A fully welded ball valve is a ball valve with a full welding structure, where all components are connected by welding without threads or flange connections. It features reliable sealing and is capable of withstanding high temperatures and pressures.

Structural Features

‌Full-welded design: Key components such as the valve body, seat, and ball core are welded together, eliminating the risk of external leakage.‌

‌Sealed Structure: Utilizes PTFE sealing rings and spring design, accommodating pressure and temperature variations without leakage under nominal pressure and temperature conditions.‌

‌Material Selection: Valve bodies are available in materials such as WCB, stainless steel (e.g., 304, 316), suitable for various working conditions.‌

Technical Specifications

Nominal Pipe Size: DN10-DN300 (common sizes), DN1500.

‌Operating Temperature: -38°C to 380°C (common range), some models support higher temperatures up to 550°C.‌

‌Operating Pressure: 1.6 MPa - 6.4 MPa.‌

Drive Method

Supports manual, pneumatic, and electric drive modes, catering to automation control requirements.

Application Scenarios

Broadly used in the oil, chemical, power, environmental protection, and water conservancy sectors, particularly suitable for high-temperature, high-pressure, and corrosive medium environments.