China F5 Double Flanged Eccentric Butterfly Valve with Bypass Valve

F5 double eccentric Butterfly Valve with bypass valve
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"
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 15.
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
10. With byapss valve
rubber seated Butterfly Valve, double eccentric disc design, double flange, series 14 or series 13
Design standard: BS EN593
Face to face length : EN558-1/ISO5752 series 14 (DIN3202 F4) / 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.

Size

DN100 to DN4000

Pressure

PN10, PN16, PN25, PN40

Suitablem

water, and other weak corrosive liquid etc.

Temp.

-10~120°C

2. Double flanged double eccentric rubber seated butterfly standard items:

Description

Standard

Design and manufacture

EN593

Face to face

ISO5752 series14, EN558-1 series 14, DIN3202 F4

Flange and drilling

ISO7005-2, EN1092, DIN2501

Pressure test

EN12266 ISO5208

Top flange of bare shaft valve

ISO5211

Top flange on worm gearbox for e-actuator

ISO5210

3. Double flanged double eccentric rubber seated butterfly main part material items:

Name

Material

Body

ductile cast iron, WCB, stainless steel

Disc

ductile cast iron, WCB, stainless steel, Al-bronze

Stem

SS420, SS431

Disc seat ring

EPDM,NBR,VITON

Body seat ring

SS304

Retainer

SS304, SS316

Shaft bearing

Al-bronze, self-lubricating bearing

Bolt & nuts

8.8 grade galvanized, SS304

Coating

epoxy coating, thickness: min. 250 microns, color code: RAl5015, 5017, 5010, and etc.

4. Operating mode: bare shaft, worm gear+handwheel, electirc actuator, pneumatic actuator, hydraulic actuator, etc.

1. Product catalogue:
2.BCT Customers

3.Workshop and process

4.Inspection and test

5.Packing

6.Installation and application