MANUAL CENTRIC DISC BUTTERFLY VALVE DOUBLE FLANGED TYPE
“aline” Make Manual Centric Disc Butterfly Valve – Double Flanged Type is a robust and reliable quarter-turn valve designed for efficient flow isolation and regulation in medium to large-sized pipeline systems. Featuring a centric disc design with a resilient seat, this valve ensures bubble-tight shut-off, low operating torque, and dependable long-term performance across a wide range of industrial applications.
The double flanged body construction provides secure pipeline installation, excellent mechanical strength, and superior stability under high-pressure operating conditions. Operated through a manual worm gear operator with handwheel, the valve enables smooth, accurate, and effortless operation even on large-diameter pipelines where higher torque is required.
Manufactured using premium-grade materials such as Cast Iron, Ductile Iron, Carbon Steel, Stainless Steel, Aluminium Bronze, and resilient seat materials, the ALINE Double Flanged Butterfly Valve offers outstanding corrosion resistance, durability, and extended service life in demanding industrial environments.
This valve is widely used in Water Supply Systems, Wastewater Treatment Plants, Chemical Industries, Power Plants, HVAC Systems, Fire Protection Networks, Oil & Gas, Marine Applications, Steel Plants, Paper Mills, Cement Industries, Irrigation Systems, and General Industrial Process Lines.
Designed for reliable sealing, low maintenance, and long operational life, ALINE Double Flanged Butterfly Valves deliver dependable performance in both on-off and throttling applications.
Product Features:
- Centric Disc Butterfly Valve Design
- Double Flanged Construction
- Manual Worm Gear Operated
- Quarter Turn (90°) Operation
- Bubble Tight Shut-Off
- Low Operating Torque
- Heavy Duty Gear Box with Handwheel
- Bi-Directional Flow Capability
- Strong & Rigid Body Construction
- Easy Installation & Maintenance
- Long Service Life
- Suitable for Large Diameter Pipelines
Technical Specifications:
| Parameter | Details |
|---|---|
| Product Type | Manual Butterfly Valve |
| Design | Centric Disc |
| Body Type | Double Flanged |
| Operation | Worm Gear Operated |
| Size Range | DN50 to DN800 (2″ to 32″) |
| Body Material | CI / DI / WCB / CF8 / CF8M |
| Disc Material | CI / DI / SS304 / SS316 |
| Seat Material | EPDM, NBR, Viton, PTFE |
| Stem Material | SS410, SS420, SS304, SS316 |
| Pressure Rating | PN10, PN16, ANSI 150# |
| Temperature Range | -20°C to +180°C (Depending on Seat Material) |
| Mounting Standard | ISO 5211 (Optional for Automation) |
Standard Features:
- Bubble Tight Sealing
- Heavy Duty Worm Gear Operator
- Smooth & Precise Valve Operation
- Low Operating Torque
- Corrosion Resistant Construction
- Bi-Directional Sealing
- Rugged Double Flanged Design
- Easy Maintenance
- Long Mechanical Life
- Automation Ready (ISO 5211 Optional)
Optional Features:
- Pneumatic Actuator Operated
- Electric Actuator Operated
- Chain Wheel Operator
- Extended Stem Design
- PTFE Seat for Chemical Applications
- Fire Safe Design (Optional)
- Special Epoxy Coating
- Marine Grade Coating
- Customized Face-to-Face Dimensions
Applications:
- Water Distribution Systems
- Water & Wastewater Treatment Plants
- Chemical Processing Industries
- Oil & Gas Industries
- Power Generation Plants
- HVAC Systems
- Fire Fighting Networks
- Marine & Offshore Applications
- Steel & Metal Industries
- Cement Plants
- Paper & Pulp Industries
- Irrigation Systems
- Mining Industries
- General Industrial Utilities