The Long Neck Wafer Type Model 25 Butterfly Valve is a high-performance flow control solution engineered for industrial precision. Designed with a specialized long neck profile, this valve allows for easier operation and accessibility in tight or recessed piping installations, ensuring a secure seal and efficient fluid management across various medium types.
Constructed from premium materials including Ductile Cast Iron and high-grade Stainless Steel, the Model 25 is built to withstand rigorous industrial environments. Its wafer-type design facilitates a compact installation footprint, reducing overall system weight while maintaining superior pressure ratings and operational longevity for professional manufacturing applications.
Detailed Parameters
| Body Material | Cast Iron (ASTM A126 CL. B) / Ductile Iron (ASTM A536 65-45-12) | Disc Material | Ductile Iron (Nickel/Nylon coated) / Stainless Steel (CF8, CF8M, etc.) |
|---|---|---|---|
| Upper Stem | Zinc Plated Steel / Stainless Steel (ASTM A276 Type 316, 410, 420) | Lower Stem | Zinc Plated Steel / Stainless Steel (ASTM A276 Type 316, 410, 420) |
| Seat Options | NBR, EPDM, Neoprene, PTFE, Viton | O-Ring Material | NBR, EPDM, Neoprene, Viton |
| Spring Pin | Carbon Steel / Stainless Steel | Bushing Material | PTFE, Nylon, Lubricated Bronze |
| Available Sizes | 2" to 12" (DN50 to DN300) | Connection Type | Wafer Type / Long Neck Design |
Key Advantages
Premium Durability
Utilizing ASTM standard ductile iron and stainless steel for maximum corrosion resistance and structural integrity.
Extended Lifespan
High-quality seat materials like Viton and PTFE ensure leak-proof performance even in aggressive environments.
Precision Engineering
Strict adherence to dimensional tolerances ensuring seamless integration into existing piping networks.
Operational Ease
The long neck design provides superior leverage and accessibility for manual actuation in complex layouts.
Versatile Application
Compatible with a wide range of media thanks to interchangeable seat and disc material options.
Compact Footprint
Wafer style installation minimizes space requirements and reduces total installation costs.
Product Gallery
Management Platforms
Inventory Control
Streamlined tracking for all valve series including F101 and F235 to ensure rapid delivery.
Quality Assurance
Rigorous testing protocols for every wafer valve to meet international industrial standards.
Order Monitoring
Real-time updates on production status from casting to final assembly and shipment.
Technical Support
Expert guidance on material selection (NBR vs Viton) based on your specific fluid medium.
Logistics Optimization
Efficient packaging and shipping strategies for heavy-duty valve components worldwide.
Custom Configuration
Tailored material specifications for the disc and stem to suit unique corrosive environments.
Investment Return Comparison
| Performance Metric | Standard Valves | Model 25 Butterfly Valve |
|---|---|---|
| Installation Cost | High (Heavy Flanges) | Low (Compact Wafer) |
| Maintenance Cycle | Frequent | Extended (Durable Seats) |
| Operational Speed | Slow | Rapid 90-degree Turn |
| Material Life | Standard Carbon Steel | High-Grade Stainless/Ductile |
| System Downtime | Moderate | Minimal (Easy Access) |
Frequently Asked Questions
Wafer type valves are more compact and cost-effective, as they are sandwiched between two flanges, reducing the overall weight and installation space compared to lug types.
For high-temperature or chemically aggressive environments, Viton or PTFE seats are recommended due to their superior thermal stability and chemical resistance.
Yes, by selecting Stainless Steel (CF8/CF8M) for the disc and stem, the Model 25 can be effectively used in corrosive environments.
The long neck extends the actuator/handle further from the pipeline, which is critical for installations where the valve is recessed or obstructed by other equipment.
Yes, the use of ASTM A536 Ductile Cast Iron ensures the body can withstand significant pressure loads typical in general equipment manufacturing.
Our Model 25 is available in a wide range of sizes from 2 inches (50mm) up to 12 inches (300mm) to fit most industrial piping needs.
