Flange type butterfly valve with multi spline stem design

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

Typecasting                      

Every valve in DBV with clear typecasting.                            

Unique stem design                

The shaft can removable from the disc without any machine

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 gask.

Disc Fixed ring

DBV have the best design for the metal to metal renewable seat
butterfly valve with the disc fixed ring,If any problem with the seat,

we don't need change the whole valves,we can only change the seat.

  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.

  Multi-layer disc sealing ring  

Multi-layer disc sealing ring adopts ss304 and graphite laminated, 

sealing by the inside graphite, applied for low and middle pressure,

as recycle water, swage treatment, city building, etc.

  Factory Overveiw  

Company Profile:

DBV VALVE CO., LTD is manufacturer of valves.

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^{Email: [email protected]}  

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

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