The electric high performance butterfly valve suddenly broke, where is it sold?

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.

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What kind of butterfly valve? Please tell us about the specific parameters.

Electric butterfly valve fault and troubleshooting method.

1. Before the installation of the electric butterfly valve, confirm whether the performance of the senmi product and the direction of the medium flow arrow 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 close the butterfly plate before cleaning, so as not to damage the sealing ring.

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

3. The position of the electric butterfly valve installed in the pipeline, the best position is vertical installation, but it cannot be reversed.

4. The flow rate needs to be adjusted during the use of the electric butterfly valve, and there is a pneumatic actuator to control it.

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

6. Check the compression of each connecting part, which not only ensures the tightness of the packing, but also ensures the flexible rotation of the valve stem.

7. The metal sealed electric butterfly valve 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 overposition.

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

Troubleshooting of electric butterfly valve seal surface leakage.

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

2. The closing position of the butterfly plate and the sealing surface is not correct.

3. The flange bolts on the outlet side are unevenly stressed.

Troubleshooting of leakage at both ends of the electric butterfly valve.

1. The sealing gaskets on both sides fail.

2. The tightness of the pipe flange is uneven or not compressed.

3. The upper and lower sealing gaskets of the sealing ring fail.

The faults of the electric butterfly valve are: the valve can not be reversed or the reversing action is slow, gas leakage, and the electromagnetic pilot valve is faulty.

1) The electric butterfly valve cannot be reversed or the reversing action is slow, which is generally caused by poor lubrication, the spring is stuck or damaged, and the oil or impurities are stuck in the sliding part. In this regard, you should first check whether the lubricator is working normally; Whether the viscosity of the lubricating oil is appropriate. If necessary, the lubricating oil should be replaced, the sliding part of the electric butterfly valve should be cleaned, or the spring and electric butterfly valve should be replaced.

2) After long-term use, the electric butterfly valve is prone to wear of the valve core sealing ring and damage to the valve stem and valve seat, resulting in gas leakage in the valve, slow action of the valve or abnormal reversing and other failures. At this point, the seal, stem and seat should be replaced, or the electric butterfly valve should be replaced.

3) If the inlet and exhaust holes of the solenoid pilot valve are blocked by sludge and other debris, the closure is not tight, the movable core is stuck, and the circuit is faulty, etc., it can lead to the abnormal reversal of the electric butterfly valve.

For the first three cases, the sludge and impurities on the pilot valve and the movable core should be cleaned. Circuit faults are generally divided into two categories: control circuit faults and electromagnetic coil faults. Before checking the circuit fault, the manual knob of the electric butterfly valve should be turned a few times to see whether the electric butterfly valve can be reversed normally under the rated air pressure, if it can be reversed normally, it is a fault in the circuit.

When checking, the voltage of the electromagnetic coil can be measured by the instrument to see if the rated voltage is reached, and if the voltage is too low, the power supply in the control circuit and the associated travel switch circuit should be further checked.

If the electric butterfly valve cannot be reversed normally at the rated voltage, the joint (plug) of the solenoid coil should be checked for looseness or improper contact. The method is to unplug the plug and measure the resistance of the coil, if the resistance is too large or too small, it means that the solenoid coil is damaged and should be replaced.

The most common problem with valves is generally a variety of leaks caused by poor sealing, and the same is true for electric butterfly valves.

The common problems in the use of electric butterfly valves are: improper parameter selection of the electric device, resulting in too large or too small output torque, causing the damage of the weak structure or the burning of the motor of the electric device; The technical communication between the electric power design institute, the complete set of units and the manufacturer is insufficient, which makes the design of the design institute's electronic control system of the electric butterfly valve inconsistent with the actual electronic control system of the product, resulting in the product being unusable; The feedback signal is not consistent with the actual position of the valve, the self-feeding performance of the valve is poor, and the control accuracy is low. There are many reasons for the above problems of electric butterfly valves, which involve the selection of products, the combination of valves and electric devices, and the manufacturing of products.

In order to avoid the occurrence of the above problems, users must pay attention to the selection, and at the same time, the technical standards after the complete set of electric valves must be formulated.

What exactly is the problem, the actuator problem or the butterfly valve body.

Depending on your description, there could be a few reasons for this:

1. The working environment temperature of the valve body is too high, which causes the valve plate to expand and freeze;

2. The conveying medium is too viscous, and the valve body is stuck due to the accumulation at the valve plate for a long time;

3. The transmission part of the electric head is stuck due to the damage of the transmission part due to the action of high torque for a long time.

The first thing to do is to figure out what is the job task of your butterfly valve? What kind of medium is being conveyed? If the piping system is irrelevant, you can disassemble the electric valve to check to see what part is clamped, and then deal with it according to the situation.

If the conveyed medium is a dangerous goods and it is not allowed to remove the electric butterfly valve, then the servo motor can be removed and the servo motor and transmission mechanism can be checked separately. In addition, it is also necessary to consider whether the conveying medium will be cured, and if the medium is solidified, this kind of valve body and valve plate bonding will also occur. Examination of these areas should reveal the problem.

Hope you are satisfied.

1.There is a foreign object stuck in the valve body in the fluid medium.

2.The conveying medium is too viscous and accumulates at the valve plate for a long time, resulting in the valve body getting stuck.

Or ask the manufacturer to open it to know the root cause, such as the above problem can be cleaned.