Resilient seated double eccentric flanged butterfly valve DN40-DN1800

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Product Description:

1.Technical Date:

Size: DN100-DN4000

Nominal Pressure: PN10/PN16

Operation Temperature: -10°C~150°C

Suitable Medium: Water,Sewage,Seawater,Gas,Food,Oils,etc.

2. Standard

Design Standard: GB/T 12238-2008

Structural Length: GB/T 12221-2005

Top Flange dimensions: ISO5211

Face to face dimensions: GB9112,DIN2501,BS4504,ISO2084,ANSI125

Type of connection:Flanged type

3. Features:
This valve is mainly composed of body, disc, stem, seat and transmission equipment. Simple, compact structure, small, portable, convenient transportation, installation and removal. 90 degrees, opening and closing of the switch is rapid, operation is small, light energy, sealed performance is good, service life is long, can achieve zero leakage. Flow curve tending to straight line. Excellent regulation performance.
4. Sealing performance:
Rubber seal valve, close the disc and seat sealing performance is good, and the torque is small. Is small, the friction between the butterfly plate and valve seat seal. Disc of the valve shaft drive, butterfly plate do rotate 90 degrees. Butterfly plate, flexible for opening and closing, without jamming, jumping phenomenon, small torque. Large diameter valve can replace the sealing ring online, convenient maintenance. Reverse valve seal is not good


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