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Here are some of the well-known brands recognized in the electric two-way valve (electric two-way valve) industry, which are widely recognized and have a great reputation. While rankings may vary depending on time and market conditions, the following brands are generally considered to be among the top brands in the valve industry:
The following are the top ten domestic first-line valve brand manufacturers in 2022-2023, but for reference only: Suzhou Neway Valve Co., Ltd., Shanghai Guanlong Valve Machinery, Shanghai Qizhong Valve Manufacturing, Sanhua, Su Yan, Shentong, Su Valve, Nanfang, Jiang.
First, the word Yao. The above manufacturers are only estimates and references, and the specific situation may vary or fluctuate at any time due to changes in a series of factors such as changes in the market, the size of the competition pattern, and the stability of product quality. As an indispensable key device in industrial production and civil facilities, the quality and reputation of the valve brand directly affect the satisfaction and trust of users.
These brands are known in the valve industry for their innovative technology, high-quality products and reliability. It is important to note that the market and industry are evolving rapidly, and different rankings may vary depending on time and region. For the most up-to-date ranking information, it is recommended to refer to industry reports, professional organizations or market research data for more detailed and accurate information.
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It's not the same. It is the adjustment type and the switching type.
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Step 1: Move the actuator correctly, leave the center position, and start initialization. Cover grip.
Straight stroke option:
Angular stroke selection:
Step 2: Short press the function key to switch to the second parameter, which is displayed as follows:
Step 3: Use the function key to switch to parameter 3, which is displayed as follows:
Step 5: Press down on the " " key for more than 5 seconds, and the initialization starts:
Step 6: Initialization is complete.
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Normally closed: when the coil is energized, the pilot valve core is engaged, the pilot hole is opened, the upper cavity of the valve is relieved, the piston is pushed by the medium pressure of the lower cavity, and the solenoid valve is opened; When the coil is powered off, the pilot valve core is reset by the spring, the pilot hole is closed, and the valve upper cavity is pressurized by the piston throttle and the thrust of the return spring, and the solenoid valve is closed.
Normally open: When the line is powered on, the pilot hole is closed, and the valve upper cavity is pressurized by the piston throttle hole and the thrust of the return spring, and the solenoid valve is closed. When the coil is powered off, the pilot valve core is reset by the spring, the pilot hole is opened, the upper cavity of the valve is relieved, the piston is pushed by the medium pressure of the lower cavity, and the solenoid valve is opened.
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Introduction: In modern life, air conditioning is everywhere, and the electric two-way valve to be introduced to you is used to specialize in the air conditioning fan coil unit, and the electric two-way valve includes two parts, namely the driver and the valve body. So, how much is an electric two-way valve**?
If you're interested, read on.
**The difference between an electric two-way valve and an electromagnetic two-way valve
Uses of electric two-way valve and solenoid two-way valve:
Solenoid two-way valve: used for on-off control of liquid and gas pipelines, it is two-position DO control. It is generally used for the control of small pipes.
Electric two-way valve: It is used for the analog adjustment of the flow rate of the pipeline medium in the liquid, gas and wind system, and is controlled by AI. In the control of large valves and wind systems, electric valves can also be used for two-position switch control.
Solenoid two-way valve: it can only be used as a switch, it is DO control, it can only be used for small pipeline control, it is common in DN50 and below pipelines, and there are very few above.
Electric two-way valve: can have AI feedback signal, can be controlled by DO or AO, compared to large pipes and dampers, etc.
1.Switch form:
The solenoid two-way valve is driven by a coil and can only be opened or closed, and the action time is short when opening and closing.
The drive of the electric two-way valve is generally driven by a motor, and it takes a certain amount of time to simulate the opening or closing action, which can be adjusted.
2.Nature of work:
Solenoid two-way valves generally have a very small flow coefficient and a very small working pressure difference. For example, the flow coefficient of a 25-caliber solenoid two-way valve is much smaller than that of a 15-caliber electric ball valve. The solenoid two-way valve is driven by the solenoid coil, which is more easily damaged by the voltage shock.
It is equivalent to the role of the switch, which is the two functions of opening and closing.
The electric two-way valve is generally driven by a motor, which is more resistant to voltage shock. The solenoid two-way valve is quick to open and fast to close, and is generally used in places with small flow and small pressure, and requires a large switching frequency. The opening of the electric two-way valve can be controlled, and the state is open, closed, half-open and half-closed, which can control the flow of the medium in the pipeline and the solenoid valve cannot meet this requirement.
The electromagnetic two-way valve can be reset when the power is off, and the electric two-way valve needs to add a reset device to such a function.
3.Applicable process:
The solenoid two-way valve is suitable for some special process requirements, such as leakage, special fluid medium, etc., which is more expensive.
Electric two-way valves are generally used for adjustment, but also have a switching amount, such as the end of a fan coil unit.
You can get it for free
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There is no difference that it is all straight-stroke.
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The electric two-way valve is a supporting product for the first air conditioning fan coil unit, which is composed of two parts: the driver and the valve body, the driver is driven by a synchronous motor, and has the functions of spring return and manual valve opening lever control. The valve body part adopts a piston structure. The electric valve can be used in conjunction with the thermostat, and the thermostat controls the electric valve motor to open or close the valve, realize the on/off of cold or hot water in the pipeline, and then supply air through the fan coil unit to realize automatic temperature adjustment.
The solenoid valve is generally equipped with a coil for the solenoid, and the volume is not too large.
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