| Temperature: | Low Temperature |
|---|---|
| Type: | Straight-through |
| Pressure: | High Temperature |
| Seal Surface: | Wedge Gate Valve |
| Thread Position of Valve Rod: | Inside Gate Valve |
| Usage: | Regulation, Safety, Emptying, Drain, Temperature Control, Flow Control |
| Samples: |
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| Customization: |
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An electric gate valve is a type of valve that uses an electric actuator to control the opening and closing of the valve. Unlike manual gate valves that require a person to turn a handwheel or lever to operate, electric gate valves can be opened and closed remotely or automatically using an electrical signal.
The electric actuator in an electric gate valve converts electrical energy into mechanical motion, which is used to move the valve's gate or disc to control the flow of fluid. This automation allows for precise control over fluid flow rates and can be integrated into larger control systems for automated operation.
Electric gate valves offer several advantages over traditional manually operated gate valves, including:
Automation: One of the most significant advantages of electric gate valves is their automation capability. They can be operated remotely or automatically through electrical signals, eliminating the need for manual intervention and allowing for precise control of fluid flow.
Precision Control: Electric gate valves provide precise control over flow rates, allowing operators to adjust flow parameters accurately. This level of control is beneficial in processes where precise regulation of fluid flow is critical for optimal performance.
An electric gate valve operates through the use of an electric actuator, which converts electrical energy into mechanical motion to open or close the valve. Here's a step-by-step explanation of how an electric gate valve works:
Electric Actuator Activation: The electric actuator receives an electrical signal from a control system, which could be manual switches, buttons, or an automated control system like a PLC (Programmable Logic Controller). This signal triggers the actuator to start moving.
Motor Operation: Inside the electric actuator, there is typically an electric motor. When activated, the motor begins to rotate, generating mechanical power.
Mechanical Transmission: The mechanical power generated by the motor is transmitted through gears or other mechanical components within the actuator. This transmission mechanism converts the rotational motion of the motor into linear motion.
Gate Movement: The linear motion generated by the transmission mechanism causes the gate or wedge of the valve to move. In a gate valve, the gate moves perpendicular to the flow of the fluid. When the actuator rotates or extends, it pushes or pulls the gate to open or close the valve accordingly.
Valve Operation: As the gate moves, it either blocks or allows the flow of fluid through the valve, depending on whether the valve is opening or closing. When the gate is fully raised, the valve is in the fully open position, allowing maximum flow. Conversely, when the gate is fully lowered, the valve is fully closed, stopping the flow of fluid completely.
Position Feedback: Many electric gate valves are equipped with position feedback mechanisms, such as limit switches or position sensors. These devices provide feedback to the control system, indicating the current position of the valve (open, closed, or partially open).
Control System Integration: The control system monitors the position feedback signals and sends commands to the electric actuator as needed to achieve the desired valve position. This integration allows for precise control of the valve's operation and can be used for remote or automated control.
| Number | Name | Material |
|---|---|---|
| 1 | Body | ASTM A351 CF8M |
| 2 | Disc | ASTM A351 CF8M |
| 3 | Stem | ASTM A276 316 |
| 4 | Bonnet | ASTM A351 CF8M |
| 5 | Body Gasket | PTFE |
| 6 | Snap Ring | ASTM A276 316 |
| 7 | Washer | ASTM A276 316 |
| 8 | Packing | PTFE |
| 9 | Packing Sleeve | ASTM A276 304 |
| 10 | Packing Gland | ASTM A351 CF8M |
| 11 | Hand Wheel | Aluminium Alloy |
| 12 | Nut | ASTM A194-B8M |
| 13 | Plain Washer | ASTM A276 304 |
| Size | DN | L | H | D |
|---|---|---|---|---|
| ½" | 15 | 55 | 95 | 62 |
| ¾" | 20 | 61 | 100 | 72 |
| 1" | 25 | 68 | 105 | 72 |
| 1 ¼" | 32 | 72 | 125 | 78 |
| 1 ½" | 40 | 79 | 145 | 95 |
| 2" | 50 | 87 | 165 | 95 |
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