Rubber Seat & SS Disc Ductile Iron Wafer Butterfly Valve | Cost-Effective Industrial Solution

Introduction：

Rubber Seat & SS Disc Ductile Iron Wafer Butterfly Valve | Cost-Effective Industrial Solution

Tianjin Worlds Valve Co., Ltd. – ISO 9001, CE, UKCA & WRAS Certified Manufacturer

CBF02-TA01-Operation and Maintenance Manual DOWNLOAD

Technical Features & Advantages:

1. Ductile Iron Body Robustness

• Material Reliability: EN-GJS-400-18 ductile iron offers excellent mechanical strength and impact resistance

• Outstanding Corrosion Resistance: Ductile iron naturally forms a protective patina layer that inhibits rust, providing excellent corrosion resistance, particularly in water and wastewater applications. For more aggressive media, its properties can be significantly enhanced with various standard linings (such as epoxy) or coatings, making it suitable for a wide range of corrosive fluids.

• Excellent Cost-Effectiveness and Castability：Ductile iron is a highly cost-effective material solution. It provides mechanical properties close to carbon steel but at a lower overall cost.

2. Stainless Steel Disc Performance

• Corrosion Resistance: 316 stainless steel disc ensures longevity in water and mild chemical services  

• Surface Precision: Precision-machined disc surface guarantees perfect seating alignment  

• Durability: Maintains structural integrity under pressure and temperature variations

3. Rubber Seat Sealing Excellence

• Bubble-Tight Sealing: EPDM/NBR seats achieve zero leakage per EN 12266-1 Class A standards  

• Temperature Adaptability: Suitable for applications from -20°C to 120°C  

• Chemical Compatibility: Multiple rubber materials available for different media requirements

4. Wafer Design Efficiency

• Space Optimization: Compact design reduces installation space requirements by 40%  

• Easy Installation: Simple insertion between ANSI/DIN flanges without additional hardware  

• Weight Reduction: 35% lighter than lug-type valves of similar size

Standard:

Competitive Advantages  

• Optimal Value: Ductile iron body with stainless steel disc provides excellent performance at competitive pricing  

• Reliable Sealing: Rubber seats ensure bubble-tight shutoff for various fluid applications  

• Space Efficiency: Wafer design saves installation space and reduces overall project costs  

• Global Compliance: CE, UKCA, and WRAS certifications ensure international market acceptance  

• Low Maintenance: Durable materials and precision engineering minimize service requirements  

• Customization Options: Available in special sizes, coatings, and configurations for OEM projects  

Industry Applications:

• Water Treatment Systems: Distribution networks, filtration units, and pumping stations  

• HVAC Services: Chilled water circuits, cooling towers, and air handling systems  

• Industrial Processing: Cooling water lines, process fluid control, and utility services  

• Fire Protection: Sprinkler systems and hydrant supply lines  

• Building Services: Plumbing systems and mechanical equipment rooms  

• Irrigation Systems: Agricultural and landscape watering networks

Conclusion:

Combining ductile iron reliability with stainless steel durability and rubber seat performance, this wafer butterfly valve delivers exceptional value for water treatment, HVAC, and industrial applications requiring cost-effective flow control solutions.