OverviewThe D941X Flange Electric Butterfly Valve is a type of valve that uses an electric motor as the driving source to control the 90-degree rotational movement of the disc for opening, closing, or regulating the medium in a pipeline. This valve adopts a flange connection method, securely fastened to the pipeline flanges via bolts, ensuring stable and reliable installation. Upon receiving control signals, the electric actuator transmits the motor's rotational torque to the valve stem through an internal gear drive or worm gear mechanism, thereby driving the attached disc to rotate precisely within the valve body. The disc sealing surface is typically overlaid with elastic materials such as rubber, forming an interference fit with the valve seat on the inner wall of the valve body to achieve bidirectional soft sealing. The D941X Electric Butterfly Valve features simple operation, a high degree of automation, and the capability for remote and intelligent control. It is widely used in water supply and drainage, HVAC, fire protection, power systems, and industrial automation applications. D941X Flange Electric Butterfly Valve Product IllustrationFeatures1、Electric Intelligent Control: Equipped with an integrated or split-type electric actuator capable of receiving 4-20mA or on/off signals for precise control. Supports remote operation, automatic regulation, and centralized control, offering a high degree of intelligence.2、Sturdy Flange Connection: The valve body features a standard flange end face design, ensuring high connection strength and excellent sealing performance. Installation is stable and secure, making it suitable for medium- and high-pressure pipeline systems.3、High-Performance Soft Seal: The disc sealing ring is integrally overlaid with elastic materials such as EPDM, NBR, or FKM, providing superior sealing performance. Capable of achieving bidirectional zero leakage (sealing class up to Class VI).4、Low Flow Resistance & Energy-Saving Design: When fully open, the disc thickness is the only obstruction in the flow path, resulting in an extremely low flow resistance coefficient. This effectively reduces pressure loss in the pipeline system and saves operational energy consumption.5、Compact and Durable Structure: Compared to gate valves of the same diameter, it features a shorter face-to-face length and lighter overall weight, occupying minimal space. Key components are made of stainless steel or copper alloy, offering strong corrosion resistance and a long service life.6、Versatile Control Modes: Offers multiple control modes including on/off and regulating types. Can be equipped with features such as limit switches, torque protection, and manual/automatic switching to adapt to various operational requirements.7、Easy and Economical Maintenance: Modular design allows for convenient replacement of main sealing components. The electric actuator boasts a high protection rating (typically IP67), suitable for harsh environments like humidity and dust, resulting in low maintenance costs.8、Safe and Reliable Operation: Includes functions such as overload protection and signal loss self-locking, ensuring safe and reliable valve performance under abnormal conditions and preventing system failures.

OverviewThe D942X Electric Double Eccentric Butterfly Valve is a pipeline control device featuring a double eccentric structure design. Its stem axis deviates from both the centerline of the disc sealing surface and the centerline of the pipeline, forming a unique double eccentric trajectory. This allows the disc to quickly disengage from the valve seat sealing surface upon opening, significantly reducing frictional wear between the sealing pair, lowering operating torque, and extending the valve's service life. The valve utilizes a wafer-type connection, clamped between two pipeline flanges using stud bolts, offering a compact structure and convenient installation. The disc sealing ring employs elastic materials such as NBR (Nitrile Butadiene Rubber) or EPDM (Ethylene Propylene Diene Monomer) to form a soft sealing pair. Driven by an electric actuator rotating the shaft 90°, the valve achieves precise flow regulation and rapid opening/closing. It is widely used in water supply, drainage, HVAC (Heating, Ventilation, and Air Conditioning), and pipeline systems handling corrosive media in industries like chemical engineering.Product Image of D942X Electric Double Eccentric Butterfly Valve Features1、Double Eccentric Structure, Low Wear and Long Life: Featuring a double eccentric design, the stem axis deviates from both the centerline of the disc sealing surface and the centerline of the pipeline. This allows the disc to instantly disengage from the valve seat sealing surface upon opening, eliminating unnecessary挤压 and friction. It significantly reduces operating torque and greatly extends the valve's service life.2、Quick Opening/Closing, Low Operating Torque: The valve achieves full opening or closing with a 90° rotation of the disc. When paired with an electric actuator, rapid open/close control is achieved. Due to the torque-reducing effect of the double eccentric structure, the required operating force is low, allowing for the selection of smaller, more cost-effective actuators.3、Low Fluid Resistance: The disc features a streamlined design. When the valve is fully open, the disc aligns parallel to the flow direction of the medium. The flow path is nearly straight-through, ensuring smooth fluid flow with minimal pressure loss, resulting in significant energy savings.4、Excellent Sealing Performance: Utilizing a soft seal pair structure, the disc sealing ring is made of high-quality elastic materials such as NBR, EPDM, or Viton. This forms a reliable seal against a stainless steel or alloy steel seat, achieving bidirectional zero-leakage sealing and meeting the tight shut-off requirements for low to medium pressure conditions.5、Compact Structure, Easy Installation and Maintenance: The wafer-type connection design results in a short face-to-face dimension, small volume, and light weight, making it particularly suitable for installations in confined spaces. The valve components feature a high degree of standardization, simplifying maintenance operations such as disassembling and replacing seals.6、Wide Applicability: The valve body can be manufactured from various materials including cast iron, ductile iron, carbon steel, and stainless steel. The seal ring material can be selected from different rubber compounds based on the medium's characteristics. Combined with the remote automatic control function of the electric actuator, it is widely used in pipeline systems handling liquids, gases, and powdery media across industries such as water treatment, HVAC, water supply/drainage, light industry, and chemical engineering.

