Flange
gate valve, also known as gate
Valve or shut-off valve, is a common pipeline control valve. It mainly consists of valve body, valve cover, gate plate, valve stem, nut, sealing ring and other components. Its working principle is to rotate the handwheel or electric device to make the gate move vertically along the valve seat, thereby achieving the purpose of opening or closing the valve, cutting off or connecting the fluid channel.
The characteristics of flange gate valves include:
1. Simple structure: The gate valve has a compact structure and is easy to operate. It can be opened and closed by simply rotating the handwheel, making maintenance and repair relatively easy.
2. Good sealing performance: Double sided sealing is usually used between the gate and valve seat, which can effectively prevent medium leakage and is suitable for situations that require high sealing performance.
3. Low fluid resistance: When the gate valve is fully open or fully closed, the fluid resistance it passes through is small, making it suitable for high flow and low pressure situations.
4. Wide application range: flange gate valves are widely used in various industrial fields such as petroleum, chemical, power, metallurgy, water treatment, etc., to regulate the flow rate in pipelines or cut off fluids.
5. Diverse types of valves: Depending on different working media and conditions, flange gate valves come in various materials and specifications such as cast iron, stainless steel, and alloy steel.
Overall, flange gate valves are a practical and reliable type of valve with good sealing and easy operation.