Wafer carbon steel butterfly valve class 150 

Name:	Wafer type butterfly valve
Material:	Body:WCB; Disc: WCB, Stem: 13Cr. Seat: WCB Overlay STL
Nominal Pressure:	CLASS 150LB
Nominal Diameter:	DN350
End Connection:	Flange
Structure:	Triple Eccentricity
Operation:	Worm gear
Valve type:	Industrial Valve
Working Temp.:	-150℃~+750℃
Design Standard:	API 609
Test / Inspection:	API 598/ISO 5208
Face To Face:	API 609

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

Unique Plum Pin Design

DBV butterfly valve adopts  the  plum pin design,  which

is  different  from  traditional  pin  design.  As we all know, 

traditional  pin is straight to the stem,  but  the plum pin is

tilted to the stem. From the aspect of application, the plum

pin could afford higher pressure and larger diameter.

Oval Turtle Disc Design

DBV butterfly valve adopts the unique oval turtle

or truss  structure design of the disc. It has several

advantages  such  as   high   strength,   good  flow

characteristics and low flow-resistance coefficient. 

Up Blow-out Proof Design

DBV butterfly valve adopts the design of stepped shaft 

with  the  gland.  It  is effectively that prevent the stem 

blows out from the top.

  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.

Company Profile:

DBV VALVE CO., LTD is manufacturer of valves.

                                                                                more detail>

^{Email: info@dbv-armaturen.com}  

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

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