CE CE High Pressure Pn16 Electric Carbon/Stainless /Duplex Steel Flexible Wedge Flanged Gate Valve

Product Description

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 rely on hand-operated mechanisms like handwheels or levers, electric gate valves are automated and can be controlled remotely or automatically through electrical signals.

Electric gate valves offer several advantages over manual valves, including remote or automatic operation, precise control, and integration into automated systems. They are commonly used in industries such as water treatment, wastewater management, oil and gas, power generation, and chemical processing, where automated valve control is required for efficient operation and system optimization.

One of the primary advantages of stainless steel gate valves lies in their corrosion resistance properties. Stainless steel, renowned for its resistance to rust and corrosion, ensures longevity and durability even in harsh operating conditions, making these valves suitable for a diverse range of industries and applications.

Moreover, stainless steel gate valves are available in various sizes, pressure ratings, and configurations, allowing for seamless integration into different piping systems. Whether in petrochemical plants, water treatment facilities, or industrial processes, these valves provide versatile and dependable fluid control solutions.


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.

The parameters of an electric gate valve may vary depending on factors such as its intended application, size, pressure rating, and manufacturer specifications. However, here are some common parameters that are often specified for electric gate valves:

Valve Size: Electric gate valves are available in a range of sizes, typically ranging from small diameters of around 1/2 inch (DN15) to large diameters of several feet or more, depending on the application requirements.

Pressure Rating: Electric gate valves are designed to withstand specific pressure ratings, which indicate the maximum pressure at which the valve can safely operate without failure. Pressure ratings can vary widely depending on factors such as the valve size, material, and design, but common pressure ratings include ANSI Class ratings (e.g., Class 150, 300, 600, etc.) or PN ratings (e.g., PN10, PN16, PN25, etc.).

 

Material of Stainless Steel Gate Valve
 

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