Steel lined PTFE discharge variable diameter ball valve is an industrial valve, particularly suitable for the treatment of corrosive media. The cast steel valve body is usually lined with PTFE such as PFA, FEP, PTFE, etc., because the material has excellent anti-corrosion performance, it can ensure that the valve body is not corroded by the medium. When the product needs to be discharged, the variable diameter port of the ball valve is determined by the material. The small-sized end is connected to the discharge tank, and the large-sized end is directly discharged. Therefore, the combination of one large and one small size can better discharge the material without blockage. The working principle of the fluorine lined ball type discharge valve is to rotate the ball to make the valve smooth or closed. The valve disc and the inner side of the valve body are all made of fluorine plastic lining technology. It has the advantages of lightweight switch, small volume, reliable sealing, simple structure, easy maintenance, and wide range of use.
Design Features
1. Low fluid resistance, fast opening and closing speed, and simple structure; 2. It has extremely high chemical stability and can be applied to any highly corrosive chemical medium;
3. Adopting a full bore, floating ball structure, the valve can be closed without leakage throughout the entire pressure range, which is more convenient for ball cleaning and pipeline maintenance of the pipeline system
4. The opening and closing element ball is integrated with the valve stem casting, eliminating the possibility of the valve stem impacting the pressure bearing part due to pressure changes, fundamentally ensuring safety during use
5. The structure is compact and reasonable, with a small internal space in the valve body, reducing medium retention. In addition, the special molding process ensures good density of the sealing surface, and the combination of herringbone ring PTFE packing enables the valve to achieve zero leakage.
Structure and composition: - Main body valve body: usually made of steel, with inlet and outlet to accommodate fluid channels- Sphere: The sphere is the core component of a valve, usually made of steel and coated with corrosion-resistant materials such as polytetrafluoroethylene (PTFE) to resist the erosion of corrosive media- Drive device: These ball valves can be controlled by manual, electric, or pneumatic drive devices to rotate the ball to change the connection of the fluid channel- Sealing device: usually includes a sealing ring and a sealing seat to ensure that the valve does not leak when closed- Control system: The control system can be a manual control panel, electronic control unit, or PLC, used to set and monitor the operation of valves- Corrosion resistance: The PTFE coating on the outside of the sphere enables it to resist corrosive media, making it highly suitable for chemical and corrosive media treatment- High precision control: These ball valves can provide high-precision fluid control, suitable for applications that require precise flow and direction- Remote operation: Equipped with electric or pneumatic drive devices, this ball valve can be remotely operated, reducing the risk for operators- Programmable: The control system allows users to program the opening and closing time and flow direction of valves to adapt to different process requirements- Long life and reliability: Due to its sturdy structure and the use of corrosion-resistant materials, the steel lined PTFE discharge variable diameter ball valve has long life and reliability. Application areas: This type of ball valve is commonly used in industrial applications that require the handling of corrosive media, such as: - Chemical industry: used for flow control of various chemicals and acidic and alkaline media- Mining and Metallurgy: Processing metal ores, metallurgical wastewater, etc- Wastewater treatment: Control the flow of fluids during the wastewater treatment process- Electric power industry: used for treating exhaust emissions and wastewater treatment- Food and beverage industry: suitable for handling fluids in the food and beverage manufacturing process to ensure product quality. In summary, the steel lined PTFE discharge variable diameter ball valve is a key industrial valve with characteristics such as corrosion resistance, high-precision control, and programmability. It is suitable for various industrial applications, especially in situations where corrosive media need to be handled.