Electric Ball Valve Material WC6 DN250 PN25 Remote Automation
Control
Product Overview
Electric ball valves are a common type of valve that control the
flow of media through the rotation of a ball. This model is
equipped with an electric actuator, enabling remote or automatic
control. Compared to manual ball valves, it is more convenient and
efficient to operate. It is suitable for piping systems that
require frequent adjustments or remote control. It is widely used
in many industries, including petroleum, chemical, and power.
Ball valve features
| Application | Natural gas, oil industry, etc. |
| Place of origin | Zhejiang, China |
| Power | Electric |
| Customized support | OEM, ODM, OBM |
| Temperature of media | High temperature |
| Brand name | SND |
| Media | Water, Oil, Gas |
| Connection | Flange |
| Body material | WC6 |
| Pressure | PN25 |
| Surface | According to customer requirements |
| Size | DN250 |
An electric ball valve primarily consists of an electric actuator
and a ball valve.
Its operating principle is as follows:
Electric Actuator Operation
The electric actuator is a key component for automated control of
an electric ball valve. It typically contains a motor, a reduction
gear, a position feedback device, and control circuitry.
Receiving a Control Signal: When a control system (such as a
distributed control system (DCS) or programmable logic controller
(PLC)) issues a valve opening or closing command signal (which can
be a current signal such as 4-20mA, a voltage signal such as 0-10V,
or a digital signal), the control circuit within the electric
actuator receives the signal.
Motor Operation: The control circuit processes and converts the
signal, driving the motor to begin operation. The motor's speed is
typically high, making it unsuitable for direct valve operation.
Reduction Gear: A reduction gear (such as a gearbox) converts the
motor's high speed and low torque into a low speed, high torque
output to meet the torque requirements for valve opening and
closing.
How a Ball Valve Works
The core component of a ball valve is the ball, which has a
circular through-hole. During the opening process, the electric
actuator's output shaft rotates the ball valve stem, which in turn
rotates the ball. When the ball rotates until its through hole
aligns with the pipeline axis, the medium (such as gas or liquid)
can flow smoothly through the valve. The valve is now in the open
position, allowing normal flow in the pipeline.
When the valve needs to be closed, the electric actuator reverses
the valve stem, rotating the ball 90 degrees. The solid portion of
the ball blocks the pipeline passage, preventing the flow of the
medium. The valve is closed, blocking the flow of the medium in the
pipeline.
Position Feedback Mechanism
Electric ball valves are typically equipped with a position
feedback device, such as a potentiometer or Hall effect sensor.
During the valve opening and closing process, the position feedback
device monitors the ball's rotational position in real time and
provides feedback to the control system on the actual valve
opening. This allows the control system to monitor the valve's
status at all times, enabling precise control and monitoring. It
can also promptly detect valve malfunctions (such as the valve
failing to reach the specified opening as instructed). Through the
coordinated work of electric actuators and ball valves, electric
ball valves can realize automated and remote medium on-off control,
and are widely used in industrial fields such as petroleum,
chemical industry, electric power, water supply and drainage, as
well as some civil occasions with high requirements for automation.
FAQ
How to get a quote?
A1: Quotation requires customers to provide information such as
material, pressure, caliber, etc.
Can you produce parts according to samples?
A2: Yes, we have reverse engineering capabilities.
Do you provide samples?
A3: Yes, we will provide samples according to your requirements
after the order is signed.
What certifications does your company have?
A4: We have ISO9001, API, SGS, CE and other certifications.
What are the sea ports?
A5: We usually ship from Shanghai, Tianjin, Qingdao, Ningbo and
other ports. But we will also choose other ports according to
customer requirements, and we also have rich experience in railway
transportation.
If you are interested, please contact me.
I will give you a great discount price,I am online 24 hours a day.
