this, as opposed to the plant and the public security gates of the prosecutors and prisons. If you buy a rainproof security door, you must pay attention to this. Then you do not have to consider fruit. If it is not rain-proof, it should be far away from the accumulation of water or rain, and the security gate should be properly shielded. To prevent the chassis circuit board from burning out. Give you unnecessary trouble.
The third point is that there is no fixed security door, and there must be a special person next to the guard. Prevent the passing of personnel from being overcrowded, causing damage to security doors. So that the security door does not work properly. The fourth point is our day-to-day cleanup and maintenance of the security door surface. In accordance with the maintenance methods of general electronic equipment, we regularly check the security door panel and the mainframe, and whether the power supply wiring is loose. If there is a new fix in time. There is dust and dirt on the surface. In order to ensure the maximum efficiency of security doors and the most useful life.
The last thing to note is that there are still many details that we should pay attention to when using the security door. For example, when a person passes through, they must stick to a single pass. Don't let many people pass through at once and there is a mobile security door. The best place to use is to be flattened to prevent accidents, etc. These are all issues that we should pay attention to, but not every user will encounter it, so our security door in Xi'an again reminds security checkers to use Personal, if you encounter any problems in the use of security doors, you can not handle it, it is best not to unauthorized start the maintenance, contact us quickly after the staff to achieve the fastest and best after-sales service.
Check valve is to rely on the flow of the media itself and automatically open and close the valve flap, used to prevent the media back to the valve. Check valve is an automatic valve, its main role is to prevent media backflow, to prevent the pump and drive motor reversal, and the release of container media.
Material: Cast Iron, Ductile Iron
Type: Wafer, Flanged, Grooved
Standard: Class 250,200WOG .16Bar
Size: 2" to 24"
Application: Pipelines with Water, Oil, Gas.
All other details or types, please send free requirments.
2. Flanged Type:
3. Grooved type
Check Valves,Wafer Check Valves,Swing Check Vlaves,Ball Check Valve
HEBEI ZIFENG NEW ENERGY TECHNOLOGY CO.,LTD. , https://www.zifengpipeline.com