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توفر شركة ديلكو للصمامات حلولاً متنوعة ومثالية للصمامات الصناعية، خاصة لصمامات التحكم.
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صمام البوابة - البنية والخصائص والتطبيق - مقدمة
- صمام ديلكو
Gate valve is an important equipment widely used in various industrial fields, its main role is to regulate or block the fluid flow, so as to realize the control of fluid. Below by صمام ديلكو take you to understand the structure and basic working principle of the gate valve, to help you use and maintain the gate valve more effectively.
Structure of gate valve
The basic structure of gate valve mainly includes valve body, valve cover, valve plate, valve stem and sealing ring and other parts. Normally, the transmission device of the gate valve is a handwheel, only in some special working conditions, you need to use an electric device to operate the gate valve.
- Valve body: the valve body is the main part of the gate valve, used to connect the pipeline, play the role of the channel.
- Valve cover: the valve cover is located in the upper part of the valve body, mainly used to close the valve body.
- Valve plate: the valve plate is the key part of the gate valve, mainly used to control the passage of the fluid.
- Valve stem: the valve stem by rotating or lifting drive valve plate, so as to realize the opening and closing of the valve.
- Seal ring: the seal ring is the valve plate and the valve body contact part, through a good sealing effect to ensure that the valve is closed when the fluid will not leak.
Working principle of gate valve
Gate valves work by inserting a physical barrier (gate or disk) into the pipeline that seals when closed and raises or lowers it when open. The barrier is raised and lowered by means of a handwheel on the bonnet, which acts as a valve actuator. It turns clockwise and counterclockwise to start or stop the flow of liquid as required.
Gate valve features
- Small fluid resistance. Gate valve body inside the media channel is straight through, as mentioned above, the gate valve can only be fully open or fully closed, when the gate valve is fully open state, the medium from the gate valve body channel when passing through the flow resistance is close to 0, the flow resistance is very small.
- Switching operation labor-saving. Because the gate valve gate opening and closing, the direction of movement is up and down, and the valve channel perpendicular to the direction of movement of the medium, compared with the globe valve, the gate valve switching operation is more labor-saving.
- Bidirectional flow. Gate valve is a two-way valve, that is, the valve channel medium flow direction is not restricted, the medium can flow from the gate valve on both sides of the direction of any flow, does not affect the normal opening and closing of the gate valve. So the gate valve is suitable for installation in the media flow direction may change the pipeline.
- Good sealing performance. Gate valve is to do to cut off the use of media, so from the sealing performance, the sealing performance of the gate valve is better than the butterfly valve.
Gate valve applications
- Petrochemical: gate valves can be used in petrochemical industry in the oilfield, refining, chemical industry and other industrial applications, to help control and regulate liquid and gas.
- Food manufacturing: gate valves can be used in the food manufacturing industry in the production line of spices, beverages, beer, juice, candy, etc., to control and adjust the flow and pressure.
- Water and sewage treatment: gate valve can be used for water treatment, sewage treatment, desalination and other treatment processes in the flow control and adjustment.
- Industrial wastewater treatment: gate valves can be used in the treatment of industrial wastewater process, for multi-stage structure in the fluid control and regulation, as well as for volatile liquid control.
حول ديلكو للصمامات
صمام ديلكو is a world-leading valve manufacturer which specialized in actuated valves and control valves with rich experience for 20 years. Our main products include a wide range of control valves,motorized valves, pneumatic valves, solenoid valves, manual valves, actuator and valve fittings. We are dedicated to offering customers reliable and efficient valve products for various industrial and commercial uses.
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