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The feed water rotary control valve is suitable for medium and low pressure boiler feed pipes and high-pressure heater traps, and the window area formed by rotating the cylindrical disc to change the window area formed by the valve seat to achieve the purpose of regulating the flow rate. The swing opening and closing angle of the control valve is 60 degrees, which is indicated by the opening indicator plate above the control valve. It can be equipped with electric actuators to implement remote automatic operation.
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Here are some of the well-known brands recognized in the valve industry, which are widely recognized and have a high 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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1. It is mainly composed of valve body, valve seat, valve disc, valve stem, valve cover, indicator plate, etc.
Second, the flow adjustment of the valve is realized by changing the window area on the disc of the cylindrical disc and the valve seat.
Third, the opening and closing range of the valve. Indicated by the opening indicator plate above the valve, the indicated switching range is consistent with the opening and closing range of the valve.
Fourth, the rotary control valve is operated by a remote controller, and the rotation angle is 60.
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The rotary valve, also known as the discharge valve, is a kind of mechanical device that changes the valve from the open position to the closed position by rotating the parts such as rotating the baffle.
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Rotary valves, also known as valves, are usually divided into two categories: linear and rotary. Linear valves allow or cut off the flow by means of a linear moving component such as a ram. The valves of the linear type noisy grinding accompany include globe valves, gate valves, diaphragm rising valves, etc.
The rotary valve allows or shuts off the flow by means of a rotating part. A rotary valve that can rotate 90 degrees is called a 1 4 rotary valve. Sometimes the classification of 1 4 rotary valves can be extended to rotary valves with a rotation angle of less than 270 degrees.
As can be seen from the definition, a rotary valve is a rotary valve that changes the valve from open to closed by rotating a part such as a rotating baffle that rotates 90 degrees.
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1. The valve should be stored in a dry room, and both ends of the passage must be blocked. It is not allowed to be stored in stacks.
2. The control valve for long-term storage should be checked regularly to remove dirt, and anti-rust oil should be coated on each moving part and processing surface to prevent rust.
3. This valve should be installed on the horizontal pipeline, and it must be installed vertically. The stem is up.
4. It must be installed according to the flow direction of the medium indicated by the arrow in the figure.
Minimum Flow Control Valve The minimum flow control valve is also known as the boiler feed pump recirculation valve. In power plants it is installed at the outlet of the feed pump and connected to the deaerator. The boiler feed pump sucks the water out of the deaerator and sends it to the boiler. >>>More
1.The valve body is designed according to the principle of fluid mechanics and the equal-section low-flow resistance flow channel, and the rated flow coefficient is increased by 30 2The adjustable range is large, the inherent adjustable ratio is 50, and the flow characteristics are straight and equal percentages. >>>More
The regulating valve consists of an actuator and a valve; The actuator is generally electric or pneumatic. >>>More
Here are some of the well-known brands recognized in the valve industry, which are widely recognized and have a high 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: >>>More
The following is the body structure of the three-way control valve**, you can look at it, you can see from the figure that the three-way control valve has two valve seats, to give a column, the valve is now three-way confluence regulation, the left and the bottom are the inlet pipe, the left side of the cold water into the hot water, you need to adjust the temperature of the mixed water, this is the most typical case, the valve factory state is set to 4mA when the valve is left and right, the lower inlet is closed, so now adjust the mixing temperature to input 4-20mA signal, When 12mA, the left and the bottom are opened half, and the left side is fully closed when the 20mA signal is entered, and the bottom is fully open, so that the left and bottom sides can be adjusted to open the water, so as to control the temperature of the mixed water. (FYI).