Ball valve is widely used in petroleum refining, long-distance pipeline, chemical industry, papermaking, pharmaceutical industry, water conservancy, electric power, municipal administration, steel and other industries, and plays an important role in the national economy.
As developing of ball valve production, almost factories use fire safe design for ball valve. The purpose of the fire safe ball valve is to keep a strategic distance from the combustible fluid (liquid or gas or gas surrounded from the liquid phase) or to make it pass at any speed within a given time, and in any case within that time period, without separating the aggregate, close the valve when the pipeline is too hot, which is caused by fire or similar events. When you should use a fire safety valve, make a reasonable hazard check. When you are obliged to use an unusual method, factory, pipe, container or device that is subject to any principle, regulation or law. Check whether fire safety test sequencing is required or only fire safety configuration is required without actual sequencing test.
When the valve rod of ball valve is rotated by the control mechanism to control the opening and closing of the ball, static electricity will be generated due to friction between the ball and the valve seat. When the transportation medium is inflammable and explosive, static electricity generated by the opening and closing of the ball will bring security risks. It can be designed with anti-static structure. Through this setting, the static electricity generated by the ball of the ball valve and the valve seat in the process of opening and closing can be transmitted to the valve rod through the conductive steel ball and the conductive spring, and then the valve rod can lead the static electricity to the external environment through the handle or the part contacting the valve rod on the valve body, so as to prevent the static electricity from accumulating in the valve body, thus eliminating the potential safety hazard of static electricity accumulation and improving the production Safety of products.
ZFV ( Zhejiang zhengfeng valve co., ltd ) have ball valve with fire safe design and anti-static device design, welcome customers over the world .
Zhejiang Zhengfeng Valve Co., Ltd