300X Slow Closing Check Valve Product Introduction
Product Overview:
The 300X Slow Closing Check Valve is an advanced hydraulic control valve. It is designed to prevent water hammer and ensure the safe operation of pipeline systems. This valve automatically adjusts the flow rate during opening and closing. Its slow-closing function effectively reduces the water hammer impact caused by reverse flow or sudden pump shutdown. This feature protects pipelines and other equipment.
Structure and Features:
– Slow Closing Function: The 300X Slow Closing Check Valve is equipped with a hydraulic slow-closing system. This system gradually closes the valve when the flow rate in the pipeline decreases to a certain level. This process prevents the occurrence of water hammer.
– Dual-Chamber Design: The valve’s control chamber is divided into upper and lower parts. Hydraulic control enables the slow-closing function. The closing time can be adjusted based on system requirements.
– High Sealing Performance: The valve disc and seat are made of high-quality rubber and stainless steel. This ensures efficient sealing and prevents leakage of the medium.
– Corrosion Resistance: The valve body is typically made from high-strength cast iron or ductile iron. It undergoes anti-corrosion treatment, making it suitable for various water media.
Application Fields:
The 300X Slow Closing Check Valve is widely used in water supply systems, firefighting systems, industrial circulating water systems, and pump stations. Its primary function is to prevent the backflow of the medium. It protects the safety of pumps and pipeline systems. This valve is especially useful in conditions with significant water pressure fluctuations.
Operating Conditions:
– Pump Outlet: The 300X Slow Closing Check Valve is commonly installed at the pump outlet. It prevents backflow when the pump stops. This avoids water hammer impact on the pump and pipeline.
– High-Rise Building Water Supply: In high-rise building water supply systems, the water pressure is high. The slow-closing check valve effectively prevents water hammer caused by pump shutdown. This ensures the safe operation of the water supply system.
– Long-Distance Water Transmission Pipelines: In long-distance water transmission pipelines, pressure fluctuations are significant. The slow-closing function of the valve smoothly regulates pressure changes. This prevents pipeline damage.
– Fire Protection Systems: In firefighting systems, the valve prevents pipeline rupture caused by water hammer. This ensures the proper operation of firefighting equipment.
Working Principle:
When the pump is operating normally, the medium flows through the valve. The valve disc automatically opens. When the pump stops or an emergency such as a power failure occurs, the valve disc gradually closes. Hydraulic control prevents backflow and effectively suppresses water hammer. The closing speed can be precisely controlled by adjusting the hydraulic system. This adjustment is based on actual operating conditions.
Main Technical Parameters:
– Nominal Pressure: 1.0MPa, 1.6MPa, 2.5MPa
– Nominal Diameter: DN50-DN800
– Applicable Media: Clean water, seawater, other non-corrosive liquids
– Applicable Temperature: 0°C-80°C
Installation and Maintenance:
– Installation Position: The valve should be installed in a horizontal pipeline. The direction indicator must match the flow direction of the medium.
– Maintenance Requirements: Regularly check the valve’s sealing performance. Also, check the hydraulic system’s operating condition. Ensure there is no leakage and that the operation is smooth.
Advantages:
The 300X Slow Closing Check Valve effectively prevents water hammer. It also allows flexible adjustment of the closing speed. This flexibility meets different system requirements. The valve reduces the risk of system damage due to pump shutdown or power failure. It extends the service life of pipelines and equipment.
Conclusion:
The 300X Slow Closing Check Valve is a critical component. It ensures the safe and efficient operation of pipeline systems. This valve is particularly valuable in conditions where water hammer prevention is essential. Its reliable slow-closing performance and excellent sealing make it an ideal choice for various liquid transmission systems.
