The electric wafer butterfly valve is an industrial valve with a wafer-type connection structure, consisting of a valve body, butterfly plate, sealing components, and an electric actuator. It receives signals from the control system to drive the butterfly plate to rotate 90°, achieving flow regulation or shut-off of the pipeline medium. It is suitable for industrial pipeline systems with a medium temperature ≤300℃ and a nominal pressure of 0.1 MPa.
This device adopts a center-line butterfly plate welded steel plate structure design, featuring compact structure, light weight, and low flow resistance, and supports bidirectional sealing. Its applications cover production systems in industries such as building materials, metallurgy, mining, and power, playing a vital role in flue gas treatment, ventilation engineering, and dust-laden gas control.
GNEE Group specializes in the production of valves. Please contact us to obtain the drawings.
electric wafer butterfly valve specification
Maximum Working Pressure: 16 Bar
Maximum Working Temperature: -20°C to +200°C
Body: Carbon Steel A216 WCB
Disc: Stainless Steel CF8M + PTFE (PFA)
Seat: PTFE
Elastic Spacer: Silicone Rubber
Bushing: Stainless Steel + PTFE
Gland: Stainless Steel 304
Stem: Stainless Steel 410
Belleville Spring: Stainless Steel 304
V-Ring: PTFE
Hexagonal Bolt: Stainless Steel 304
Electric Wafer Butterfly Valve Structural Features
Clamp-on Connection: The valve is directly clamped between the pipe flanges at both ends, eliminating the need for additional flange gaskets. This improves installation efficiency by 40% compared to flanged valves. Its compact structure makes it suitable for applications with short pipe spacing or limited space (such as building pipe shafts and ship cabins).
Nominal Diameter: Covers DN40-DN1200; Maximum Working Pressure: 1.6MPa (some hard-seal models can reach 4.0MPa).
Electric Actuator:
Drive Method: Supports multiple power inputs including AC220V and DC24V. The butterfly plate is driven by a motor, with an adjustable action time of 5-60 seconds.
Control Accuracy: The intelligent actuator is equipped with 4-20mA signal input/output, enabling proportional adjustment and achieving a control accuracy of ±1%, meeting the flow regulation needs of industries such as fine chemicals and pharmaceuticals.
Additional Functions: Optional manual operation mechanism, overheat protection, overload protection, and position feedback device. Full-stroke self-locking is supported to ensure operational safety.
Butterfly Plate and Sealing Structure
Soft Seal Type: Uses nitrile rubber, fluororubber, or PTFE sealing rings, achieving an ANSI Class VI sealing rating. Suitable for water, air, and other media at normal temperatures (-20℃~200℃), with a leakage rate ≤0.1%.
Hard Seal Type: The butterfly plate sealing surface is overlaid with cobalt-based hard alloy, and the valve seat is made of stainless steel or hard alloy, offering wear resistance and high-temperature resistance (≤650℃). Suitable for steam, oil, and mildly corrosive fluids.
Triple Eccentric Design: Some models (such as D973H) employ a three-dimensional eccentric structure, achieving frictionless opening and closing between the butterfly plate and valve seat, with a lifespan exceeding 100,000 cycles.
Electric Wafer Butterfly Valve Performance Advantages
Low Fluid Resistance
The butterfly plate thickness is only 1/10 of the pipe diameter. When fully open, the flow resistance coefficient (ζ) is ≤0.3, 97% lower than a gate valve, significantly reducing pumping energy consumption, especially suitable for large-diameter pipelines.
Rapid Opening and Closing
Opening and closing can be completed with a 90° rotation, with an action time of ≤0.5 seconds, meeting the rapid response requirements of fire protection systems, emergency shut-off scenarios, etc.
Corrosion and High Temperature Resistance
Valve body materials include 316L stainless steel, Hastelloy, or F46-lined material, adaptable to strong acid, strong alkali, and chloride ion corrosive environments; hard-seal models have a maximum temperature resistance of 650℃, meeting the control requirements of main steam pipelines in thermal power plants.
Energy Saving and Long Lifespan
Electric drive consumes energy only during opening and closing, reducing operating costs by 60% compared to electric ball valves; modular design allows for quick replacement of vulnerable parts such as sealing rings and butterfly plates, with a lifespan exceeding 100,000 cycles.
Applications of Electric Wafer Butterfly Valve
Municipal and Building Applications
Controlling the inlet and outlet water flow in waterworks and sewage treatment plants, resistant to chloride ion corrosion, with a sealing performance meeting IP68 standards; regulating the hot and cold water circulation flow in air conditioning systems, with temperature difference control accuracy of ±0.5℃.
Industrial Process Control
Power Industry: Boiler feedwater system flow regulation to prevent water hammer; rapid shut-off of circulating water flow to prevent pump reversal.
Chemical Industry: Control of flue gas flow in catalytic cracking unit regenerator pipelines, resistant to 650℃ high temperature and SO₂ corrosion.
Metallurgical Industry: Blast furnace gas pipeline flow regulation, resistant to 1.6MPa pressure and dust abrasion.
Light Industry and Food Industry
Transporting clean media such as beverages and dairy products; EPDM or PTFE valve seats are non-contaminated and meet FDA certification requirements; regulating pulp flow in paper mills, resistant to weakly corrosive media.
electric wafer butterfly valve factory
GNEE Group owns hundreds of valve production and testing equipment, and provides customized valve services-send us your drawings, and we'll tailor-make them for you.