OverviewThe D943H Stainless Steel Electric Hard-Sealed Butterfly Valve is a valve designed for precise on/off control or regulation of pipeline media. It features a fully stainless steel valve body with a metal hard-sealed structure and is driven by an electric actuator, which enables 90-degree rotary motion of the disc. Utilizing a triple-offset or multi-offset design principle, the sealing surfaces of the disc and the valve seat rapidly separate and re-engage during operation, effectively reducing friction and wear. The transmission mechanism transfers the rotational torque from the electric actuator directly to the valve stem, driving the disc to rotate accurately within the valve body. Both the valve seat and the disc sealing pair are made of high-hardness metal materials, such as stainless steel or hardfaced alloys, and are precision-machined to form a reliable metal-to-metal seal. The D943H Electric Hard-Sealed Butterfly Valve offers high-temperature resistance, high-pressure tolerance, corrosion resistance, and a long service life, making it particularly suitable for demanding applications in industries such as chemical processing, metallurgy, power generation, pharmaceuticals, and food processing.D943H Stainless Steel Electric Hard-seal Butterfly Valve – Product Drawing Features1、Full Stainless Steel Construction: Main components such as the valve body, stem, and disc are made of 304/316 stainless steel, offering excellent corrosion resistance and hygiene. Suitable for applications with high cleanliness requirements, such as food and pharmaceutical industries.2、Metal Hard-Seal Design: The sealing pair utilizes processes like stainless steel with hardfacing or thermal spraying to form high-hardness metal sealing surfaces. This provides exceptional wear and erosion resistance, resulting in a service life far exceeding that of soft-sealed butterfly valves.3、Multi-Offset Technology: Employs single-offset, double-offset, or triple-offset designs. This allows the disc and seat to separate instantly during valve operation, enabling frictionless opening and closing. Benefits include low operating torque and minimal sealing surface wear.4、Electric Intelligent Control: Equipped with integrated or split-type electric actuators. Supports 4-20mA analog signals or on/off control for precise flow regulation and remote automated operation.5、High-Temperature & High-Pressure Suitability: The metal hard-seal construction allows it to withstand higher working temperatures (typically up to 425°C or above) and higher working pressures. Suitable for high-temperature, high-pressure media like steam and thermal oil.6、Superior Sealing Performance: Leverages the wedge-like compression effect generated by the offset design to achieve tight metal-to-metal contact upon closing. Provides reliable bidirectional sealing, with leakage levels potentially meeting ANSI Class VI.7、Fire-Safe Design: Some models incorporate fire-safe features. In the event of a fire, the metal sealing pair can maintain a degree of sealing integrity, complying with standards such as API 607.8、Easy and Economical Maintenance: Features a rational structural design and wear-resistant sealing surfaces, leading to extended maintenance intervals. The electric actuator includes functions like overload protection and signal-loss self-locking, ensuring safe and reliable operation.

