A fixed full-welded ball valve is a valve with a full-welded structure, where its core components are connected by welding without threads or flanges. It features reliable sealing and is capable of withstanding high pressure and high temperatures. The following is a detailed introduction:

Structural Features

‌Full-welded structure: Valve body, ball, valve seat, and other critical components are connected by welding, eliminating the risk of external leakage.‌

‌Fixed Design: The sphere is fixed on both vertical axes, rotated via a 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, accommodating pressure and temperature variations to ensure sealing integrity.‌

Performance Advantages

Withstanding high pressure and high temperature: Capable of withstanding high temperatures (up to 550°C) and high pressures (up to 6.4 MPa), suitable for severe environments such as oil and gas, chemical industries.

‌Operation Flexible: Simply rotate 90° 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 applications such as oil and gas long-distance pipelines, coal gasification, and chemical fluid control, ensuring the reliability of fluid cutoff and flow regulation.