A Fixed Welded Ball Valve is a valve featuring a full-welded structure, with its core components connected by welding, without threads or flange connections. It boasts reliable sealing and high resistance to high pressure and high temperatures. The following is a detailed introduction:

Structural Features

‌All-welded structure: Valve body, ball, valve seat, and other critical components are connected by welding, ensuring no external leakage risk.‌

‌Fixed Design: The sphere is fixed on both vertical axes, rotated by the valve rod, suitable for high-pressure and large-diameter applications.‌

‌Sealed Structure: The valve seat is equipped with a PTFE sealing ring and spring assembly, adapting to pressure and temperature variations to ensure sealing integrity.‌

Performance Advantages

High Pressure and High Temperature Resistance: Capable of withstanding high temperatures (550°C) and high pressures (6.4 MPa), suitable for harsh environments in oil and gas, chemical industries, etc.

Flexible operation: Requires only a 90° rotation to open/close, supporting manual, pneumatic, and various other drive methods.

High Corrosion Resistance: Valve bodies are available in stainless steel or alloy steel, suitable for corrosive media.

Application Scenario

Primarily used in high-pressure, large-diameter scenarios for oil and gas long-distance pipelines, coal gasification, and chemical fluid control, ensuring the reliability of fluid cutoff and flow regulation.