Triple eccentric/Offset metal to metal seat wafer Lug Butterfly Valve 4" CL 600

Material:	5A
Nominal Pressure	CL600
Nominal Diameter:	4"
End Sealing:	ASME B16.10
Face To Face:	ASME B16.10
Working Temperature:	-294℃～315℃
Test And Inspection:	API 598/ISO 5208
End Connection:	Lug
NACE:	NACE 0175
Certificate:	ISO9001, ISO14001, ISO28001, TS, CE,TUV

PS: We also can do according to customer's requirements.

Innovation                                                                  

This is our new design of Europe design for Europe market
 


 




Forgec Disc                                                       

Forged Duplex steel F53 disc for high pressure Class 600.












Integral Yoke                              
  
Yoke and body casting in whole,this new design is very beautiful and can avoid the leakage on yoke.












Flange face finish

The ASME B16.5 code requires that the flange
face(raised face and flat face)has a specific
roughness to ensure that this surface be compatible
with the gasket and provide a high quality seal.










  Triple Eccentricity Design Features  
 The stem is offset on both the X (1)and Y (2) axis of the valve's
center line. This produces a cam一like motion. The third offset (3)
consists of an inclined conical  profile machined into  the  valve
sealing  surface. This allows rotary engagement and disengagement  
of   the   seat   and   seal   ring without interference.  All  rubbing
between  seat  and seal ring is thereby eliminated. Once the seat
and seal ring are  fully  engaged  torque  is applied in order to 
create a bi一directional, zero leakage,  metal-to一metal seal. For
this reason, triple offset valves are often defined as "torque" seated
rather than”position” seated as in the case of resilient or high performance products.