Leveraged Safety Valve

The lever type safety valve utilizes the lever principle, characterized by a horizontally placed lever hinged in sequence on the valve disc, bracket, and heavy hammer. The valve disc is closer to the bracket, and the heavy hammer is farther from the bracket. Therefore, when the force of the lever and heavy hammer is transmitted to the valve disc, the valve seat will be closed. The pressure medium is located below the valve disc. When the pressure of the medium exceeds the specified value, the valve disc is lifted and released to the outside. By changing the weight and position of the heavy hammer, that is, by changing the clamping force on the valve disc, the working pressure of the safety valve can be adjusted. There is a device to prevent the automatic movement of the hammer and a guide frame to limit the lever from exceeding. A lever type safety valve is a pressure safety device designed using the lever principle, mainly used in boilers, containers, and pipeline systems to prevent overpressure and protect system safety. The lever type safety valve produced by Shanghai Meiyanyi Pump Valve mainly consists of valve body, valve cover, packing box, sealing gasket and other parts. The valve body is equipped with adjusting screws to adjust the opening height and a locator to determine the position of the valve core. The valve disc is in the shape of a double seat sleeve, with a guide slide and locking thread, which is easy to operate manually. The lower end of the valve stem is equipped with a guide groove inserted with a positioning pin to prevent tilting due to its own weight.