Soft Seal Gate Valve Overview:
Soft-sealed gate valve, also known as elastic seated gate valve, is a manual valve used to connect pipeline medium and switch in hydraulic engineering. The structure of soft sealing gate valve is composed of valve seat, bonnet, gate, gland, valve stem, handwheel, gasket, and hexagon socket head bolt. The inside and outside of the valve runner are sprayed with electrostatic powder. After being baked in a high-temperature furnace, the smoothness of the entire runner and the wedge-shaped groove inside the gate valve is guaranteed, and the appearance also gives a visual sense of color. , The soft sealing gate valve is usually used in blue-blue highlights for general water conservancy, and red-red highlights are used for fire pipelines. And it is deeply loved by users. It can even be said that the soft sealing gate valve is a valve made for water conservancy.
Types and Uses of Soft Sealing Gate Valves:
As a common manual switch valve on pipelines, soft-sealed gate valves are mainly used in water works, sewage pipelines, municipal drainage works, fire pipeline works, and slightly non-corrosive liquids and gases on industrial pipelines. And it can be customized according to the situation of on-site use, such as open-rod soft-sealed gate valve, dark-rod soft-sealed gate valve, extended-rod soft-sealed gate valve, buried soft-sealed gate valve, electric soft-sealed gate valve, pneumatic soft-sealed gate valve, etc.
What Are The Advantages of Soft Sealing Gate Valve:
1. The advantages of soft-sealed gate valves must first be seen from its cost. Generally, most of the soft-sealed gate valve series are made of ductile iron QT450. The cost of this valve body will be much more affordable than the cost of cast steel and stainless steel. This is quite affordable compared to engineering bulk procurement, and it is under the condition that the quality is also guaranteed.
2. Then, from the performance characteristics of the soft-sealed gate valve, the gate of the soft-sealed gate valve is lined with elastic rubber, and the interior adopts a wedge structure. Using the optional top handwheel mechanism, the screw rod is lowered to drive the elastic gate to press down, and it is sealed with the internal wedge groove. Because the elastic rubber gate can be stretched and squeezed, so as to achieve a good sealing effect. Therefore, the sealing effect of soft sealing gate valve in water conservancy and some non-corrosive media is obvious.
3. Again, in terms of the later maintenance of the soft-sealed gate valve, the soft-sealed gate valve has a simple and clear structure design, and is easy to disassemble and install. When the valve has been used for a long time, the elastic gate in the gate valve will be opened and closed frequently, and the rubber will lose its elasticity after a long time, resulting in loose closing and leakage of the valve. At this time, the advantages of the structural design of the soft-sealed gate valve are reflected, and the maintenance personnel can directly disassemble and replace the gate without dismantling the entire valve, which saves time and effort and saves manpower and material resources on site.
What Are The Disadvantages Of Soft Sealing Gate Valve:
1.Speaking of the shortcomings of soft-sealed gate valves, let’s look at them from an objective point of view. The core point of the soft-sealed gate valve is that the soft-sealed elastic gate can be stretched and retracted automatically to fill, and the sealing and air tightness of the soft-sealed gate valve is really good for non-corrosive gases and liquids.
2. Of course, nothing is complete, since there are advantages and disadvantages, the disadvantage of soft-sealed gate valves is that the elastic rubber gate cannot be used continuously at temperatures exceeding 80 °C or with hard particles and corrosive conditions, otherwise it will cause elasticity. The rubber gate is deformed, damaged and corroded, which leads to the leakage of the pipeline. Therefore, the soft-sealed gate valve is only suitable for non-corrosive, particle-free and non-abrasive media.
Post time: Dec-01-2022