The Double Flanged Short Type Butterfly Valve (Series F401) is a high-performance industrial solution engineered for precise flow control and reliable sealing. 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, significantly enhancing structural strength and ensuring a more dependable seal for the seat.
To optimize installation efficiency, the valve incorporates a cast O-ring on the seal surface, effectively eliminating the need for separate flange gaskets. With a versatile size range from 2" to 48" and multiple actuation options—including manual handles, gear operators, and electric or pneumatic actuators—it is perfectly suited for diverse demanding applications in general equipment manufacturing and fluid handling.
Detailed Parameters
| Standard Compliance | ISO 5752 Series 13 / DIN 3202 F16 | Available Sizes | 2" to 48" |
|---|---|---|---|
| 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 Modes | Handle, Manual Gear, Electric, Pneumatic | Sealing Feature | Integrated Cast O-Ring (Gasket-free) |
| Face-to-Face | Short Type (Double Flanged) | Temperature Range | From -50°C (PTFE) up to 230°C (Viton) |
Key Advantages
Enhanced Durability
The spliced rubber liner increases body strength and provides superior resistance to wear and pressure.
Rapid Installation
Integrated O-rings on the seal surface remove the need for flange gaskets, reducing installation time.
Reliable Sealing
Optimized seat design ensures a bubble-tight shut-off and prevents leakage in critical pipelines.
Flexible Actuation
Compatible with manual, pneumatic, and electric actuators to fit any automation requirement.
Material Versatility
Wide selection of metals and elastomers to handle corrosive media and extreme temperatures.
Global Standards
Fully compliant with ANSI 150, PN10, and PN16 ratings for worldwide compatibility.
Product Gallery
Management Platforms
Inventory Control
Real-time tracking of valve sizes from 2" to 48" to ensure immediate shipping.
Quality Assurance
Strict adherence to ISO and DIN standards for every produced unit.
Customization Hub
Tailored material selection based on medium and temperature specifications.
Technical Support
Expert guidance on choosing the right seat material (NBR/EPDM/PTFE) for your application.
Logistics Optimization
Global shipping coordination for heavy-duty valve components.
Actuator Integration
Seamless synchronization of pneumatic and electric actuators during assembly.
Investment Return Comparison
| Feature | Standard Butterfly Valve | F401 Series Valve |
|---|---|---|
| Installation Speed | Requires external gaskets | Built-in O-ring (Faster) |
| Seal Reliability | Standard seating | Spliced Rubber Liner (Higher) |
| Maintenance Cycle | Frequent gasket replacement | Extended lifespan |
| Material Choice | Limited options | Extensive (Steel/SS/Iron) |
| Operating Cost | Standard | Lower due to reduced downtime |
Frequently Asked Questions
The spliced rubber liner increases the overall strength of the body and ensures a more reliable and tighter seal for the seat compared to standard liners.
No, the F401 series features a cast O-ring on the seal surface, which negates the need for additional flange gaskets during installation.
For high temperatures, PTFE (up to 200°C) or Viton (up to 230°C) are the recommended choices based on the temperature rating chart.
The valve is available with manual handles, manual gear operators, and fully automated electric or pneumatic actuators.
Yes, by selecting Stainless Steel (CF8/CF8M) for the body and disc and a compatible elastomer like PTFE or Viton for the seat.
The valve is available in sizes from 2" to 48" and supports ANSI 150, PN10, and PN16 pressure ratings.
