The Series F170 Lug Type Butterfly Valve is a high-performance industrial flow control solution engineered for precision and durability. Designed to meet rigorous international standards including ANSI, PN, and JIS, this valve provides a secure, leak-proof seal and is ideal for end-of-line services where disassembly of the downstream piping is not required.
Featuring a versatile range of material options—from ductile iron and carbon steel to high-grade stainless steel—the F170 series is optimized for a wide array of media and temperature environments. With customizable seat materials such as PTFE and Viton, it ensures maximum chemical compatibility and operational longevity across diverse manufacturing and processing applications.
Detailed Parameters
| Body Materials | Cast Iron (ASTM A126), Ductile Iron (ASTM A536), Stainless Steel (CF8/CF8M), Carbon Steel (WCB) | Stem Materials | Zinc Plated Steel, Stainless Steel (Type 316, 410, 420, 416) |
|---|---|---|---|
| Disc Materials | Ductile Iron (Nickel plated), Stainless Steel (CF8/CF8M), Al-Bronze (ASTM B148) | Seat Options | NBR, EPDM, Neoprene, PTFE, Viton |
| Standard Compliance | ANSI 125/150, PN10, PN16, JIS 10K | Size Range | 40mm (1½") to 600mm (24") |
| Temperature Range | -50°C to +230°C (Depending on seat material) | Seal Type | Lug Type (End-of-line capable) |
| Hardware | Carbon Steel Thrust Washers, Circlips, and Keys | Bushing Materials | PTFE, Nylon, Lubricated Bronze |
Key Advantages
Superior Corrosion Resistance
Available in CF8M and Al-Bronze, providing exceptional protection against aggressive chemical media.
Extended Service Life
High-grade stem materials and reinforced bushings reduce wear and tear during frequent cycling.
Precise Sealing
Advanced elastomer seat options ensure bubble-tight shut-off across various pressure ratings.
Versatile Installation
Lug type design allows for dead-end service, simplifying maintenance and pipeline modifications.
Wide Temp Tolerance
From PTFE (-50°C) to Viton (+230°C), seats are tailored for extreme thermal environments.
Global Compatibility
Fully compliant with ANSI, DIN, and JIS standards for seamless global integration.
Product Gallery
Management Platforms
Material Selection
Customizable alloy and elastomer selection based on medium and temperature.
Standard Alignment
Precise adherence to ANSI 150, PN16, and JIS 10K dimensional standards.
Thermal Monitoring
Rigorous seat temperature rating management to prevent premature failure.
Quality Control
Strict testing for pressure integrity and torque verification before shipment.
Inventory Management
Optimized logistics for F170 series components ensuring rapid lead times.
Technical Consulting
Expert guidance on selecting the right valve for special flow media.
Investment Return Comparison
| Evaluation Metric | Standard Butterfly Valve | Series F170 Lug Valve |
|---|---|---|
| Installation Flexibility | Wafer only (limited) | Lug Type (Dead-end capable) |
| Material Options | Basic Cast Iron | Custom Alloy / Stainless Steel |
| Seal Reliability | Standard Rubber | Advanced PTFE/Viton Options |
| Maintenance Cost | High (Requires full pipe dismantle) | Low (Independent removal) |
| Operational Life | Medium | High (Enhanced Stem & Bushing) |
Frequently Asked Questions
Lug valves have threaded inserts that allow them to be bolted directly to the pipeline, enabling them to be used for end-of-line service. Wafer valves must be sandwiched between two flanges and cannot be removed without dismantling the downstream piping.
Selection depends on temperature and medium. For example, PTFE is ideal for high temperatures (up to 200°C) and aggressive chemicals, while EPDM is preferred for water and steam applications up to 120°C.
Yes, the F170 is designed to comply with ANSI 125/150, PN10, and PN16 standards, making it suitable for a wide range of industrial pressure requirements.
For corrosive environments, we recommend Stainless Steel (ASTM A351 CF8 or CF8M) or Al-Bronze, which offer superior resistance compared to standard cast iron.
Yes, as temperatures drop, elastomer seats can become harder, which typically increases the operating torque required to open or close the valve.
The series covers a broad size range from 40mm (1.5 inches) up to 600mm (24 inches) to accommodate various piping diameters.
