Electric Flanged Butterfly Valve
Double Flanged · DN50–DN3000 · PN10/PN16 · Electric Actuator
Reguvale's electric flanged butterfly valve pairs a rugged double-flanged butterfly valve with a compact, reliable electric actuator for remote on-off or modulating flow control. The body is cast in ductile iron or carbon steel with an epoxy coating, and the concentric disc is lined with EPDM, NBR or PTFE for bubble-tight shut-off.
The electric actuator is available in 24V DC, 220V AC and 380V AC supply versions, with on-off or 4-20mA modulating control. Limit switches, local position indication and a manual override handwheel are available for critical installations. The photos show a large-diameter unit (DN1200+) being assembled in our Tianjin workshop, demonstrating the heavy-duty actuator mounting and flange drilling.
These valves are widely used in water treatment plants, pumping stations, HVAC systems, irrigation networks, power plants and industrial process lines where remote operation and reliable isolation are required. Every valve is hydrostatically tested and can be supplied with material and test certificates.
Product Video
Key Features
Remote Electric Operation
On-off or 4-20mA modulating electric actuators eliminate the need for manual operators or compressed air on remote valves.
Wide Size Range
DN50 to DN3000 covers everything from small process lines to large water transmission and hydropower projects.
Double-Flanged Construction
Integral flanges on both ends provide robust alignment and secure bolting between pipe flanges.
Flexible Power & Control
Actuators available in 24V DC, 220V AC and 380V AC with limit switches, position feedback and manual override.
Resilient Seat Options
EPDM, NBR, Viton (FKM) or PTFE lined discs suit water, oil, gas, chemicals and high-temperature media.
Factory Tested
Shell and seat pressure tests performed at our Tianjin factory; MTC and test certificates available.
Technical Specifications
| Parameter | Specification |
|---|---|
| Body Material | Ductile Iron GGG50 / Carbon Steel WCB / Stainless Steel CF8 (Epoxy Coated) |
| Disc Material | SS304 / SS316 / Ductile Iron Nickel-Al-Bronze Plated |
| Seat Material | EPDM / NBR / Viton(FKM) / PTFE |
| Design Type | Concentric (Rubber-Lined / PTFE-Lined) |
| Size Range | DN50 – DN3000 (2" – 120") |
| Pressure Rating | PN10 / PN16 (ANSI 150 lb available on request) |
| End Connection | Double Flanged (ISO 7005-2 / EN 1092-2 / ASME B16.5) |
| Face-to-Face | ISO 5752 / EN 558 / API 609 |
| Actuator | Electric Quarter-Turn / Multi-Turn (On-Off or Modulating 4-20mA) |
| Actuator Supply | 24V DC / 220V AC / 380V AC (50/60Hz) |
| Control Signal | On-Off, 4-20mA, 0-10V, RS485 (Modbus optional) |
| Temperature | EPDM: −20→+120°C | NBR: −20→+82°C | Viton: −15→+200°C | PTFE: −200→+200°C |
| Leakage Class | Class VI (Bubble-Tight) for rubber-lined |
| Standards | ISO 5752 / BS 5155 / MSS SP-67 / API 609 |
| Certification | ISO 9001:2015, SGS Material Test Certificate available |
Frequently Asked Questions
What actuator options are available for electric flanged butterfly valves?
Reguvale supplies electric actuators in 24V DC, 220V AC and 380V AC. On-off actuators rotate the valve 90° between fully open and fully closed. Modulating actuators accept 4-20mA or 0-10V signals and position the disc proportionally. Limit switches, local position indicators and manual override handwheels are optional.
Common questions about electric flanged butterfly valves answered by our engineering team.
What sizes and pressure ratings do electric flanged butterfly valves cover?
Our electric flanged butterfly valves cover DN50 to DN3000 with PN10 and PN16 pressure ratings. Smaller sizes use compact quarter-turn electric actuators, while large-diameter units (DN1200 and above) are fitted with heavy-duty multi-turn or part-turn electric actuators with manual override.
Can electric butterfly valves be used for waterworks and industrial applications?
Yes. The electric actuator makes these valves ideal for remote operation in water treatment plants, pumping stations, HVAC systems, power plants, irrigation networks and industrial process lines. The double-flanged body provides stable alignment and easy installation between pipe flanges.
Can you provide test certificates and third-party inspection?
Yes. Every valve is pressure tested at the factory. We can provide material test certificates (MTC), hydrostatic test reports, shell and seat test certificates, and third-party inspection by SGS or another appointed agency on request.
Applications & Use Cases
Water Treatment & Distribution
Remote isolation and flow control in treatment plants, pumping stations and distribution networks.
HVAC & Building Services
Chilled water, heating water and cooling tower circuits with building automation system integration.
Irrigation & Reservoirs
Large-bore irrigation mains, reservoir outlets and canal control gates.
Industrial Process Lines
Chemical, power, steel and paper plants where remote on-off or modulating control is required.
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Helpful guides to help you specify and maintain butterfly valves.