Overview
An automatic butterfly valve is a quarter-turn valve that uses a rotating disc to control fluid flow. It is widely favored in industrial applications for its simplicity, reliability, and cost-efficiency. Unlike manual butterfly valves, automatic versions integrate actuators (electric, pneumatic, or hydraulic) for remote or programmed operation, making them ideal for large-scale systems requiring frequent adjustments. The valve's disc rotates 90 degrees to open or close the flow path, offering minimal pressure drop when fully open. Its compact and lightweight design reduces installation space and costs compared to gate or globe valves. Common applications include water supply, HVAC systems, chemical processing, and wastewater treatment.
Structure and Working Principle
The automatic butterfly valve consists of a disc, stem, seat, and actuator. The disc is mounted on a rotating shaft (stem), which connects to an actuator for automated control. When the actuator receives a signal, it rotates the disc to modulate or shut off flow. The seat, typically made of elastomers like EPDM or PTFE, ensures a tight seal when closed. Pneumatic actuators use compressed air for rapid operation, while electric actuators offer precise control via motors. Hydraulic actuators are used for high-torque applications. The valve's streamlined design minimizes turbulence, making it energy-efficient for large-diameter pipelines.
Key Features
Automatic butterfly valves are known for their quick operation, often achieving full open/close positions in seconds. Their compact design saves space and weight, reducing structural support costs. The low-pressure drop across the valve enhances energy efficiency in pumping systems. Materials like stainless steel or PVC provide corrosion resistance for aggressive media, while elastomer seats ensure leak-tight sealing. Modern variants include smart valves with IoT connectivity for real-time monitoring and diagnostics, improving maintenance planning and system reliability.
Application Areas
These valves are ubiquitous in water treatment plants for controlling raw water, clean water, and sludge. In HVAC systems, they regulate chilled or hot water flow. The chemical industry uses them for handling acids, alkalis, and solvents, provided compatible materials are selected. Other applications include food processing (sanitary designs), fire protection systems, and power plants. Their versatility and automation compatibility make them a staple in process industries requiring reliable flow control with minimal maintenance.
Maintenance and Precautions
Routine maintenance includes inspecting the disc, seat, and actuator for wear or leakage. Lubricate the stem periodically to ensure smooth operation. For pneumatic actuators, check air supply lines for leaks; for electric actuators, verify wiring and signal integrity. Avoid installing the valve in a position where debris can accumulate on the disc. Ensure the actuator's torque settings match the valve's requirements to prevent damage. In corrosive environments, select materials like 316 stainless steel or lined valves to extend service life.
B2B Procurement Guide
When sourcing automatic butterfly valves, specify the pipe size, pressure rating, temperature range, and fluid compatibility. Request certifications like ISO 9001 or API 609 for quality assurance. Compare actuator options: pneumatic for speed, electric for precision, or hydraulic for heavy-duty use. Leading manufacturers include Emerson, Siemens, and Bray International. Bulk orders (10+ units) may qualify for discounts. For reference, DN100 stainless steel valves with electric actuators typically range from $800-$1,500. Always request factory test reports to verify performance before delivery.
