Row of helium valves

Overview Row of helium valves is one of the important signs diving watch, usually hidden button appears in the form, in order to discharge helium in the table, to balance the pressure difference between inside and outside the watch role. Origin watches in the process of diving, with the increase of water pressure, helium molecules in water than under water molecules, tiny helium molecules will be under the action of strong pressure squeeze into the case from the table gap At this point the pressure inside the case gradually increased, has reached the basic balance of internal and external pressure. This watch in the deep water can be well waterproof and prevent the table fragmented shell deformation. When the diving is completed floating process, the external water pressure decreases rapidly, while the case of helium molecules are difficult to rule out an instant, forming a huge pressure difference, the pressure difference can be enough to table Mengding fly! In order to solve this problem, all the dive tables are equipped with a row of helium devices in order to promptly exclude the helium molecules in the case during the ascent to keep the pressure inside and outside equal. How it works: 1. In the normal state of the helium valve discharge from the top of the inner rubber ring for waterproofing, when the valve is locked without this feature. 2. Loosen the valve, the device is in a decompression state. At this point the valve can also guarantee the watch's seal. 3. When the pressure in the gauge is greater than the pressure outside the gauge, the rubber ring beneath the valve interior will be withdrawn to release the gas. Once the pressure is equalized, the lower rubber ring will be pushed back to its original position by the spring. And the decompression process will be repeated many times. 4. When the internal and external balance, lock the valve.

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