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

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.

  Metal to Metal Design  

Company Profile:

DBV VALVE  CO., LTD is manufacturer of valves.

                                                                                more detail>

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Wenzhou Factory :No.96 Fanhua East Road,OuBei,WenZhou,Zhejiang,China,325102

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