工业蝶阀

  What is a Butterfly Valve and How Does It Operate? Complete Guide A butterfly valve is a high-efficiency quarter-turn flow control device widely used in commercial and industrial piping systems. Known for its ultra-compact structure, lightweight design, fast operation, and cost-saving advantages, the butterfly valve differs greatly from ball valves, gate valves, and globe valves in structural layout and working principle. It is the preferred valve type for large-diameter pipeline flow isolation, throttling, and regulation. To help engineers and purchasers accurately apply this valve in different projects, this guide fully explains the definition, internal structure, operating principle, core types, and industrial characteristics of butterfly valves. 1. What Is a Butterfly Valve? A butterfly valve is a rotary motion valve that uses a disc-shaped closure member to control fluid flow. The core components include a valve body, central valve stem, butterfly disc, and sealing seat. Compared with traditional industrial valves, butterfly valves feature a shorter face-to-face length, lighter weight, and smaller installation space, making them ideal for large-bore pipeline systems where ball valves and gate valves are bulky and costly. Industrial butterfly valves are designed for liquid, gas, and low-viscosity fluid media, widely applied in water treatment, HVAC, fire protection, chemical, power, and municipal engineering systems. They can realize full opening, full closing, and partial flow throttling, taking into account both isolation and regulation functions.   2. Core Structure of a Butterfly Valve The stable operation of a butterfly valve depends on a precise matching structural system. The main components and their functions are as follows: Valve Body: Main pressure-bearing shell, available in cast iron, ductile iron, carbon steel, and stainless steel materials, supporting overall pipeline pressure load. Valve Stem: Transmission shaft that connects the actuator and butterfly disc, delivering rotational torque to drive the disc to rotate. Butterfly Disc: The core flow control component, rotating 90 degrees to block or open the fluid passage; streamlined disc design effectively reduces flow resistance. Sealing Seat: Installed on the valve body inner wall, including rubber soft seal and metal hard seal types, responsible for pipeline tight shutoff. Actuation Device: Including manual lever, gear, pneumatic, and electric actuators, used to control valve switching and adjustment. 3. How Does a Butterfly Valve Operate? (Working Principle) The operating principle of a butterfly valve is based on 90-degree quarter-turn rotary motion, with simple and efficient action logic: When the valve receives an opening signal, the actuator drives the valve stem and the butterfly disc to rotate 90 degrees horizontally. At this time, the disc is parallel to the fluid flow direction, and the pipeline forms a fully open passage with minimal flow resistance. When closing the valve, the disc rotates 90 degrees again to be perpendicular to the fluid direction. The disc surface closely fits the sealing seat, completely blocking the fluid passage and realizing pipeline isolation and tight shutoff. In addition to full opening and closing, the butterfly disc can stay at any intermediate angle between 0° and 90°, realizing precise flow throttling and pressure regulation, which makes butterfly valves superior to gate valves in flow control performance. 4. Main Types of Butterfly Valves by Structure & Seal According to sealing form and structural design, industrial butterfly valves are divided into two core categories, adapting to different working conditions: 4.1 Soft Seated Butterfly Valve Soft seated butterfly valves adopt elastic rubber materials such as EPDM, NBR, and Viton as sealing components. They rely on the elastic deformation of rubber to achieve bubble-tight zero leakage. With low cost and good sealing performance, they are suitable for normal-temperature water, air, and conventional non-corrosive media, widely used in municipal water supply, HVAC, and fire protection systems. 