The maximum allowable working pressure in the valve technical parameters refers to the working pressure at normal temperature. The mechanical strength of the valve material decreases as the temperature increases, so the valve allows the working pressure to decrease as the temperature of the medium increases. In addition, the maximum working temperature of the medium is also limited by the temperature resistance of the filler, and the valve of the non-metallic elastic seal is also limited by the temperature resistance of the seal material.
In order to prolong the service life of the valve, the gate valve and ball valve should be fully opened and fully closed. It should not be partially opened for throttling. Because when the part is opened, the rolling medium will erode the sealing surface of the gate and the ball. When the medium has impurities, this erosion effect will be greater.
When installing the valve, try not to disassemble and install it. If you need to disassemble and install, please make sure to mark it. Especially for the gate valve, the direction of the gate after reinstallation should be the same as the direction before disassembly.
Valves for plumbing are not allowed to be used in pipelines that transport flammable gases and corrosive media. If you need to use them in the above pipelines, it is recommended to purchase special valves, such as gas ball valves and stainless steel valves.
