High-temperature ball valves are valves specifically designed for high-temperature environments, featuring excellent high-temperature resistance and sealing capabilities. Their operating temperature can reach approximately 600°C, and they are widely used in the oil, chemical, metallurgical, and hydropower industries.
Definition and Features
High-Temperature Resistance: High-temperature ball valves can operate stably in high-temperature environments, with operating temperatures reaching approximately 600°C._
Good Sealing Property: Offers various sealing types, including metal-to-metal sealing and metal sealing with stainless steel plate and graphite composite gasket, ensuring the valve's sealing performance.
Low fluid resistance: The sphere can open or close by rotating 90 degrees in the medium, resulting in reduced resistance during fluid flow.
Simple structure: fewer parts for easy installation, maintenance, and repair.
Operating Principle
High-temperature ball valves control the flow of fluids through the opening and closing of the valve. When the valve is open, the ball rotates 90 degrees along the valve's axial direction, allowing the medium to flow through the ball's passage; when the valve is closed, the ball rotates another 90 degrees, sealing the passage of the ball against the valve's holes, thereby blocking the flow of the medium.
Application Fields
Petroleum Industry: Used for controlling the flow of high-temperature, high-pressure gases and liquids.
Chemical Industry: Control the flow of various acidic and alkaline media.
Metallurgy Industry: Widely used in the smelting process of steel and non-ferrous metals.
Power Industry: Control the flow of media in boilers, steam turbines, and other equipment in thermal power plants; and control cooling water, steam, and other media in nuclear reactors in nuclear power plants.
Aerospace Industry: Meets the requirements for high-temperature, high-pressure, and high-speed fluid control, with significant applications in aero-engine test stands, rocket launch pads, and similar settings.
Industry: Control the flow and transfer of various media in reactors, separators, and other equipment; control the filling and sealing of liquid media in pharmaceutical packaging processes.
Water Treatment Industry: Control medium flow and pressure in water treatment equipment.
Maintenance and保养
To ensure the normal operation and prolong the service life of the high-temperature ball valve, regular maintenance is required. Specific measures include:
Regularly inspect the valve's sealing performance. In case of leakage, replace the seal or perform maintenance promptly.
Lubricate and maintain pneumatic actuators, including cleaning and replenishing with lubricating oil, to ensure their flexibility and stability.
Regularly clean the interior of the valve body to remove impurities and sediments, maintaining the cleanliness of the valve body.
