The Long Neck Lug Type Model 30 Butterfly Valve is a high-performance industrial flow control solution engineered for precision and durability. Featuring a robust lug-style body design and an extended neck for easier operation in constrained environments, this valve ensures a secure, leak-proof seal across a wide range of fluid applications in the general equipment manufacturing sector.
Designed for versatility, the Model 30 integrates premium materials including ASTM A126 cast iron and high-grade stainless steel to resist corrosion and wear. Whether used in water treatment, HVAC systems, or chemical processing, its superior sealing capabilities and streamlined design make it an ideal choice for engineers seeking reliability and long-term operational stability.
Detailed Parameters
| Body Materials | Cast Iron (ASTM A126 CL. B), Ductile Iron (ASTM A536 65-45-12) | Disc Materials | Ductile Iron, Stainless Steel (CF8, CF8M, CF3, CF3M), Al-Bronze |
|---|---|---|---|
| Stem Materials | Zinc Plated Steel, Stainless Steel (Type 316, 410, 420, 416) | Seat Materials | NBR, EPDM, Neoprene, PTFE, Viton |
| O-Ring Materials | NBR, EPDM, Neoprene, Viton | Bushing Materials | PTFE, Nylon, Lubricated Bronze |
| Available Sizes | 2" to 12" (50mm to 300mm) | Design Type | Long Neck Lug Type |
| Spring Pin | Carbon Steel or Stainless Steel | Disc Coating | Nickel plated or Nylon coated options |
Key Advantages
Superior Durability
Constructed with ASTM A536 ductile iron and stainless steel for maximum resistance to pressure and corrosion.
Extended Service Life
High-grade stem and seat materials reduce wear and tear, significantly lowering maintenance frequency.
Precision Sealing
Multiple seat options (PTFE, Viton, EPDM) ensure an airtight seal for diverse chemical compatibility.
Easy Installation
The Lug type design allows for dead-end service and simplifies mounting in piping systems.
Optimized Access
The long neck design provides better accessibility for manual operation in tight installation spaces.
Industry Standard
Fully compliant with global material standards, ensuring seamless integration into existing industrial lines.
Product Gallery
Management Platforms
Inventory Control
Efficient tracking of all Model 30 valve sizes and material configurations in real-time.
Quality Assurance
Strict adherence to ASTM standards with detailed material certification for every batch.
Rapid Fulfillment
Streamlined logistics ensuring fast delivery of standard butterfly valve configurations.
Custom Engineering
Capability to modify stem and seat materials to meet specific chemical requirements.
Global Sourcing
Integrated supply chain for high-quality raw materials like CF8M and Ductile Iron.
Technical Support
Expert guidance on valve selection and dimension matching for your piping layout.
Investment Return Comparison
| Metric | Standard Butterfly Valve | Model 30 Lug Type |
|---|---|---|
| Leakage Rate | Moderate | Ultra-Low / Zero Leakage |
| Maintenance Cycle | Frequent (6-12 months) | Extended (18-36 months) |
| Installation Time | Standard | Reduced (Quick Lug Mount) |
| Material Life | Basic Cast Iron | Enhanced Alloys/Stainless |
| Operational Cost | Higher due to wear | Low Lifecycle Cost |
Frequently Asked Questions
Lug type valves have threaded inserts (lugs) that allow them to be bolted directly to the pipe flange, meaning they can be used for dead-end service, whereas wafer types must be sandwiched between two flanges.
For high-temperature environments, Viton or PTFE are recommended due to their superior thermal stability and chemical resistance compared to NBR or EPDM.
Yes, by selecting Stainless Steel (CF8M/CF3M) for the disc and stem, and PTFE for the seat, the valve provides excellent resistance to most corrosive media.
The Model 30 is available in sizes ranging from 2 inches (50mm) up to 12 inches (300mm), catering to a variety of industrial pipe diameters.
Yes, the long neck design and standard stem mounting make it compatible with various pneumatic or electric actuators for automated flow control.
The long neck extends the handle/actuator further from the pipe, providing better leverage and clearance in congested piping layouts.