OverviewThe D971F Electric Fluorine-Lined Butterfly Valve is a corrosion-resistant valve that utilizes a high-performance fluorine-lining process (polytetrafluoroethylene). It is designed for precise on/off control or flow regulation of corrosive media in pipelines, achieved through 90-degree rotation of the disc driven by an electric actuator. The valve features a wafer or flanged connection design, with both the inner wall of the valve body and the surface of the disc completely lined with polytetrafluoroethylene (PTFE) or modified fluoropolymer, providing full flow path corrosion protection. Upon receiving control signals, the electric actuator transfers motor torque to the valve stem via a gear reduction mechanism, driving the disc to rotate precisely within the fluorine-lined seat. The fluorine lining offers exceptional chemical inertness, enabling the valve to withstand a wide range of highly corrosive media, including strong acids, alkalis, and organic solvents. The D971F Electric Fluorine-Lined Butterfly Valve is widely used in the control of corrosive media pipelines across industries such as chemical processing, pharmaceuticals, electroplating, and environmental protection. D971F Electric Fluorine-Lined Butterfly Valve Product Illustration Features1、Full Flow Path Fluorine-Lining Anti-Corrosion: The inner cavity of the valve body and the surface of the butterfly disc are entirely lined with fluoroplastics such as polytetrafluoroethylene (PTFE), PFA, or FEP through overall molding or sintering processes, forming a complete corrosion-resistant barrier. This provides excellent chemical stability and resistance to most highly corrosive media.2、Electric Intelligent Control: Equipped with an integrated or separated electric actuator, supporting 4–20 mA signal input or switch control. It enables remote automated operation, proportional regulation, and program control, making it suitable for automated production lines.3、Zero-Leakage Sealing Design: The butterfly disc features a fluorine rubber coating or fully fluor-lined structure, forming an interference fit with the fluor-lined valve seat. This ensures superior sealing performance, achieving bidirectional zero leakage (sealing level up to Class VI) and effectively preventing medium leakage.4、Lightweight and Compact Structure: Adopting wafer or flange connection, with short face-to-face dimensions and light weight, requiring minimal installation space and facilitating layout in densely packed pipelines. The electric actuator is compact in size, offering high overall integration.5、Low Torque and Wear Resistance: The fluor-lining layer has a low friction coefficient, reducing the opening and closing resistance of the butterfly disc. The electric actuator is equipped with torque protection to prevent overload damage and extend valve service life.6、Temperature and Pressure Adaptation: The fluor-lining layer can withstand temperatures ranging from -29°C to 180°C, with specially modified fluoroplastics capable of enduring higher temperatures. The valve design pressure can reach PN16, meeting various operational requirements.7、Easy and Safe Maintenance: The simple structure allows for easy disassembly. The fluor-lining layer exhibits good anti-adhesion properties, preventing medium accumulation. The electric actuator features a high protection rating (typically IP67), making it suitable for humid and corrosive environments.8、Optional Sanitary Configuration: Polished finishes and sterile design versions are available to meet cleanliness requirements in industries such as pharmaceuticals and food. Supports Clean-in-Place (CIP) and Sterilization-in-Place (SIP) processes.

D971X electric rubber-lined butterfly valve is an industrial automation execution unit consisting of a high-performance intelligent electric actuator and a center-line rubber-lined valve body. By receiving standard 4-20mA DC analog signals or switch signals from control systems, the actuator provides torque to drive the disc, rotating it within a 0-90 degree range. This adjusts the fluid flow area or achieves tight shut-off in real-time. The body cavity and disc sealing surfaces are fully lined with high-quality elastomers (e.g., EPDM, NBR), providing excellent corrosion and wear resistance while ensuring bi-directional bubble-tight zero leakage at low torque. Due to its compact structure, high flow capacity, and cost-effectiveness, the D971X is widely used in water supply, sewage treatment, environmental protection, and general industrial fluid control networks.Product Image of D971X Electric Rubber-Lined Butterfly Valve Feature1. Superior zero-leakage performance:The full-lined body structure creates an interference fit between the disc and the seat. The elastic compensation of the rubber ensures bi-directional bubble-tight sealing in the closed position, meeting ANSI Class VI standards.2.Intelligent integrated electric drive:Equipped with an intelligent electronic actuator with a built-in servo system. It supports standard control signals, position feedback, overload protection, stall alarms, and fail-safe signal interruption logic.3.Excellent corrosion and wear resistance:Different rubber linings can be configured based on the medium to isolate the fluid from the metal body. It is highly resistant to weak acids, alkalis, salts, and fluids with minor particulates.4.Minimal flow resistance and high efficiency:The disc features a streamlined, ultra-thin design. When fully open, the flow path is nearly straight with an extremely low resistance coefficient, providing a large flow coefficient (Kv) and reducing pumping energy costs.5.Compact and lightweight design:The wafer connection design significantly shortens the face-to-face length. Its small size and light weight save installation space and reduce mechanical loads on the pipeline and its supports.6.Smooth operation and agile response:The actuator provides stable torque output. Combined with low-friction bearings, the disc responds rapidly and positions accurately even under high-frequency regulation conditions.7.Intrinsic safety and protection:Driven by electricity, eliminating the need for complex air supply systems. It can be configured with fail-in-place or backup power reset functions to ensure process safety during power failures.8.Modular design for easy maintenance:The simple structure has minimal wearing parts. Standardized actuator-to-body interfaces allow for online inspection or replacement of the actuator without removing the valve from the line.

