ShareDelivering Reliability in China’s Frigid Northeast
When CHD Huadian Group sought to upgrade the water management systems at its flagship power station in Northeast China, engineers faced a critical challenge: finding valves capable of withstanding the region’s harsh winters while ensuring leak-free operation in high-pressure water circuits. Temperatures in Heilongjiang, Jilin, and Liaoning provinces routinely plummet below -30°C, and conventional butterfly valves had struggled with seal degradation and frequent maintenance under such extreme thermal cycling.
Shanghai Rogers Valve Co., Ltd. answered the call with its Triple Eccentric Hard-Sealed Butterfly Valve – a solution engineered for mission-critical environments. Unlike standard valves, Rogers’ design featured a revolutionary three-dimensional offset geometry, allowing the metallic sealing surfaces to engage progressively without friction. This innovation eliminated wear-induced leaks, a persistent issue in the plant’s existing infrastructure.
During installation, the power station’s maintenance team noted the valve’s remarkable adaptability. Its hardened stainless steel sealing components resisted corrosion from treated water, while the fire-safe construction provided an added layer of safety in high-risk zones. Even during sudden temperature swings, the valve maintained consistent performance, thanks to its optimized thermal expansion tolerance.
The results spoke volumes. Over 18 months of continuous operation, CHD Huadian reported zero leakage incidents across the cooling water and feedwater lines where Rogers’ valves were deployed. Maintenance cycles extended by 60%, significantly reducing downtime in the coal-fired power unit. “These valves have redefined reliability for us,” remarked a plant operations manager. “They handle pressure surges during peak loads and stay operational in conditions that would cripple lesser equipment.”
Today, the success in Northeast China has made Rogers’ triple eccentric valves a benchmark for critical water systems in the energy sector. CHD Huadian is now evaluating broader adoption across its national facilities, proving that innovation thrives where resilience meets precision.