4.2 Metal Seated Butterfly Valve Metal seated butterfly valves adopt metal-to-metal hard sealing structure with alloy hard-facing treatment on the disc and seat surface. They feature high temperature resistance, high pressure resistance, and abrasion resistance, capable of adapting to high-temperature steam, flue gas, and corrosive industrial media. They are the main choice for heavy-duty industrial severe service. 4.3 Wafer vs Lug Butterfly Valve Wafer butterfly valve: Clamped between two pipe flanges, ultra-thin body, space-saving, suitable for compact installation scenarios. Lug butterfly valve: With threaded lugs on both sides, bolted fixed installation, supporting single-ended pipeline maintenance and disassembly, convenient for industrial pipeline overhaul. 5. Manual vs Automated Butterfly Valve Operation Butterfly valves support diversified driving modes to meet different operational frequency and automation needs: Manual Butterfly Valve: Equipped with lever or gear operator, suitable for low-frequency on-site manual operation, economical and easy to maintain. Pneumatic Butterfly Valve: Driven by air pressure, fast switching speed, with excellent explosion-proof performance, suitable for hazardous industrial environments. Electric Butterfly Valve: Driven by electric actuator, supporting remote control, signal feedback, and proportional regulation, matching intelligent pipeline control systems. 6. Key Advantages of Butterfly Valves Ultra-compact and lightweight, saving installation space and engineering cost Fast 90-degree quarter-turn operation, improving pipeline response efficiency Suitable for large-diameter pipeline systems with low overall cost Dual functions of isolation and flow throttling Simple structure, few wearing parts, and low maintenance cost 7. Industrial Applications of Butterfly Valves Butterfly valves are widely used in low-to-medium pressure and large-flow pipeline scenarios, including municipal water treatment, HVAC refrigeration systems, fire fighting pipeline systems, chemical fluid transmission, power plant circulating water systems, and environmental protection exhaust and flue gas treatment projects. 8. GEKO Valve High-Quality Butterfly Valve Solutions GEKO Valve provides a full range of industrial butterfly valves, including wafer and lug type, soft seat and metal seat designs, as well as manual, pneumatic, and electric actuated butterfly valves. Our products adopt precision casting and streamlined disc design, featuring stable sealing performance, flexible operation, and strong working condition adaptability. All valves comply with international industrial standards, providing reliable large-diameter fluid control solutions for global municipal and industrial pipeline projects. 9 Core SEO Keywords: Wafer Butterfly Valve, Lug Butterfly Valve, Soft Seated Butterfly Valve, Metal Seated Butterfly Valve, Pneumatic Butterfly Valve, Electric Butterfly Valve, Large Diameter Butterfly Valve, Industrial Butterfly Valve, Quarter Turn Butterfly Valve

吉科流体控制技术（常州）有限公司成功中标中国船舶集团有限公司（CSSC）第703研究所的项目。该项目编号为TPJG202605070010，中标公告于2026年5月7日正式发布。  供货范围包括球阀、蝶阀、截止阀和止回阀——这标志着 Geko 在海洋工程领域迈出了重要一步。 德国工程技术，深耕中国。 格科流体控制技术（常州）有限公司是格科集团的核心中国子公司。格科集团是一家拥有60多年历史的欧洲知名控制阀制造商，以其产品耐高压、耐极端温度的特性而闻名，部分产品的额定压力高达60,000 psi，工作温度范围从-252°C到649°C。  这家中国公司成立于2008年，注册资本5010万元人民币，总部位于江苏省常州市。其新工厂于2022年投产，年产能12万台，生产气动/电动球阀、蝶阀、控制阀、闸阀、截止阀、止回阀、执行器、定位器和限位开关。 卓越的业绩记录：国家旗舰项目  凭借可靠的产品质量，Geko参与了多个享有盛誉的国家级项目： 高速铁路：为中车高速列车组定制的阀门，通过了 30 万公里道路测试。超高压（UHV）电网：国家电网用40年设计寿命的防爆型电动球阀。航空航天与核电：为火箭发射基地、巴基斯坦核电项目以及多个“一带一路”国际项目提供产品。国内核电：产品应用于包括“玲珑一号”小型模块化反应堆在内的重大核电项目。战略重点：氢能与新能源 GEKO的全球战略重点是氢能领域，涵盖生产、储存、运输和加氢的整个价值链。核心技术包括抗氢脆材料、低逸散排放、防火防静电以及高压（包括液氢）处理。应用领域包括氢冶金、氢能发电、加氢站以及燃料电池容器/车辆。 领导力视角：黄雨果 自2005年以来一直领导GEKO流体控制技术（常州）有限公司总经理黄万正先生表示：“赢得中船703研究所项目是对我们技术实力和交付能力的进一步认可。我们将继续深化在船舶、核能、氢能、超高真空、航空航天等高端工业阀门市场的业务，为国家战略项目关键设备的国产化做出贡献。”