Worm Gear WCB Flange Triple Eccentric Butterfly Valve - Flanged Butterfly Valves


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Worm Gear WCB Flange Triple Eccentric Butterfly Valve
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Worm Gear WCB Flange Triple Eccentric Butterfly Valve

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    Worm Gear WCB Flange Triple Eccentric Butterfly Valve with the best flange, our DBV are very professional in industrial valve

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Worm gear WCB Butterfly Valve 

Valve manufacturer description

triple eccentric butterfly valve


Worm Gear WCB butterfly valve


Body:A216 WCB, Seat:316 Stem:316

Nominal Pressure:

Class 150~2500

Nominal Diameter:


End Connection:



Triple Eccentricity


Worm gear 

Valve type:

Industrial Valve

Working Temp.:


Design Standard:

API 609

Test / Inspection:

API 598/ISO 5208

Face To Face:

API 609

 PSWe also can do according to customer's requirements.

details-dbv valve manufacturer


Standard Bolts & Nuts 

DBV ball valve adopts the standard bolts and nuts. It could extend the

valve longer service life.


Internal Snap Ring and Bottom Cover Design

DBV butterfly valve adopts the unique stem design. The  bottom  of

the stem is slotted. The ring  is  embedded to prevent the stem blow 

out. Then, the snap bottom  cover  plays  a  same role. This design

suits for the valve which is larger than four inches.

3g why

  Triple Eccentricity Design Features  

TripleEccentricity 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  


dbv valve mnaufacturer Contact us

Butterfly Valve Contact  

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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