F - Mech Eng,Light,Heat,Weapons – 16 – K
Patent
F - Mech Eng,Light,Heat,Weapons
16
K
F16K 15/00 (2006.01) F16K 17/04 (2006.01) F16K 31/126 (2006.01)
Patent
CA 2596313
The Pressure Valve can control the passage that the source pass through. The effective area of the measuring element is smaller before the valve opens, and the effective area of the measuring element is larger when the valve opens. Higher source pressure is needed to open the valve and lower source pressure is needed to keep it open. The magnetic force between the magnet and the diaphragm attracts the diaphragm toward the magnet, the force is much stronger when the diaphragm contacts the magnet. With the help of magnetic force, the source pressure needs to go down more to make the spring force to overcome the magnetic force and source pressure, the valve close at lower source pressure. It provides a method to prevent fluid from flowing from target end to the source end when the source pressure goes down to certain level. The Pressure Valve is designed for expansion tank of a boiler system. With the Pressure Valve, an expansion tank can be pre--presurized with vapor, and will have more capacity.
Na
Yang Jianming
LandOfFree
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