OverviewThe D941W Electric Circular Louver Type Control Butterfly Valve is a valve designed to control the flow and on/off switching of air or dust-laden gas media through the synchronized rotation of multiple louver-type discs. The stem axis is located at the center of each individual disc. Utilizing a louver-type structural design, the multiple discs are linked via a connecting rod mechanism to achieve synchronized opening and closing. The valve features a flanged connection, meaning both ends of the valve body are equipped with connecting flanges that match the pipeline flange standards, allowing direct fastening to the pipeline flanges using bolts and nuts. The disc sealing pair typically employs a metal-to-metal hard seal structure, offering characteristics such as high-temperature resistance, wear resistance, and corrosion resistance. This valve is operated by an electric actuator that rotates the shaft 90°, enabling rapid shut-off and continuous regulation of the duct fluid. Accessories such as positioners can be optionally configured for remote automated control.D941W Louver Type Electric Ventilation Butterfly Valve Product DrawingFeatures1、Compact Structure, Strong Load-Bearing Capacity: Featuring a flanged connection structure, the valve body possesses high rigidity, enabling it to withstand significant pipeline stress. The multi-disc louver design results in a compact overall structure, offering a smaller footprint for the same flow area.2、Quick Opening/Closing, Excellent Synchronization: Employing a 90° rotary operation, the multiple louver blades are linked via a connecting rod mechanism, allowing for rapid and smooth opening and closing. The synchronized action of all blades ensures high regulation accuracy.3、High Flow Capacity, Low Pressure Loss: When the valve is fully open, the multiple louver blades align parallel to the flow direction of the medium, creating minimal obstruction. The louver design increases the flow area, making it particularly suitable for large-diameter, low-pressure differential gas media pipelines.4、Reliable Sealing Performance, High Temperature and Wear Resistance: Utilizing a metal-to-metal hard seal structure, the sealing pair consists of stainless steel or heat-resistant alloy materials. This design withstands thermal expansion and thermal shock from high-temperature gases, offering resistance to wear and erosion, ensuring a long service life.5、Easy Maintenance, Low Inspection and Repair Costs: The louver blades and shaft feature a detachable structure, facilitating on-site inspection and replacement. The connecting rod mechanism is designed for rational adjustment, simplifying commissioning and effectively reducing maintenance costs.6、Wide Applicability: The valve body can be made from materials such as carbon steel, stainless steel, or heat-resistant steel. This allows it to be suitable for demanding conditions involving high-temperature flue gas, dust-laden gas, and corrosive gases. It is widely used in ventilation, dust removal, and flue gas treatment systems across industries such as power, metallurgy, building materials, and chemical engineering.

The BY42 electric louver butterfly valve is an industrial automation control device widely used in metallurgy, chemicals, building materials, power plants, and environmental protection industries. The valve mainly consists of a body, louver blades, shafts, and an electric actuator. Driven by the electric actuator, multiple groups of louver blades rotate synchronously within a 90° range to precisely regulate or shut off the flow of air, flue gas, or dust-laden gas in the pipeline. Due to its multi-axis louver structure, the valve features low flow resistance, rapid opening and closing, short structural dimensions, and light weight, making it especially suitable for large-diameter, high-flow, and low-pressure-differential systems.Product Image of BY42 Electric Louver Butterfly Valve Feature1.Compact and lightweight design:The ultra-short face-to-face length significantly reduces the mechanical load on the pipeline compared to traditional control valves.2.Low flow resistance and high efficiency:The streamlined blade design ensures a near-straight flow path when fully open, resulting in minimal pressure drop.3.Low operating torque and smooth motion:The multi-axis linkage balanced structure offsets most of the fluid impact force.4.Temperature and corrosion resistance:Available in carbon steel, stainless steel, or wear-resistant steel to adapt to high-temperature flue gas or corrosive conditions.5.Intelligent actuation:Equipped with an intelligent actuator that supports 4-20mA signal regulation and real-time position feedback.6.Reliable sealing performance:Optional sealing strips provide effective shut-off in both ambient and high-temperature environments.7.Long service life:Core rotating parts utilize self-lubricating bearings to reduce mechanical wear, ensuring long maintenance cycles.8.High degree of customization:Available in rectangular or circular structures to meet diverse installation requirements of process piping.