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  • Double eccentric double flange butterfly valve
  • Double eccentric double flange butterfly valve
  • Double eccentric double flange butterfly valve

Double eccentric double flange butterfly valve

  • Design standard: BS EN593
  • Face to face length: EN558-1/ISO5752 series 14 (DIN3202 F4)/ISO5752 series 13
  • Flange dimension and drilling:: EN1092
  • Pressure test:: EN12266

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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:PN6- PN10-PN16-PN25-PN40
Application: water, drinking water, sewage, low-corrosive liquid etc.

Overview:
►1.Flange
Flange and drilling to EN1092-2, face to face as per ISO5752 series 14 
ISO5752 series 13

►2.Disc
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


 

 

Name

Material

Body

GJS500-7/ GJS400-15 

Disc

GJS500-7/ GJS400-15 

Shaft

SS420/SS431/Duplex 1.4462

Body seal ring

SS304

Disc seal ring

EPDM

Shaft bearing

Al-bronze

Retainer ring

Carbon steel +epoxy/ SS304

O ring

EPDM

Pin

SS420

Packing gland

Carbon steel +epoxy

End cover

Carbon steel +epoxy

Key

SS420

Connection flange

Carbon steel +epoxy

(Other Material are available on request)
Size: DN100 – DN4000/ 4"-160"
Pressure: PN6-PN10-PN16-PN25-PN40
Coating: fusion bonded epoxy coating min. thickness 250 micron.
Suitable medium: water, drinking water, sewage, lower-corrosive liquid etc.
Suitable temperature:-10-120
 


 

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