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For demanding industrial and municipal applications requiring robust and reliable shut-off, the Hydraulically Actuated Centric Butterfly Valve represents a superior solution. These valves are engineered for precise control in high-pressure systems where automation is critical. The integration of a hydraulic actuator provides the substantial torque necessary for smooth operation against significant line pressures, ensuring tight sealing and dependable performance. A key variant, the Resilient Seated Hydraulic Butterfly Valve, offers enhanced bubble-tight sealing capabilities. Its elastomer seat ensures zero leakage, making it an ideal choice for water distribution, wastewater treatment, and various process industries where sealing integrity is paramount. The combination of a sturdy centric disc design with a powerful hydraulic actuation system results in a valve that delivers exceptional durability, ease of maintenance, and long-term operational cost savings.
The Hydraulic Operated Concentric Butterfly Valve is distinguished by its straightforward yet highly effective design. The disc rotates on a central axis within the valve body, providing a symmetrical flow path that minimizes pressure drop and turbulence. This design is particularly advantageous for applications involving slurries or fluids with suspended solids, as it reduces the risk of clogging and facilitates easier cleaning. The valve's body is typically constructed from ductile iron, cast steel, or stainless steel, offering excellent corrosion resistance and mechanical strength. Operation is achieved through a double-acting or spring-return hydraulic actuator, which can be configured for fail-safe open or closed positions, adding a critical layer of safety to pipeline systems. The Hydraulic Operated Concentric Butterfly Valve is designed for easy integration into SCADA and other automated control systems, allowing for remote operation and real-time monitoring of valve status.
Our Hydraulic Operated Concentric Butterfly Valves are manufactured to meet international standards, ensuring compatibility and reliability across global projects.
| Parameter | Specification | Standard / Options |
|---|---|---|
| Size Range | 3" to 48" (DN80 to DN1200) | Custom sizes available |
| Pressure Rating | PN10/16, Class 150/300 | ANSI B16.34, EN 593 |
| Body Material | Ductile Iron, Cast Steel, Stainless Steel | With epoxy or other coatings |
| Disc Material | Ductile Iron (epoxy coated), Stainless Steel (CF8/CF8M) | Aluminum Bronze optional |
| Stem Material | Stainless Steel AISI 416 / 17-4PH | Full through-stem design |
| Seat Material | EPDM (Standard), NBR, Viton® (FKM) | Food-grade EPDM available |
| Operating Temperature | -10°C to +120°C (EPDM) / Up to +180°C (Special Seats) | Dependent on seat material |
| Actuator Type | Hydraulic Double-Acting / Spring Return | Torque outputs from 100 Nm to 50,000 Nm |
| Hydraulic Supply | Standard: 40-70 bar (580-1015 psi) | Custom pressure ranges available |
| End Connection | Wafer, Lug, Double Flange | ANSI, DIN, BS, JIS standards |
| Leakage Standard | Zero Leakage (Resilient Seat) | Meets API 598, EN 12266-1 A |
| Operation | 90° Rotary, Automated with Hydraulic Actuator | Manual handwheel or gearbox optional |
