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  • hydraulic butterfly check valve
  • hydraulic butterfly check valve
  • hydraulic butterfly check valve
  • hydraulic butterfly check valve

Hydraulic butterfly check valve

  • Design standard: BS EN593
  • Face to face length: : EN558-1/ISO 5752 series 14 (DIN3202 F4)
  • Flange dimension and drilling:: BS EN1092/BS4504 (DIN2501)

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Hydraulic butterfly check valve, hydraulic check valve, with counterweight and hydraulic station

Design standard
: BS EN593
Face to face length : EN558-1/ISO5752 series 14 (DIN3202 F4)
Flange dimension and drilling : EN1092/ISO5752(DIN2501), or other as request
Size: DN400 – DN2000/ 16"-80"
Pressure rating: PN6- PN10-PN16-PN25-PN40
Application: water industry, municipal engineering, water conservancy project, drinking water engineering, and pump station etc. 

Valve features:
►1. Flange
Flange and drilling according to EN1092-2, face to face as per ISO5752 series 14
►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
►8. O ring
Multiple shaft O rings provide long life and reliable sealing performance, which is easy to adjusted or replace
►9. Seal ring
T profiled disc seal ring fixed by retainer ensures the reliable sealing performance in both direction, which is also easy to adjusted or replaced without any special tools
►10. Performance
This valve is with hydraulic equipment, to install in the outlet of the pump to protect the pump station


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: DN400 – DN2000/ 16"-80"
Pressure rating:PN6- PN10-PN16-PN25-PN40
Coating: fusion bonded epoxy coating min. thickness 250 micron.
Usage: water industry, municipal engineering, water conservancy project, drinking water engineering, and pump station etc. 

                                                 
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