Double eccentric double flange butterfly valve

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D-41Xb double eccentric Butterfly Valve, rubber seated  design, double flange,  is applied in the water industry, municipal engineering, water conservancy project, drinking water engineering, and etc.

Design standard: BS EN593
Face to face length : EN558-1/ISO5752 series 14& ISO5752 series 13
Flange dimension and drill : BS EN1092/BS4504 (DIN2501)
Size: DN100 – DN4000/ 4"-160"
Pressure rating:PN10-PN16-PN25-PN40
Application: water, drinking water, sewage, low-corrosive liquid etc.

Flange and drilling to EN1092-2, face to face as per ISO5752 series 14 
ISO5752 series 13

Streamlined low profile disc ensures the lower flow resistance.
►3. Body
Stainless steel welded and finished body seat ensures Reliable and durable performance.
►4. Shaft
Disc to shaft connection by means of key, or taper pin.
►5. Bearing
Self lubricating bearing of Al-bronze material, free from maintenance.
►6. Gearbox
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

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