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API Standard 609 Triple Offset Butterfly Valve

On the basis of double eccentric design, the centerline of the disc seal surface and the seat centerline forms angel, and slight move and radial deformation of the seat ring along with the disc, average compression around the seat ring thus achieves complete sealing. The unique triple eccentric design fully applies cam effect in the valve, greatly reduces the friction at the contact area, increases longer service life, achieves easy and convenient operation.

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API Standard 609 Triple Offset Butterfly Valve    


1. FEATURES

QQ截图20171113102011.png Triple eccentric design reduces the friction between disc and seat

QQ截图20171113102011.png Increasing the valve service life

QQ截图20171113102011.png Disc and seat oblique cone design turns the compression seal into torque seal,

achieves bi-directional seals.

QQ截图20171113102011.png Metals and non-metallic compound seal ring combines the rigidity of the metal

QQ截图20171113102011.png The wear-resistance and flexibility of the soft seat, ensures the reliable seat and greater performance.

QQ截图20171113102011.png Low opening torque value

 

2. TECHNICAL SPECIFICATIONS 


201711121310026250688.png

QQ截图20171113102011.png Design: API 609,  
QQ截图20171113102011.png Flange end: ASME B16.5, ASME B16.47
QQ截图20171113102011.png Face to face dimension: API 609, MSS SP-68
QQ截图20171113102011.png Working Pressure: Class 150 ~ Class 900
QQ截图20171113102011.png Working Temperature:  
    Seat(SS304, SS316): -73℃~+450℃
    Special Seat: -268℃~+650℃
QQ截图20171113102011.png Tested according to API 598.
For any other ends, please mark in the order.


3. MATERIALS

PARTS

 MATERIALS

Body

WCB, LCB, LCC, CF8, CF8M, CF3M, CF3

Seal Ring

SS 304, SS 316, S31803+Graphite/PTFE Laminated

Disc

WCB, LCB, LCC, CF8M, CF8, CF3, CF3M

Seal Surface

2Cr13, SS 304, SS 316, Stellite or Integral on body

Stem

F6A, F304, 17-4PH, F51

Bushing

SF-1, SS304 / SS316+PTFE, SS304 / SS316+Nitrided

Thrust Washer

SS 304+Graphite or PTFE

Packing

Graphite or PTFE

OTHER MATERIALS ARE AVAILABLE UPON YOUR REQUEST


4. FLOW FEATURES

图片8.png


 

 


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