Hyun is that in addition to basically using the App on the smart phone to open and close the door, the company has also developed a "click" function to unlock the phone in the pocket. And when the trusted device is near the door lock, the Sesame Wisdom Door Lock can also be unlocked automatically by recognizing the knocking sound of the door, which is quite interesting. In addition, it also supports auto-locking, voice control features, and can provide 500 days of battery life support (will take the initiative to notify the power will be insufficient, using the CR123A battery). Continue to read further and watch the original video.
Valves are found in virtually every industrial process, including water and sewage processing, mining, power generation, processing of oil, gas and petroleum, food manufacturing, chemical and plastic manufacturing and many other fields.
People in developed nations use valves in their daily lives, including plumbing valves, such as taps for tap water, gas control valves on cookers, small valves fitted to washing machines and dishwashers, safety devices fitted to hot water systems, and poppet valves in car engines.
In nature there are valves, for example one-way valves in veins controlling the blood circulation, and heart valves controlling the flow of blood in the chambers of the heart and maintaining the correct pumping action.
Valves may be operated manually, either by a handle, lever, pedal or wheel. Valves may also be automatic, driven by changes in pressure, temperature, or flow. These changes may act upon a diaphragm or a piston which in turn activates the valve, examples of this type of valve found commonly are safety valves fitted to hot water systems or boilers.
More complex control systems using valves requiring automatic control based on an external input (i.e., regulating flow through a pipe to a changing set point) require an actuator. An actuator will stroke the valve depending on its input and set-up, allowing the valve to be positioned accurately, and allowing control over a variety of requirements.
Stop Valves, Ball Cock, Angle Valves, Gate Valves, Check Valves
ZHEJIANG KINGSIR VALVE CO., LTD. , https://www.kingsirvalves.com