What is the packing of turbine turn flanged butterfly valve DN150

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 influential first-line brands of water system valves and industrial valves can be used as a reference, but for reference only: Suzhou Neway Valve, Shanghai Guanlong Valve, Shanghai Qizhong Valve, 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.

It is generally made of graphite.

The structural length of the flange is 152mm, and the control element of Beijing Shaner pipeline is ****.

The structural length of the flange is 152mm.

Turbine flange butterfly valve (also known as turbine flange flap valve) generally adopts three eccentric multi-level metal hard seal structure, which is widely used in metallurgy, electric power, petrochemical, water supply and drainage and municipal construction industrial pipelines with a medium temperature of 425 to regulate the flow and carry off fluid.

The valve adopts a triple eccentric structure, and the valve seat and disc plate sealing surface are made of different hardness and stainless steel, which has good corrosion resistance and long service life. The common connection methods of Dissa turbine flange butterfly valve are divided into flanged turbine stainless steel butterfly valve and clamp stainless steel butterfly valve.

Butterfly valve refers to a kind of valve in which the closing part (disc or butterfly plate) is a disc that rotates around the valve shaft to achieve opening and closing, and mainly plays the role of cutting off and throttling on the pipeline. The butterfly valve opening and closing part is a disc-shaped butterfly plate, which rotates around its own axis in the valve body, so as to achieve the purpose of opening and closing or adjusting. The butterfly valve is usually less than 90° from full open to full closed, and the butterfly valve and the butterfly rod itself have no self-locking ability, so for the positioning of the butterfly plate, a worm gear reducer should be installed on the valve stem.

The use of worm gear reducer can not only make the butterfly plate have the ability to lock itself, make the butterfly plate stop in any position, but also improve the operation performance of the valve. The characteristics of the industrial butterfly valve can withstand high temperatures, the applicable pressure range is also high, the valve nominal diameter is large, the valve body is made of carbon steel, and the sealing ring of the valve plate is made of metal ring instead of rubber ring. The large high-temperature butterfly valve is made of steel plate welding, which is mainly used for flue air ducts and gas pipelines of high-temperature medium.

Common faults and troubleshooting methods:

1. Before installation, confirm whether the product performance and medium flow direction arrows of our factory are consistent with the moving conditions, and clean the inner cavity of the valve, and do not allow impurities and foreign substances attached to the sealing ring and butterfly plate, and never allow the butterfly plate to be closed before cleaning, so as not to damage the sealing ring.

2. It is recommended to use the special flange for disc valve for disc plate installation, that is, HGJ54-91 socket welded steel flange.

3. The best position to install in the pipeline is vertical, but it cannot be reversed.

4. The flow rate needs to be adjusted in use, and there is a worm gear box for control.

5. For butterfly valves that are opened and closed more times, open the worm gear box cover in about two months, check whether the butter is normal, and keep an appropriate amount of butter.

6. Check the pressing requirements of each connecting part, which not only ensures the bee property of the packing, but also ensures the flexible rotation of the valve stem.

7. The metal sealed butterfly valve product is not suitable for installation at the end of the pipeline, if it must be installed at the end of the pipeline, it is necessary to install the outlet flange to prevent the backlog of the sealing ring and over-position.

8. The valve stem installation and use reaction regularly check the valve use effect, and eliminate the fault in time.

9. Please refer to the following for details of the timely troubleshooting methods that may occur

1. Possible failures: leakage of the sealing surface, causes:

1.There are sundries between the butterfly plate and the sealing surface.

2.The butterfly plate and the sealing surface are not in the right place, 3The outlet side is equipped with uneven force on the flange bolts, 4Direction of pressure test.

Corresponding exclusion method:

1.Eliminate impurities, clean the valve cavity, 2Adjust the adjusting screw of the worm gear or electric actuator to reach the correct closing position of the valve, 3Check the mounting flange plane and bolt pressing country, should be evenly compressed, 4Apply pressure in the direction of the tip seal.

2. Possible failures: leakage at both ends of the valve, causes:

1.Failure of sealing gaskets on both sides, 2Pipe flange tightness is uneven or not compressed, 3The upper and lower gaskets of the sealing ring fail.

Corresponding exclusion method:

1.Replace the gasket seal.

2.Compress the flange bolt (evenly stressed).

3.Remove the pressure ring of the valve, replace the sealing ring, and fail the gasket.

If the main problem of the turbine butterfly valve is in the leakage of the sealing surface of the butterfly valve and the turbine box, because it is the underground pipe network turbine box rod should not be corroded, and it can drive the butterfly plate to rotate.

1. The different transmission modes (handle or turbine) are mainly determined according to the size of the valve and the opening and closing torque.

2. The butterfly plate of the worm gear butterfly valve is installed in the diameter direction of the pipeline. In the cylindrical channel of the butterfly valve body, the disc-shaped butterfly plate rotates around the axis, and the rotation angle is between 0° and 90°, and when the rotation reaches 90°, the valve is fully open.

3. The clamp-type butterfly valve is to connect the valve between the two pipeline flanges with stud bolts, and the flanged butterfly valve is to connect the flanges at both ends of the valve to the pipeline flanges with bolts.

It's just that the driving mode is different, and the handle butterfly valve is generally a small caliber, because the torque of the small caliber is generally smaller, and the turbine butterfly valve can be opened and closed directly by hand with a gearbox to drive the valve stem to rotate.

The selection principle is that when the stem torque is greater than the gearbox drive, and the gearbox is controlled by a handwheel, the handwheel force is not greater than 300 Nm

Crown valve pushing.

DN2400 is the caliber.

D341XD stands for Butterfly Valve.

3 stands for turbine drive.

4 represents flange connection.

X stands for Soft Seal.

That is, this product is a rubber soft seal butterfly valve.