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.

OverviewD942X Electric Double Eccentric Butterfly Valve is a pipeline control device featuring a double eccentric design, where the valve stem axis is offset from both the disc sealing surface centerline and the pipeline centerline, creating a unique double eccentric trajectory that allows the disc to quickly disengage from the seat sealing surface upon opening, significantly reducing friction and wear between the sealing pair, lowering operating torque, and extending valve service life. The valve adopts a flanged connection, clamped between two pipeline flanges using stud bolts, offering a compact structure and easy installation. The disc seal ring is made of elastic materials such as nitrile rubber (NBR) or ethylene propylene rubber (EPDM) to form a soft sealing pair. Driven by an electric actuator that rotates the stem 90°, the valve achieves precise flow regulation and rapid opening/closing. It is widely used in water supply and drainage and corrosive media piping systems in industries such as water treatment, HVAC, and chemical.Product Image of D942X Electric Double Eccentric Butterfly Valve Features1.Double eccentric structure, low wear and long service life: The double eccentric design, with the valve stem axis offset from both the disc sealing surface centerline and the pipeline centerline, allows the disc to immediately disengage from the seat sealing surface upon opening, eliminating unnecessary squeezing and friction, significantly reducing operating torque, and greatly extending valve service life.2.Quick opening/closing, low operating torque: The disc rotates 90° to achieve full open or full closed position, enabling rapid opening/closing control with an electric actuator. Due to the torque reduction effect of the double eccentric structure, the required operating torque is low, allowing the use of a lower-power actuator and reducing associated costs.3.Low fluid resistance: The disc features a streamlined design. When the valve is fully open, the disc is parallel to the medium flow direction, creating a flow passage nearly like a straight pipe, allowing smooth medium flow with extremely low pressure loss and significant energy savings.4.Excellent sealing performance: Adopting a soft sealing pair structure, the disc seal ring is made of high-quality elastic materials such as nitrile rubber (NBR), ethylene propylene rubber (EPDM), or fluoro rubber (FKM), forming a reliable sealing pair with the stainless steel or alloy steel seat, achieving bidirectional zero-leakage sealing and meeting the tightness requirements of medium-to-low pressure conditions.5.Compact structure, easy installation and maintenance: The flanged connection design features short structural length, small volume, and light weight, making it particularly suitable for installation in space-constrained locations. The valve components are highly standardized, making maintenance operations such as disassembly and seal replacement simple and convenient.6.Wide application range: The valve body can be made of various materials such as ductile iron and stainless steel, and the seal ring material can be selected from different rubber formulations according to medium characteristics. Combined with the remote automatic control function of the electric actuator, it is widely used in piping systems for liquids, gases, and powder media in industries such as water treatment, HVAC, water supply and drainage, light industry, and chemical.

OverviewD943H Stainless Steel Electric Metal Hard Sealing Butterfly Valve is a valve that adopts a valve body made of cast steel, stainless steel, or duplex stainless steel with a metal hard sealing structure, using an electric actuator to drive the disc in a 90° rotary motion to achieve precise opening/closing or regulation of pipeline media. The valve utilizes a triple-eccentric or multi-eccentric design principle, allowing the disc sealing surface to quickly disengage from and engage with the seat sealing surface during opening and closing, effectively reducing friction and wear. Its transmission mechanism outputs rotational torque through the electric actuator, directly driving the stem to rotate the disc precisely within the valve body. Both the seat and disc sealing pair are made of high-hardness metal materials such as cast steel, stainless steel, and duplex stainless steel, forming a reliable metal-to-metal seal through precision machining. The D943H electric metal hard sealing butterfly valve features high temperature resistance, high pressure resistance, corrosion resistance, and long service life, making it particularly suitable for severe service conditions in industries such as chemical, metallurgical, power, pharmaceutical, and food.D943H Stainless Steel Electric Hard-seal Butterfly Valve – Product Drawing Features1、High-strength structural materials: The main components such as the valve body, stem, and disc are made of high-performance materials including cast steel, stainless steel, and duplex stainless steel, which can be flexibly selected according to operating conditions. They offer excellent pressure resistance, corrosion resistance, and stress corrosion cracking resistance, making them suitable for severe service conditions in industries such as petroleum, chemical, and marine engineering.2、Metal hard sealing design: The sealing surfaces are processed using stainless steel with cemented carbide hardfacing or spray coating, forming a high-hardness metal sealing surface that is wear-resistant and erosion-resistant, with a service life far exceeding that of soft-sealing 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 fluoroplastic lining for corrosion protection: The valve body cavity and disc surface are lined with polytetrafluoroethylene (PTFE), PFA, FEP, or other fluoroplastics using integral molding or sintering processes, forming a complete corrosion-resistant barrier that can withstand most highly corrosive media with excellent chemical stability.2.Electric intelligent control: Equipped with an integrated or remote electric actuator supporting 4-20mA signal input or on/off control, enabling remote automated operation, proportional regulation, and program control, suitable for automated production lines.3.Zero leakage sealing design: The disc features a FKM (fluoro rubber) coated or fully lined fluoroplastic structure, forming an interference fit with the lined seat, providing excellent sealing performance and achieving bidirectional zero leakage (sealing rating up to Class VI), effectively preventing external leakage of the medium.4.Lightweight compact structure: Adopting wafer-type connection, with short structural length, light weight, and small installation space requirements, facilitating layout in dense piping systems; the electric actuator is compact with high overall integration.5.Low torque and wear resistance: The fluoroplastic lining has a low friction coefficient, resulting in low disc opening/closing resistance; the electric actuator is equipped with torque protection to prevent overload damage and extend valve service life.6.Temperature and pressure adaptability: The fluoroplastic lining can accommodate a temperature range of -30°C to 150°C, with special modified fluoroplastics capable of withstanding higher temperatures; the valve design pressure can reach PN25, meeting various operating condition requirements.7.Simple and safe maintenance: Simple structure with easy disassembly; the fluoroplastic lining has good anti-adhesion properties, preventing media accumulation; the electric actuator has a high protection rating (typically IP67), suitable for humid and corrosive environments.

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.