Industry News

Underground pipeline upgrades are placing greater emphasis on valve accessibility, maintenance planning, and long-term operational efficiency. This article examines how Extended Stem Butterfly Valves address buried installation challenges, including operating access, material compatibility, and integration with modern water infrastructure.

As water infrastructure modernization accelerates, Extended Stem Butterfly Valves are gaining attention for their role in improving underground pipeline accessibility and maintenance planning. This article explores how extended stem designs support evolving water systems by addressing installation challenges, lifecycle management, and the growing demand for practical valve solutions.

As underground pipeline systems become more complex in 2026, valve accessibility and maintenance planning are receiving greater attention. This article explores how Extended Stem Butterfly Valves are being applied in modern infrastructure projects, discussing their role in improving underground valve operation, supporting pipeline lifecycle management, and adapting to changing requirements in water and industrial systems.

The choice between a lever handle and a gear operator (worm gear) for a butterfly valve mainly depends on pipe diameter, working pressure, frequency of operation, as well as considerations of effort and cost. In short: Lever-handle butterfly valve: Simple structure, low cost, and quick to open/close. Suitable for small diameters (typically DN ≤ 200 mm), low pressure, and infrequent operation. Gear-operated butterfly valve: Uses a worm gear reducer for transmission, making operation easier, with better sealing and longer service life. Suitable for large diameters (typically DN > 200 mm), medium/high pressure, frequent operation, or applications requiring precise flow regulation.

Hard seal and soft seal are the two most fundamental sealing methods for valves. Their fundamental difference lies in the material of the sealing pair (the contacting parts when the valve is closed). Simply put: A soft seal is like a "rubber gasket"—it has good elasticity, can achieve zero leakage, but cannot withstand high temperatures or high pressures. A hard seal is like "metal-to-metal"—it is stronger, more durable, suitable for harsh conditions, but its sealing performance is slightly inferior.

Does the double eccentric butterfly valve have a pinless design? if not sure, please check this passage!