Centric Double Flange Butterfly Valve
Products & Services
Centric Double Flange Butterfly Valve
High Performance Flow Control with Superior Sealing
The Manual (Hand Lever / Gear), Pneumatic & Electric Actuated Double Eccentric Butterfly Valve is engineered for reliable shut-off and efficient flow regulation in high-pressure and high-temperature industrial applications. Its double eccentric (double offset) disc design minimizes seat contact during operation, significantly reducing wear, lowering operating torque, and extending valve service life.
Manufactured using premium-grade ductile iron, carbon steel, and stainless steel materials, this valve delivers excellent corrosion resistance, dependable sealing performance, and smooth quarter-turn operation under demanding operating conditions. Available in manual, pneumatic, and electric actuation options, it is ideal for both conventional isolation duties and automated process control systems.
Key Features
✔ Double Eccentric (Double Offset) Disc Design
✔ Reduced Seat Wear & Low Operating Torque
✔ Bubble Tight Leak-Proof Sealing
✔ High Pressure & High Temperature Capability
✔ Corrosion Resistant Construction
✔ Full Flow Design for Minimum Pressure Loss
✔ Smooth Quarter Turn Operation
✔ Long Service Life with Low Maintenance
✔ ISO 5211 Mounting for Automation
✔ Available in Manual, Pneumatic & Electric Actuation
Applications
- Water Treatment Plants
- Oil & Gas Industries
- Chemical Processing Industries
- Steam Distribution Systems
- Petrochemical Industries
- Power Generation Plants
- Marine Applications
- HVAC Systems
- Industrial Utility Services
- General Process Industries
Design Features – Manual (Hand Lever / Gear), Pneumatic & Electric Actuated Double Eccentric Butterfly Valve
| Specification | Details |
|---|---|
| Model No. | NXDEBV / NXDEBV-A |
| Valve Type | Double Eccentric Butterfly Valve |
| Body Material (MOC) | Ductile Iron / WCB / CF8 / CF8M / SS304 / SS316 |
| Size Range | 50 mm to 1200 mm (2″ to 48″) |
| End Connection | Wafer / Lug / Flanged |
| Pressure Class | PN10 / PN16 / ANSI 150# / ANSI 300# |
| Operating Temperature | -20°C to +425°C |
| Disc Design | Double Eccentric (Double Offset) Disc |
| Seat Material | PTFE / Metal Seated / EPDM / Viton |
| Valve Bore | Full Flow |
| Operation | Manual (Hand Lever / Gear), Pneumatic Actuated & Electric Actuated |
| Testing Standard | API 598 |
| Actuator Mounting | ISO 5211 Direct Mounting Pad |
| Working Media | Water, Oil, Gas, Steam & Chemicals |
| Automation Option | Pneumatic & Electric Actuator Compatible |
Technical Specifications – Manual (Hand Lever / Gear), Pneumatic & Electric Actuated Double Eccentric Butterfly Valve
| No. | Description | Material |
|---|---|---|
| 1 | Body | Ductile Iron / WCB / CF8 / CF8M |
| 2 | Disc | SS304 / SS316 / WCB |
| 3 | Seat | PTFE / Metal Seated / EPDM / Viton |
| 4 | Stem | SS410 / SS304 / SS316 |
| 5 | Stem Bush | PTFE / Bronze |
| 6 | O-Ring / Stem Seal | NBR / EPDM / Viton |
| 7 | Thrust Washer | PTFE |
| 8 | Operating System | Manual Hand Lever / Gear Operator / Pneumatic Actuator / Electric Actuator |
| 9 | Hand Lever / Gearbox (Manual Model) | Cast Iron / Ductile Iron / Powder Coated Steel |
| 10 | Stop Plate / Locking Device | Carbon Steel / Stainless Steel |
| 11 | End Connection | Wafer / Lug / Flanged |
| 12 | Fasteners | SS304 / High Tensile Alloy Steel |