Foam fire extinguishing device, ground fire hydrant, outdoor fire hydrant manufacturer

Description :

　　structural principle

　　The main structure of the outdoor fire hydrant is shown in the figure, mainly composed of valve socket, lower valve body assembly, connecting pipe, fire hydrant shell (integrated with the hydrant and cannon) and other components. Fire water cannons or fire water bags can be connected as needed to adapt to different situations. Users can adjust the water pressure and water volume using the built-in wrench of the product,; The opening method is to open the lifting shaft. During the opening process, the internal connecting rod moves vertically downwards, and the pressure of the internal fire water causes the internal pressure reducing device to open in sections. First, a part of the water flows upward through the pressure reducing device, and then another section is opened after a certain period of time to achieve the pressure regulating effect; When using this product, the internal device seals the automatic drainage device during movement. After use, the top rod of the originally sealed drainage device leaves, and the water left in the upper half after use is automatically discharged

AfterSalesService :

• Fire hydrant