The Double Flanged Short Type Butterfly Valve, specifically the Series F401, is a high-performance flow control solution engineered for precision and durability. Designed according to ISO 5752 basic series 13 and DIN 3202 part 1 series F16 standards, this valve features a specialized rubber liner spliced directly onto the body, ensuring superior structural strength and a highly reliable seal for the seat.
Engineered for versatility, the F401 series is available in sizes ranging from 2" to 48", catering to a wide array of industrial requirements. To further streamline installation and reduce leak points, the seat surface includes a casted O-ring, effectively eliminating the need for additional flange gaskets. Whether operated via manual handles, gear operators, or automated electric and pneumatic actuators, these valves deliver consistent reliability across diverse media and temperatures.
Detailed Parameters
| Size Range | 2" to 48" | Face to Face | ISO 5752 / DIN 3202 F16 |
|---|---|---|---|
| Body Materials | Cast Iron, Ductile Iron, Stainless Steel, Carbon Steel | Disc Materials | Ductile Iron, Stainless Steel, Al-Bronze |
| Seat Options | NBR, EPDM, Neoprene, PTFE, Viton | Stem Materials | Zinc Plated Steel, Stainless Steel (316/410/420) |
| Operation | Handle, Manual Gear, Electric, Pneumatic | Seal Type | Casted O-ring (No flange gasket needed) |
| Standard Compliance | ANSI 150, PN10, PN16 | Temp Rating | Up to 230℃ (depending on seat material) |
Key Advantages
Enhanced Sealing
Spliced rubber liner on the body provides higher strength and a more reliable seat seal for leak-proof operation.
Fast Installation
The integrated casted O-ring on the seal surface eliminates the need for separate flange gaskets, reducing setup time.
Material Versatility
Wide selection of body and seat materials to match specific chemical compatibility and temperature requirements.
Flexible Actuation
Compatible with manual handles, gear operators, and fully automated pneumatic or electric actuators.
Precision Engineering
Manufactured to strict ISO and DIN standards, ensuring perfect fitment in international piping systems.
Wide Size Range
Available from 2" to 48", allowing for a standardized valve series across different pipeline diameters.
Product Gallery
Management Platforms
Material Selection
Customizable material lists for Body, Stem, and Disc to suit your specific media.
Operation Control
Switch seamlessly between manual gear and automated pneumatic/electric actuators.
Temp Monitoring
Strict temperature rating management from -50℃ (PTFE) up to 230℃ (Viton).
Standard Alignment
Full alignment with ANSI 150, PN10, and PN16 pressure ratings for global use.
Seal Management
Integrated O-ring system to prevent leakage and reduce maintenance overhead.
Quality Assurance
Rigorous testing according to DIN and ISO standards for every valve unit.
Investment Return Comparison
| Feature | Standard Butterfly Valve | F401 Double Flanged |
|---|---|---|
| Installation Time | High (Requires Gaskets) | Low (Integrated O-Ring) |
| Seal Reliability | Standard | Enhanced (Spliced Liner) |
| Maintenance Cycle | Frequent | Extended Life |
| Material Options | Limited | Extensive (Customizable) |
| Operational Cost | Moderate | Low (High Efficiency) |
Frequently Asked Questions
The spliced rubber liner increases the structural strength of the valve body and ensures a more reliable and tighter seal at the seat, reducing the risk of leaks under pressure.
No, the F401 series features a casted O-ring on the seal surface of the seat, which negates the need for additional flange gaskets during installation.
For high temperatures, PTFE (up to 200℃) or Viton (up to 230℃) are recommended. Please consult our technical team for specific medium compatibility.
The valve can be equipped with manual handles, manual gear operators, and fully automated electric or pneumatic actuators depending on your system requirements.
The valves are available in a wide range of sizes from 2 inches up to 48 inches to accommodate various pipe diameters.
Yes, we offer various body materials including Stainless Steel (CF8, CF8M, CF3, CF3M) and Carbon Steel to ensure durability in corrosive industrial environments.
