Concentric Disc Wafer Flange Butterfly Valve

Specifications

Ductile iron concentric double flange type butterfly valve:

1.DN50~1400 PN10/16

2.ISO9001:2008 CE

3.Factory built in 1997

Ductile Iron Concentric Double Flange Butterfly Valve:

 

DN50~1400 PN10/16
Flange: EN1092
F/F: EN 558-1 series13/20

 

Product Advantage:

 

 1)Simple and compact structure, light weight 90 rotation, quick and flexible opening and closing.

 

 

2)Sound seal design gives full sealing without any leakage, thus ensuring a reliable application in adverse 
working condition.

 

3)By changing disc seal ring, O-ring, disc, shaft and the like, the product can be used in many different media 
and temperature conditions.

 

4)The valve body is provided with foundation support, so it can be installed either vertically or horizontally.

 

5)Easy to mount and dismantle, thus convenient for servicing.

 

Brief Introduction:

 

Butterfly valve is mainly consisted of body, stem, disc, seat and driver(lever, gearbox, pneumatic and electric Actuator) and so on. 

On off and controlling flow of valve are made by turning stem and disc together.

 

Product Information:

 

Size	DN50-DN2400
Design Standard	EN593
End flange	ANSI B 16.1, EN 1092
Face to face	EN 558-1 series13/20
Top flange	ISO 5211
Normal pressure	PN1.0/1.6MPa (150/200PSI)
Series 13
Body	HT200, A126 CLASS B, QT450-10, A536 65-5-12, WCB
Disc	DI, ALB, CF8, CF8M, 1.4529
Stem	416, 420, 431, 17-4PH
Seat	NBR, EPDM, Viton
Series20
Body	CI, DI, WCB
Disc	DI, ALB, CF8M, 1.4529
Stem	416, 420, 431
Seat	NBR, EPDM
Suitable temperature	-20C~150C
Suitable medium	fresh water, sewage, sea water, food etc.