Hydraulic Actuated Concentric Butterfly Valve
Description
TECHNICAL DATA SHEET
Hydraulic Actuated Concentric Butterfly Valve
Stainless Steel Body · Rubber Seated
1. PRODUCT DESCRIPTION
The Hydraulic Actuated Concentric Butterfly Valve is a resilient-seated quarter-turn rotary valve designed for precise flow control and positive shut-off in demanding industrial and municipal applications. Featuring a concentric disc design with a stainless steel body and elastomer seat, this valve provides bubble-tight sealing, low pressure drop, and reliable performance across a wide range of media including water, oil, gas, and corrosive fluids.
The hydraulic actuator delivers substantial torque for smooth operation against significant line pressures, making this valve ideal for high-pressure automated systems requiring remote operation and SCADA integration.
2. DESIGN FEATURES
| Feature | Description |
|---|---|
| Valve Type | Concentric (centric) disc, resilient seated butterfly valve |
| Connection Type | Wafer-type / flangeless design for installation between flanges |
| Flow Direction | Bi-directional |
| Disc Design | Concentric disc rotates on central axis, minimizing pressure drop and turbulence |
| Sealing | Elastomer seat provides bubble-tight shut-off (zero leakage) and compensates for minor disc misalignment |
| Stem Design | Anti-blowout square-driven stem with lower thrust bearing to reduce friction and prevent galling |
| Actuator Mounting | ISO 5211 compliant top flange for direct actuator mounting |
| Maintenance | Compact, lightweight design with reduced maintenance requirements |
3. TECHNICAL SPECIFICATIONS
3.1 General Parameters
| Parameter | Specification |
|---|---|
| Size Range | DN40 – DN600 (1.5″ – 24″) |
| Pressure Ratings | PN10 / PN16 / Class 150 |
| Design Standards | EN 593, ISO 5752, API 609, ASME B16.34 |
| Face-to-Face Dimensions | ISO 5752 Series 20 / EN 558 Series 20 / API 609 Table 1 |
| Flange Accommodation | DIN PN10/PN16, ASME Class 150, JIS 10K, BS4504 PN10 |
| Top Flange | ISO 5211 |
| Flow Velocity (Limit) | Up to 3 m/s (fully-open, continuous operation) |
3.2 Operating Conditions
| Parameter | Specification |
|---|---|
| Maximum Working Pressure | 1.6 MPa (16 bar) |
| Hydraulic Supply Pressure | 40 – 70 bar (580 – 1015 psi) standard |
| Operating Temperature (Valve) | -20°C to +120°C (EPDM seat) |
| Operating Temperature (Actuator) | -20°C to +80°C |
| Allowable Continuous Use Temp. | -10°C to +100°C (EPDM) |
| Actuator Torque Output | 100 Nm to 50,000 Nm (customizable) |
4. MATERIAL SPECIFICATION
| Component | Material | Equivalent Standard |
|---|---|---|
| Body | Stainless Steel CF8 / CF8M (A351) | 304 / 316 Stainless Steel |
| Disc | Stainless Steel CF8 / CF8M | 304 / 316 Stainless Steel |
| Stem / Shaft | Stainless Steel AISI 420 / 416 / 17-4PH | SUS420J2 |
| Seat (Liner) | EPDM (Standard) | |
| Seat (Optional) | NBR (Nitrile), Viton® (FKM) | — |
| O-Ring | NBR rubber | — |
| Bearing | PTFE-coated steel / POM | — |
5. HYDRAULIC ACTUATOR SPECIFICATIONS
| Parameter | Specification |
|---|---|
| Actuator Type | Double-acting or Spring-return (fail-safe open/closed) |
| Hydraulic Fluid | Corrosion-resistant hydraulic oil (medium-viscosity anti-wear) |
| Max. Operating Pressure (Actuator) | 16 MPa |
| Operating Temperature (Actuator) | -20°C to +80°C |
| Control Options | Manual override, solenoid valve, SCADA integration |
| Mounting Interface | ISO 5211 |
6. PERFORMANCE & TESTING
| Test | Requirement |
|---|---|
| Body Shell Test | 1.5 × rated pressure (hydraulic) |
| Seat Leak Test | 1.1 × rated pressure (pneumatic) |
| Allowable Seat Leakage | Rate A — Tight shut-off (bubble-tight) per JIS B 2003 |
| Bi-directional Sealing | 100% bi-directional tight shut-off |
| Fire-safe Design | Available upon request |
7. DIMENSIONS (Typical – Wafer Type)
Dimensions are for reference. Consult factory for specific drawings.
| DN | Face-to-Face (mm) | Approx. Weight (kg) |
|---|---|---|
| 40 | 33 | — |
| 50 | 43 | — |
| 65 | 46 | — |
| 80 | 46 | — |
| 100 | 52 | — |
| 125 | 56 | — |
| 150 | 56 | — |
| 200 | 60 | — |
| 250 | 68 | — |
| 300 | 78 | — |
Face-to-face dimensions per ISO 5752 Series 20 / EN 558 Series 20.
8. APPLICATIONS
-
Water distribution and wastewater treatment
-
Industrial process control
-
Petrochemical and power generation systems
-
HVAC and building services
-
Corrosive and non-corrosive liquid media
-
Slurries and fluids with suspended solids
9. OPTIONS & CUSTOMIZATIONS
| Option | Details |
|---|---|
| Seat Materials | NBR, Viton® (FKM), PTFE |
| Body Materials | Ductile iron, cast steel, aluminum bronze |
| Actuator Configuration | Spring-return (fail-safe) or double-acting |
| Coating | Epoxy resin powder coating for enhanced corrosion resistance |
| Sanitary Design | Available for food-grade / hygienic applications |
| Custom Pressure Ranges | Available upon request |
10. APPLICABLE STANDARDS
| Standard | Description |
|---|---|
| EN 593 | Industrial valves — Butterfly valves |
| ISO 5752 | Face-to-face dimensions for butterfly valves |
| API 609 | Butterfly valves: wafer, lug, and double-flanged |
| ASME B16.34 | Valves — Flanged, threaded, and welding end |
| ISO 5211 | Actuator mounting interfaces |
| API 598 | Valve inspection and testing |
This technical data sheet is for general reference only. Specifications are subject to change without prior notice. For specific project requirements, please consult the manufacturer.
