F5 double eccentric Butterfly Valve with bypass valve, rubber seated design, double flange, is applied in the water industry, municipal engineering, water conservancy project
Design standard: BS EN593
Face to face length : EN558-1/ISO5752 series 15
Flange dimension and drill : BS EN1092/BS4504 (DIN2501)
Size：DN100 – DN4000/ 4"-160"
Application: water, drinking water, sewage, low-corrosive liquid etc.
Flange and drilling to EN1092-2, face to face as per ISO5752 series 15.
Streamlined low profile disc ensures the lower flow resistance.
Stainless steel welded and finished body seat ensures Reliable and durable performance.
Disc to shaft connection by means of key, or taper pin.
Self lubricating bearing of Al-bronze material, free from maintenance.
Low torque gearbox can be easily operated by hand wheel or connect with actuator.
►7. Top flange
ISO 5211 top flange connect with gearbox or actuator.
►8. O ring
Multiple shaft O rings provide long life and reliable sealing performance, which is easy to be adjusted or replaced.
►9. Seal ring
T profiled disc seal ring fixed by retainer ensures the reliable sealing performance in both direction, which is also easy to be adjusted or replaced without any special tools
►10. With byapss valve