Ductile Iron Wafer Type Soft Seal Butterfly Valve 40-250mm DN 1.6MPa for Water Pipeline Systems
Professional-grade center-line butterfly valve designed for water pipeline applications with excellent sealing performance and durability.
This center-line butterfly valve features a concentric design where the valve stem axis, butterfly plate center, and body center align perfectly. The simple yet robust construction ensures reliable performance in water pipeline systems with minimal flow resistance and straight flow characteristics.
| Parameter | Specification |
|---|---|
| Nominal Diameter (DN) | 40-250 mm |
| Nominal Pressure (PN) | 1.0-1.6 MPa |
| Strength Test Pressure | 1.5-2.4 MPa (water) |
| Seal Test Pressure | 1.1-1.76 MPa (water) |
| Working Temperature | ≤80°C |
| Valve Body Material | QT450 Ductile Iron |
| Disc Material | QT450 Ductile Iron |
| Seat Material | EPDM Rubber |
| Axle Material | 2Cr13 Stainless Steel |
| Connection Type | Wafer Type |
| Suitable Medium | Water and Oil |
- Compact and lightweight design for easy installation and maintenance
- Linear flow characteristics with excellent regulating performance
- Simple 90-degree rotation for quick opening and closing
- Pinless connection between valve plate and rod eliminates internal leakage points
- Ball-shaped valve plate periphery enhances sealing performance and extends service life
- Zero leakage performance after 50,000 pressure cycles
- Replaceable sealing elements for easy maintenance
- Suitable for bidirectional sealing applications
- Multiple actuation options: manual handle, pneumatic, or electric operation
- Available in flange or wafer connection types
- Customizable disc coating available upon request
Ideal for water supply and drainage systems, sewage treatment, food processing, heating systems, gas distribution, shipping, hydro-power, metallurgy, energy systems, and textile industries. Particularly suitable for bidirectional sealing applications in environments prone to corrosion.
Designed for temperatures below 120°C and nominal pressures up to 1.6 MPa, this valve delivers reliable performance in demanding industrial environments while maintaining cost-effectiveness and operational efficiency.
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