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Hydraulically Actuated Centric Butterfly Valve

Our Hydraulic Operated Concentric Butterfly Valve represents a significant advancement in fluid control technology, engineered for demanding industrial applications where reliable, automated on/off and modulating service is critical. For systems requiring a tight, durable seal in less abrasive services, our Resilient Seated Hydraulic Butterfly Valve offers an excellent, cost-effective solution. The core design principle of both valves centers on a concentric disc and stem arrangement, actuated by a powerful, compact hydraulic actuator. This combination delivers exceptional torque output and precise positional control, making these valves ideal for integration into sophisticated SCADA and process automation systems. The robust construction ensures long-term performance in managing water, air, and other compatible media across industries like water treatment, power generation, chemical processing, and HVAC.
The Hydraulically Actuated Centric Butterfly Valve is defined by its precision engineering and robust material specifications. It is designed for zero-leakage shut-off and smooth, reliable operation from full open to full closed positions. The key to its performance lies in the synergy between the valve body and the hydraulic actuator, which provides fail-safe operation in either open or closed positions upon loss of hydraulic signal. Below are the detailed technical parameters and material specifications.

Key Design Features & Operational Parameters

Standard Material Specifications

Component Standard Material Alternative Materials Available
Body & Disc Ductile Iron (EN-GJS-500-7) with Epoxy Coating Carbon Steel (WCB), Stainless Steel (CF8/CF8M), Aluminum Bronze
Stem Stainless Steel (17-4PH / 630) 316 Stainless Steel, Monel
Seat EPDM (Standard for water) NBR, Viton (FKM), PTFE, HNBR for specific media
Actuator Housing Hard-coated Aluminum or Ductile Iron Stainless Steel for corrosive environments
Connections Flanged (RF), PN16/ANSI 150 Wafer, Lugged, ANSI 300, PN25/PN40

Hydraulic Actuator Specifications

Feature Specification
Actuator Type Rack-and-pinion, double-acting or spring-return
Operating Pressure Standard: 40-120 Bar (580-1740 psi)
Control Signal Hydraulic pilot signal (e.g., 3-15 Bar) or direct solenoid valve control
Fail-Safe Mode Spring-return to open or closed position (optional)
Position Feedback Optional potentiometer or limit switches for open/closed indication
Mounting ISO 5211 direct mounting pad
Protection Class IP67 / NEMA 4X standard, higher ratings available

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