Worm gear WCB DN500 Wafer Triple Eccentric Butterfly Valves

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

Oval Turtle Disc Design

DBV butterfly valve adopts the unique oval turtle

advantages  such  as   high   strength,   good  flow 

truss  structure  design  of  the  disc.  It  has several 

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.

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  embed

-ded 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.

  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.

  Product Comparison  

  Pin Design  

  Bottom Cover Design  

  Bolt & Nut  

  Painting    

  Factory Direct Sales  

  Q1. Are you a factory or trading company?

  A: We are a factory specialized in manufacturing valves 20 years. We both have factory in Wenzhou and Shanghai.

  Q2. Can I have a sample order for valve?

  A: Yes, we welcome sample order to test and check quality.Mixed samples are acceptable. 

  Q3.Do you have any MOQ limit for valve order?

  A: Low MOQ, 1pc for sample checking is available

  Q4. How do you ship the goods?

  A: We usually ship by sea, by air, by courier, etc.

  Q5. How to check the process of the order?

  A: You can check your order on our website after we provide you account and password.

  Q6: Do you offer guarantee for the products?

  A: Yes, we offer 2 years warranty to our products and we could repair freely for lifelong time.

  Q7: Can you put our Logo on the valves?

  A:Yes, we can totally produce products according to your special request, even manufacture them base on your drawing.

  Q8: How can I check your factory situation while it's difficult for me to come to China?

  A：We have photos and videos on our website, youtube and facebook, It shows every step of our manufacturing.     

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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