In industrial fluid transmission systems, medium backflow and equipment water hammer impact are core hazards threatening operational safety—and a reliable check valve is the key to addressing this pain point. Drawing on its rich technical expertise in the valve industry, OUWEI Swing Check Valve delivers stable and efficient backflow prevention solutions for sectors like petrochemicals, water supply and drainage, and power metallurgy through precision engineering and strict manufacturing standards, acting as a "safety sentinel" for industrial fluid systems.
The OUWEI Swing Check Valve features a streamlined disc design, reducing medium flow resistance by 15%-20% compared to traditional models. While ensuring maximum flow capacity, it enables rapid disc response: when medium flows forward, the disc opens naturally via medium thrust to maximize flow area; in case of sudden flow deceleration or backflow, the disc closes swiftly (≤0.3 seconds) under the combined effect of its own gravity and reverse medium pressure. This effectively mitigates water hammer damage to pipelines and pump-valve equipment, extending system service life.
For material selection, core components are crafted from corrosion-resistant and wear-resistant materials such as CF8/CF8M stainless steel and WCB carbon steel, processed through precision casting and heat treatment. The sealing surfaces of the valve seat and disc offer two options—hard sealing (Stellite alloy overlay welding) or soft sealing (PTFE reinforced material)—with sealing performance meeting ANSI B16.104 Class V standards. It ensures leak-free operation within a temperature range of -29℃~425℃ and pressure rating of 1.6MPa~10.0MPa, adapting to complex transmission scenarios including acid-base media, high-temperature steam, and viscous fluids.
In terms of structure, the valve adopts a horizontal installation design. The disc rotating shaft uses stainless steel pins paired with self-lubricating bearings, ensuring smooth opening/closing without jamming. The inner wall of the valve flow channel is finely polished to minimize medium deposition and corrosion risks, reducing maintenance needs. For large-caliber applications (DN50~DN600), the disc’s force-bearing structure is optimized with additional buffer devices to enhance operational stability. Moreover, the product is manufactured in full compliance with international and domestic standards such as API 6D and GB/T 12224, enabling seamless integration with global pipeline systems, easy installation, and strong interchangeability.
From stable transmission in municipal water supply and drainage networks to medium circulation in petrochemical plants and steam systems in thermal power stations, OUWEI Swing Check Valve has become a trusted choice in industrial fluid control, thanks to its core advantages of "safety, reliability, high efficiency, energy savings, and durability." Upholding the principle of "Quality Builds Brand, Technology Drives Innovation," we help customers cut operational costs and boost system safety through full-cycle quality control and professional technical support.
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