Operating life and installation precautions for valves with grooved butterfly valves

The installation of the valve is related to the working life of the valve, and it is related to the development of the relevant departments. Therefore, the correct installation of the valve is the basic knowledge that every operator must master.
Whether it is an electric valve or a pneumatic valve, the operator must at least correctly identify the opening direction, opening degree mark, indication signal, etc. of the valve before installing the valve, and can operate the valve skillfully and accurately, so that the whole valve can be well known.
In addition, pay attention to the following points during the installation process:
1. Prevent the valve from being staggered, misaligned, leaked, or leaked during the installation process. Operators should clearly understand the role of each valve and its position in the process piping to prevent erroneous operation, otherwise it may cause accidents such as running materials, mixing, and rolling.
2, for the valve working at high temperature, when the temperature rises above 200 °C, the bolt is heated and stretched, it is easy to make the valve seal is not strict, the bolt should be "hot tight" when needed, when the heat is tight, it is not suitable for the valve full close position In order to avoid the valve stem from dying, it is difficult to open again; if it encounters a low temperature below 0 °C, the main valve should be antifreeze, and the bottom of the valve should be opened in time to discharge the condensation water inside. Keep warm for valves that cannot be excluded and work intermittently.
3, the valve packing gland should not be pressed too tightly, the valve stem can be flexibly rotated, the pressure is too tight, it will increase the valve stem friction, increase the operating torque and so on. When the valve is working, under normal circumstances, it is not possible to replace or add packing with any pressure. Otherwise, the leakage of the medium may cause danger.
4. When the valve leaks, the leaking part and the cause should be firstly identified. Under normal circumstances, there are two kinds of internal leakage and external leakage. External leakage is divided into packing leakage and bonnet, valve body leakage and sealing surface according to its external structure. The lining material leaks, the operator should accurately judge, and the problem that can be solved by himself should be dealt with in time, and the repairman who cannot solve it should be dealt with in time.
A small valve can not be underestimated, perhaps due to a small mistake in the operation of the installation process, the entire production chain will be affected, because we must strive to achieve zero mistakes and ensure the quality of work.
The grooved butterfly valve is a new advanced valve design technology. It adopts a unique design structure to overcome the defects of traditional butterfly valve rubber, which is easy to age, corrode and rust. It has the advantages of fast opening and closing speed, good elastic memory and long service life. . Grooved butterfly valve
The worm and the worm wheel are driven to each other to ensure a reliable seal.
First, the groove butterfly valve model:
The grooved butterfly valve acts as a regulating and cutting medium in the pipeline. After continuous improvement and innovation, the grooved butterfly valve has the characteristics of convenient operation and flexibility, good sealing performance, convenient maintenance and maintenance, and small flow resistance coefficient. At the same time, the model of the grooved butterfly valve has also increased with the date. The following are two models of the grooved butterfly valve.
1 elastic sealing valve
The elastic seat sealing gate valve is a new type of product developed by the unique valve manufacturing technology and unique material. It uses the three-dimensional eccentric structure and the design of the elastic metal ring to seal the valve body and the opening and closing butterfly plate. Uniform contact with each other. The valve
The utility model has the advantages of novel design structure, convenient and flexible operation, labor saving, convenient maintenance and long service life.
2SPD341H three eccentric two-way full metal sealing butterfly valve
SPD341H three eccentric two-way full metal sealing butterfly valve is a full metal butterfly valve, can be used in high pressure or high temperature systems, good sealing performance, enabling it to be used in a variety of media pipelines. Since the valve is a metallic valve, nothing is added.
Graphite or asbestos padding, so it will not pollute the medium when used, and it is suitable for industrial systems such as pharmaceutical, industrial, beverage, power generation, and metallurgy.
Second, the groove butterfly valve installation matters:
1The grooved butterfly valve is small in size and light in weight, and is not limited by the installation space. It can be installed at any position.
2 The flow direction of the grooved butterfly valve is bidirectional, so there is no need to avoid the flow reversal of the medium during installation;
3 When selecting the installation position of the butterfly valve, the convenience of use, maintenance and replacement of the butterfly valve should be guaranteed;
4 Butterfly valve should be stored in the indoor dry place before installation, the valve plate is slightly open between 4 ° ~ 5 °.