The electric three-piece ball valve is a valve that rotates its ball element 90° perpendicular to the flow axis. It consists of an angular stroke electronic electric actuator and an O-port valve structure, belonging to the category of rotary-type high-performance regulating or switching valves. It accepts input/output current or voltage signals from industrial automation control systems (DCS, PLC) to achieve proportional regulation or two-position switching of fluid media in process pipelines, thereby enabling automated control of parameters such as flow rate, pressure, temperature, and level of the fluid media.
Electric three-piece ball valves (threaded connection ball valves) and butt-welded connection ball valves are suitable for pipelines with pressure ratings of PN1.0 to 4.0 MPa and operating temperatures ranging from -29°C to 180°C (with reinforced PTFE seals) or -29°C to 300°C (with meta-aramid seals), used to shut off or connect the media in pipelines. Different materials can be selected to make them suitable for various media, including water, steam, oils, nitric acid, acetic acid, etc.
Specification
Size range: 1/4″ to 6″ (DN08 to DN150)
Valve Material: Stainless steel 304/316/316L
Ball Material: Stainless steel
Sealing Material: PTFE
Stem Materials: CF8, CF8M
Temperature Range: -10°C to 180°C
Operating Pressure Range: 10bar to 64bar
Connection Options: Threaded, clamp, flange or welded
Working Principle:
Opening Process: After receiving an electrical signal, the electric actuator drives the valve stem to rotate, causing the ball to rotate 90° inside the valve body. The ball's passage aligns with the valve body channel, allowing smooth medium flow.
Closing Process: The electric actuator reverses its drive, causing the valve stem to rotate the ball 90°. The passage becomes perpendicular to the valve body channel, closing the valve and blocking medium flow.
Product Features:
Compact Structure: The valve body consists of three parts, facilitating installation and maintenance. It occupies minimal space, making it suitable for limited-space applications.
Low Fluid Resistance: The ball passage is smooth and flat, with a low fluid resistance coefficient, reducing energy loss and improving system efficiency.
Excellent Sealing Performance: The valve seat adopts an elastic sealing structure, ensuring reliable sealing and easy operation. It is suitable for applications requiring zero leakage rates.
Simple Operation: The electric actuator enables remote and automatic control, offering convenient and quick operation while saving labor and time.
Wide Range of Applications: Different materials (e.g., stainless steel, carbon steel) and sealing materials (e.g., PTFE, meta-aramid) can be selected, making it suitable for various media, including water, steam, oils, nitric acid, acetic acid, etc.