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Introduction of electric actuator ss ball valve:
Valve Size Range: Available in various sizes, typically ranging from small bore sizes to larger industrial sizes, to accommodate different flow rates and piping system requirements.
Pressure Rating: The valve is rated for a specific maximum pressure, typically ranging from ANSI Class 150 to Class 300 or higher, depending on the valve size and design.
Temperature Rating: Designed to operate within a specified temperature range, often ranging from -20°C to 200°C or higher, depending on the materials used and the specific design.
Materials of Construction:
Body Material: The body of the valve is made from stainless steel (e.g., ASTM A351 CF8M) for corrosion resistance and durability.
Ball Material: The ball is typically made from stainless steel to match the body material, ensuring compatibility and corrosion resistance.
Seals and Seats: Sealing materials are chosen for compatibility with the media being handled and the operating temperature range.
Common options include PTFE for its chemical resistance and low friction.
Electric stainless steel ball valves offer several advantages compared to other types of valves, particularly in certain applications and industries. Here are some of the key advantages:
Precise Control: Electric actuators provide precise control over the valve's position and flow rate. This allows for accurate modulation of flow, making electric stainless steel ball valves suitable for applications requiring fine control of fluid flow.
Automation: Electric stainless steel ball valves can be easily integrated into control systems for automation. They can be programmed to respond to specific process conditions or controlled remotely, reducing the need for manual intervention and improving operational efficiency.
Remote Operation: With remote control capabilities, electric stainless steel ball valves can be operated from a central control room or even remotely via a computer or mobile device. This enhances convenience, especially in large or remote facilities where manual operation may be challenging.
Reduced Maintenance: Electric actuators generally require less maintenance compared to pneumatic or hydraulic actuators. They do not rely on compressed air or hydraulic fluids, reducing the risk of leaks and the need for regular maintenance.
Versatility: Stainless steel ball valves are compatible with a wide range of fluids, including corrosive and abrasive media. The stainless steel construction provides excellent corrosion resistance, making these valves suitable for use in harsh environments.
Electric stainless steel ball valves operate using an electric actuator to control the opening and closing of the valve. Here's how they typically work:
Electric Actuator: The electric actuator is mounted on top of the valve and is connected to the valve stem. It contains an electric motor, gears, and a control mechanism.
Electric Motor: The electric motor is the primary component responsible for generating the torque needed to open and close the valve. When the actuator receives a signal to operate, the motor rotates in either a clockwise or counterclockwise direction, depending on whether the valve needs to open or close.
Control Mechanism: The control mechanism within the actuator manages the operation of the electric motor. It receives signals from a control system, such as a programmable logic controller (PLC) or a distributed control system (DCS), indicating the desired valve position (open, closed, or partially open).
Power Supply: The electric actuator requires electrical power to operate. It is typically connected to an external power source, such as a power outlet or a control panel, providing the necessary voltage and current for operation.
Position Feedback: Some electric actuators are equipped with position feedback devices, such as limit switches or position transmitters. These devices provide feedback to the control system, indicating the actual position of the valve (fully open, fully closed, or somewhere in between).
Valve Operation: When the control system sends a signal to the electric actuator to open or close the valve, the actuator's motor rotates accordingly. This rotation is transferred to the valve stem, which in turn rotates the ball within the valve body.
Ball Rotation: The ball inside the valve body rotates to either align with the flow path, allowing fluid to pass through (valve open), or perpendicular to the flow path, blocking the flow of fluid (valve closed).
| Product name |
Stainless Steel Ball Valve |
| Nominal diameter |
1/2"-4"(DN15-DN100) |
| Material |
CF8(SS304),CF8M(SS316) |
| Working pressure |
PN40 |
| End connection |
RF/FF Flange End |
| Sealing |
PTFE. RTPFE. |
| Applicable Media |
Water, Oil, Gas and Corrosive Liquid etc |
| Temperature |
-40°C-210°C |
| Port |
Full Port |
| MOQ |
1PCS/SIZE |
Ball Valve Components
Although there are numerous parts making up the valve the basic components are made up of the following:
The Valve Body
Also referred to as the valve housing or shell, it contains all the inner components of the valve. Usually composed of a rigid metal, in this case Stainless Steel, it protects all the internal components and keeps them in the correct position and aligned for proper functioning. It also facilitated access for the external handle to connect with and rotate the internal ball, via the stem. The valve body comes in three assembly options: one-piece, two piece and three-piece designs.
The Rotary Ball
This is the part that gave the valve its name. It is a ball that has "flow path" known as a bore, through the center that allows the medium to flow through it. The ball is rotated by the stem, which either opens the flow when the bore is in-line with the pipe or closes the flow when the bore is perpendicular to the flow. There are two types of bore design: Full port and Reduced port.
The Stem
Also referred to as the shaft, it connects the external handle that rotates the inner ball. The Stem has washers and packing rings to ensure a tight seal and to prevent any leaks. The stem is rotated as the handle is turned, which in turn rotates the ball, opening and closing the flow.
The Seat
The Seat sits between the ball and the valve body and ensures a water tight seal. There are two seats that sit on either side of the ball and are usually composed of (PTFE).
The Handle
The handle is also often called the lever. it a standard ball valve it is the manual way used to turn the ball valve to the open or closed position.
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