Soft seal gate valve, also known as elastic seat gate valve, is a manual valve used to connect pipeline media and switches in water conservancy engineering. The structure of the soft seal gate valve consists of a seat, a valve cover, a gate plate, a pressure cover, a stem, a handwheel, a gasket, and an inner hexagonal bolts. The valve channel is sprayed with electrostatic powder in the interior and exterior. After baking through a high-temperature furnace, it ensures the smoothness of the whole runner and the wedge groove inside the gate valve, and also gives people a sense of colour visualisation in appearance. Soft sealing gate valves are usually blue-blue highlights for general water conservancy. If used Red-red highlights are used on fire pipes. And it is deeply loved by users. It can even be said that the soft seal gate valve is a valve made for water conservancy.
Types and uses of soft seal gate valves:
As a common manual switching valve on pipelines, soft seal gate valves are mainly used in waterworks, sewage pipes, municipal drainage engineering, fire pipeline engineering, and slightly non-corrosive liquids and gases in industrial pipelines. And it can be customised according to the situation of field use, such as open rod soft seal gate valve, dark rod soft seal gate valve, extended rod soft seal gate valve, buried soft seal gate valve, electric soft seal gate valve, pneumatic soft seal gate valve, etc.
What are the advantages of soft seal gate valves:
1. The advantages of soft seal gate valves must first be in terms of its cost. Generally, most of the soft seal gate valve series use ductile iron QT450 as a whole. The cost of this valve body will be much more affordable than that of cast steel and stainless steel. Compared with the mass procurement of the project, this is quite affordable, and the quality is guaranteed.
2. Then, from the perspective of the performance characteristics of the soft seal gate valve, the gate plate of the soft seal gate valve is lined with elastic rubber, and the interior adopts a wedge structure. Using the selection of the top hand-wheel mechanism, the screw is descending to drive the elastic gate to press down, which is closed to the internal wedge groove. Because the elastic rubber gate can be stretched and extruded, it achieves a good sealing effect. Therefore, the sealing effect of the soft seal gate valve on water conservancy and some non-corrosive media is obvious.
3. Thirdly, in terms of the later maintenance of the soft seal gate valve, the structural design of the soft seal gate valve is simple and clear, easy to disassemble and install. When the valve is used for a long time, the elastic gate in the gate valve will be switched frequently, and the rubber will lose elasticity over time, resulting in lax closure and valve leakage. At this time, the structural design advantages of the soft seal gate valve are reflected. Maintenance personnel can directly open and replace the gate plate without removing the whole valve, which saves time and labour and saves human and material resources for the site.
What are the disadvantages of soft seal gate valves:
1. Speaking of the shortcomings of the soft seal gate valve, let’s look at it from an objective perspective. The core point of the soft seal gate valve is that the flexible sealed elastic gate can be retractable and automatically filled. It is really good to use soft seal gate valve sealing and airtightness for non-corrosive gases and liquids.
2. Of course, since there are advantages and disadvantages of incompleteness, there are naturally also disadvantages. The disadvantage of the soft sealing gate valve is that the elastic rubber gate cannot be used continuously in excess of 80°C temperature or with hard particles and corrosion, otherwise it will cause elastic rubber gates, deformation, damage and corrosion, resulting in pipeline leakage.Therefore, the soft seal gate valve is only suitable for use in non-corrosive, particle-free and wear-free media.
The end:
The story of the soft seal gate valve is also over here. As for the advantages and disadvantages of the soft seal gate valve, it is mainly necessary to understand the characteristics, temperature, pressure, and field use of the medium when selecting the type. In addition, the advantages and disadvantages of the soft seal gate valve mentioned in the article are combined with a comprehensive evaluation, and further in-depth selection, so as to avoid many details ignored during the selection, so that the valve There is no worries about using it.
Post time: Feb-16-2023
