A fully welded ball valve is a type of ball valve featuring a full welding structure, with all components connected by welding. It has no threaded or flanged connections, offering reliable sealing and high-temperature, high-pressure resistance.

Structural Features

‌Full-welded design: Key components such as the valve body, seat, and ball core are焊接connected, 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 operating conditions.‌

Technical Specifications

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

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

Operating Pressure: 1.6 MPa - 6.4 MPa.

Drive Method

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

Application Scenario

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