MANUAL OFFSET DISC BUTTERFLY VALVE DOUBLE FLANGED END
“aline” Make Manual Offset Disc Butterfly Valve – Double Flanged End is a high-performance quarter-turn valve designed for dependable flow isolation and throttling in demanding industrial applications. Featuring an offset disc design, the valve minimizes friction between the disc and seat during operation, ensuring reduced seat wear, lower operating torque, superior sealing performance, and extended service life.
The double flanged body construction provides exceptional strength, secure pipeline installation, and excellent alignment for large-diameter pipelines. Operated through a manual lever or gear-operated mechanism (depending on valve size), the valve offers smooth 90° operation with precise flow control and minimal maintenance requirements.
Manufactured using premium-quality materials such as Cast Iron, Ductile Iron, Carbon Steel, Stainless Steel, Duplex Stainless Steel, and high-performance sealing materials, the ALINE Offset Disc Butterfly Valve is suitable for handling water, steam, gases, chemicals, oil, hydrocarbons, and various industrial process media under high-pressure and high-temperature operating conditions.
This valve is widely used in Water Treatment Plants, Chemical Industries, Petrochemical Plants, Oil & Gas, Power Generation, Marine Applications, HVAC Systems, Steel Plants, Cement Industries, Paper Mills, Pharmaceutical Industries, Food Processing Plants, and General Industrial Process Pipelines.
Designed for reliable sealing, long service life, and smooth operation, ALINE Double Flanged Offset Disc Butterfly Valves deliver outstanding performance even in the most demanding industrial environments.
Product Features:
- Offset Disc Butterfly Valve Design
- Double Flanged End Construction
- Manual Lever / Gear Operated
- Quarter Turn (90°) Operation
- Bubble Tight Shut-Off
- Reduced Seat Wear
- Low Operating Torque
- Heavy Duty Body Construction
- Excellent Corrosion Resistance
- Bi-Directional Flow Capability
- Long Service Life
- Easy Installation & Maintenance
Technical Specifications:
| Parameter | Details |
|---|---|
| Product Type | Manual Butterfly Valve |
| Design | Offset Disc |
| Body Type | Double Flanged End |
| Operation | Manual Lever / Gear Operated |
| Size Range | DN50 to DN800 (2″ to 32″) |
| Body Material | CI / DI / WCB / SS304 / SS316 |
| Disc Material | SS304, SS316 |
| Seat Material | EPDM, NBR, Viton, PTFE, RPTFE, Metal Seat |
| Stem Material | SS410, SS420, SS304, SS316 |
| Pressure Rating | PN10, PN16, ANSI 150#, ANSI 300# |
| Temperature Range | -20°C to +425°C (Depending on Seat Material) |
| Mounting Standard | ISO 5211 (Optional for Automation) |
Standard Features:
- Offset Disc Technology
- Bubble Tight Sealing
- Low Friction Operation
- Reduced Seat Wear
- Double Flanged Heavy Duty Design
- Corrosion Resistant Construction
- Smooth Quarter Turn Operation
- Low Maintenance
- Bi-Directional Sealing
- Long Mechanical Life
Optional Features:
- Pneumatic Actuator Operated
- Electric Actuator Operated
- Manual Worm Gear Operator
- Fire Safe Design
- Metal Seated Construction
- Extended Stem Design
- High Temperature Version
- Special Epoxy Coating
- Marine Grade Coating
- Customized Materials & Standards Available
Applications:
- Water Supply Systems
- Water & Wastewater Treatment Plants
- Chemical Processing Industries
- Petrochemical Plants
- Oil & Gas Industries
- Steam Service
- Power Generation Plants
- Marine & Offshore Applications
- HVAC Systems
- Steel & Metal Industries
- Cement Plants
- Paper & Pulp Industries
- Pharmaceutical Industries
- Food & Beverage Processing
- General Industrial Process Lines