At present, there are a variety of lock products in the domestic market, including mechanical locks, sensor locks, code locks, and fingerprint locks. The functional principles and technical applications of each product are different. The mechanical lock is the lock with the lowest technical content, and it is also the most used lock currently used by every family. The key is the only normal opening tool. The sensor lock and password lock are often used in business and public spaces such as hotels and guesthouses. Password lock is a good helper for many companies to conduct gated management. Fingerprint lock is the highest technology content lock, high-end fingerprint lock products will be "fingerprint, password, mechanical key, remote control," and many other open technology in one, is the latest generation of intelligent security system leader, can be a good satisfaction The user's security needs. So, what advantages does fingerprint lock have over traditional mechanical locks? It can better satisfy consumers. 1, mechanical locks need to use the key to open the door, therefore, insert the opening part of the keyhole must be exposed, which also allows thieves have a chance. Unlike mechanical locks, fingerprint locks require the use of fingerprints or passwords to open the door. His collection is outside the door, and the central control part is inside, so you don't have to worry about the malicious destruction of the thief. Fingerprint lock adopts biometric technology. It uses the human body's certain physiological or behavioral characteristics to identify the identity. It has the characteristics of irreplaceable, non-replicable and uniqueness. Because the biometric technology needs to sense various physiological characteristics such as finger temperature, lines, and blood flow, the fingerprint replication technology can only be successful in movies, and it cannot be realized in the real world. 2. First, mass storage of fingerprints and password information. The initial user can autonomously add or delete user information. When the user needs to add a starter license for more than one person, he only needs to enter the fingerprint or password information of the other person into the system. On the other hand, when the user wants to prevent certain people (such as the decorator, the former nanny, etc.) from entering the home, his related information can be deleted. The intelligent operation does not require the user to constantly change the lock or key and saves the user unnecessary expenses and troubles. Second, the simultaneous use of passwords and magnetic card technology. Considering that some users have inherent flaws in their fingers, they cannot use the fingerprint opening technology. High-end fingerprint lock products are equipped with passwords and magnetic card technologies, which can be easily used by users of different habits and ages. And these three technologies do not affect each other, complement each other, and can better serve users. 3, according to the national standard of fingerprint lock, fingerprint lock factory must have a mechanical fingerprint lock, that is, in addition to fingerprint lock unlock, you can also use the key to open the door, but the installation of the Super B-level fingerprint lock for the thief, can only Forgot to lock up and sigh, not a few minutes do not even want to open; and Holmes fingerprint lock has a flood alarm function, if someone locks, it will automatically issue an alert, so that the thieves can not start, thus ensuring user safety. 4, the convenience of fingerprint lock is reflected in any person at any time will not worry about opening the door. Whether you forgot your keys, you are still unable to open the door with your hands full of objects, or you are drunk enough to remember where the keys are, you can use fingerprint locks to avoid these situations. For young people who love fashion technology, the use of fingerprint locks greatly enhances their experience with smart home life. Especially in today's rapid development of electronic technology, the use of fingerprint locks will be better linked with smart communications such as mobile phones, becoming the first port to open smart homes in the future. Article : Installing a fingerprint lock is not only convenient and stylish Recommended : Smart Wireless Home Smart Home Chain Smart Home Villa
Butterfly valve is a simple structure of the control valve can be used for low-pressure pipeline media control switch.Butterfly valve means the closure (valve flap or disc) as a disc, rotating around the valve shaft to open and close.Butterfly Valves can be used to control the flow of various types of fluids such as air, water, steam, corrosive media, slurries, oils, liquid metals and radioactive media. Mainly in the pipeline cut off and throttling effect. Butterfly valve opening and closing pieces is a disc-shaped disc, the valve body around its own axis of rotation, so as to achieve the purpose of opening and closing or regulation.
Type: Wafer Type, Lug Type, Grooved type
Design Pressure: PN6-PN20,Class 125-Class150
Working Temperature: EPDM 16Bar at -10℃ to 120℃; NBR 16Bar at -10℃ to 82℃; Viton 16Bar at -10℃ to 150℃
Suitable Midium: Water,Oil,Gas
Details as follow drawing:
Butterfly Valves Butterfly Valves,Wafer Type Butterfly Valve,Lug Type Butterfly Valve,Cast Iron Butterfly Valve HEBEI ZIFENG NEW ENERGY TECHNOLOGY CO.,LTD. , https://www.zifengpipeline.com
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3.Grooved Type Butterfly Valve