Related Manufacturers
- 主营：执行器、切断阀、气动阀门、气动蝶阀、气动球阀、气动截止阀、气动闸阀、电动阀门、电动球阀、电动闸阀、电动截止阀、调节阀、自力式调节阀、套筒调节阀、笼式调节阀、减压阀、电磁阀、限位开关、过滤减压阀、电动执行器
- 主营：矿用门、轨道工具、锚杆钻机、矿用蝶阀式排渣器、喷浆机、风镐破碎镐、无压风门、给煤机、注浆机、矿用防火栅栏门、皮带硫化机、洗靴机、皮带纠偏装置、凿岩机、防溢裙板、挡尘帘、单体液压支柱、矿车轮对、轨道轮、地辊、搅拌桶、矿用电机车、皮带清扫器、皮带除铁器、料仓空气炮清堵器
- 主营：打压机、试漏机、增压泵、安全阀、报警阀、检测仪、倒水机、实验机、测试台、加压泵、测试仪、试验机、胀管机、储气瓶、灌装泵、试验台、调校仪、增压装置、组合开关、超高压泵、胀接设备、充气装置、测试系统、检测设备、泄露检测
- 主营：电动球阀、气动球阀、气动切断阀、电动蝶阀、气动蝶阀、法兰蝶阀、气动四氟蝶阀、电动调节阀、气动调节阀、气动闸阀、电动闸阀、气动截止阀、电动截止阀、气动V型球阀、法兰球阀、法兰闸阀、气动管夹阀、气动快速切断阀、蒸汽截止阀、美标截止阀、篮式过滤器、气动四氟球阀、法兰止回阀、气动O型切断阀、防爆切断阀
- 主营：水肥一体机、自动反冲洗叠片过滤器、自动反冲洗砂石过滤器、电动蝶阀、离心过滤器、电磁阀、风吸式杀虫灯
- 主营：波纹管、金属软管、粮食输送机、通风蝶阀、电动调节蝶阀、螺旋上料机、绞龙输送机、螺旋送料机、绞龙上料机、螺旋给料机、风道调风阀、螺旋输送机、污泥输送机、非金属软连接、膨胀节、风机软连接、波纹补偿器、非金属补偿器、翻板阀、不锈钢膨胀节、电动风门、不锈钢波纹管、伸缩节、波纹管补偿器、无轴螺旋输送机
- 主营：电动闸阀、电动球阀、气动阀门、蝶阀、气动蝶阀、调节阀、电动执行器、液控闸阀、截止阀
- 主营：自动取样阀、柱塞阀、耐腐蚀取样阀、电动蝶阀、气动蝶阀、采样阀、柱塞放料阀、无菌取样阀、一体阀、柱塞取样阀、手动取样阀、法兰取样阀、沥青取样阀、取样阀门、自复位取样阀、高压取样阀、电动球阀、密闭取样阀、高密封取样阀、气动球阀、QYF、气体取样阀、反应釜取样装置、衬氟取样阀、不锈钢取样阀
- 主营：保温水箱、供水设备、不锈钢水箱、变频给水系统、户外智慧泵房、直连式供水设备、城乡一体化供水设备、无负压供水设备、城乡一体化二次供水
- 主营：树脂除氧器、白水回收过滤器、催化除氧树脂、全自动软水器、反渗透纯水设备、一体化生活污水设备、冷凝水回收除铁过滤器、热力除氧器、节能除垢除氧过滤器、盘式过滤器、二位三通阀、多阀控制器
- 主营：煤闸门、伸缩节、过滤器、电动密封蝶阀厂家、指示器、隔绝门、挡板门、阻火器、补偿器、膨胀节、锁气器、圆风门、插板门、人孔门、钢带尺、挡板风门、单芯可调、叶片钢制、单孔管夹、保温井盖、锅炉电动、塔底滤网、管道可调、恒力弹簧、气动风门、蒸汽管道
- 主营：罗托克电动执行机构、多回转电动执行器、电动闸阀、电动蝶阀、电动调节阀、电动球阀、部分回转电动执行器、矿用隔爆型电动闸阀、矿用隔爆型执行器、西博思执行机构
- 主营：气动法、减压阀、刀闸阀、安全阀、气动薄、汇流排、德国top、排污阀、减压器、电磁阀、截止阀、疏水阀、r72低压、池底阀、止回阀、对夹蝶、平衡阀、二阀组、流程泵、帽防爆、逆止阀、过滤器、脉冲阀、冷凝泵、进口阀门
- 主营：单座阀、取样阀、阀门手动、螺纹蝶阀、手动蝶阀、卫生蝶阀、卫生容器、卫生阀门、工业阀门、液混合泵、卫生球阀、气动智能、不锈钢泵、软管接头、电动阀门、不锈钢法兰、内外抛光管、洁净离心泵、气动执行器、止回阀焊接、不锈钢气动、气动换向阀、法兰波纹管、卫生离心泵、手动截止阀
- 主营：表冷器、风幕机、冷凝器、全自动排烟阀、加热器、换热器、风机箱、散热器、暖风机、防火阀、矿用电热、轴流风机、中央空调、新风机组、高压风机、消防排烟、节能风机、屋顶风机、静音风机、采暖机组、空调机组、排烟风机、排烟风机箱、风机盘管、防火风管、防火板