Double Flange Eccentric EPDM Seal Butterfly Valve (DIN F4)

Product Overview

The Double Flange Eccentric EPDM Seal Butterfly Valve (DIN F4) is a high-performance industrial valve designed for reliable flow control and shut-off in pipeline systems. With an eccentric disc structure and resilient EPDM sealing, it ensures tight sealing performance, low torque operation, and long service life. It is widely used in water supply, drainage, and industrial applications.

Key Features

• Complies with DIN F4 standard design

• Double flange connection for strong pipeline stability

• Eccentric disc design reduces wear and improves sealing

• EPDM resilient seat for excellent sealing performance

• Low operating torque for easy manual or automated operation

• Bi-directional sealing capability (depending on design)

• Durable corrosion-resistant coating options

• Suitable for large diameter pipeline systems

Applications

• Municipal water supply systems

• Wastewater and sewage treatment

• HVAC and cooling water systems

• Industrial fluid pipelines

• Pumping stations and distribution networks

• Fire protection systems

• Irrigation and agricultural systems

• General utility and infrastructure projects

Technical Specifications

• Product Type: Butterfly Valve

• Standard: DIN F4

• Structure: Double flange, eccentric design

• Seat Material: EPDM rubber sealing

• Body Material: Ductile iron / cast iron (optional)

• Disc Material: Stainless steel / ductile iron

• Pressure Rating: PN10 / PN16 (typical options)

• Operation: Manual gearbox / electric actuator / pneumatic actuator

• Temperature Range: Dependent on EPDM material limits

• Installation: Horizontal pipeline flange connection

Advantages

• Excellent sealing performance with EPDM seat

• Reduced friction and wear due to eccentric design

• Low torque operation for energy efficiency

• Strong durability in water and industrial systems

• Easy installation and maintenance

• Suitable for large-scale pipeline networks

Quality Assurance

The valve is manufactured under strict quality control systems and tested for sealing integrity, pressure resistance, and mechanical performance to ensure compliance with international standards and reliable long-term operation.

Conclusion

The Double Flange Eccentric EPDM Seal Butterfly Valve (DIN F4) provides a dependable and efficient solution for flow control in water and industrial systems, offering durability, tight sealing, and smooth operation in demanding pipeline applications.