High pressure fully welded ball valve with bare shaft - Trunnion mounted ball valve


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High pressure fully welded ball valve with bare shaft
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High pressure fully welded ball valve with bare shaft

  • Product description:

    Trunnion mounted ball valve welded body end design Butt welded Body material:ASTM A350 LF2 Ball material:ASTM A182 F316 Seat:metal to metal Worm Gear/Pneumatic operated

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High pressure fully welded ball valve with bare shaft

1g Valve description

Fully welded trunnion mounted forged ball valve manufacturer


Body: LF2

Nominal Pressure


Nominal Diameter:


End Sealing:


Face To Face:


Working Temperature:  


Test And Inspection:

API 598/ISO 5208

End Connection:

Butt Welded


NACE 0175


ISO9001, ISO14001, ISO28001, TS, CE,TUV

We also can make products according to customer's drawing.

2g valve details

Valve body heat number


Every valve in DBV with clear typewriting.Our big

size ball valves also can comply with the leakage class A.(Zero Leakage).

High pressure worm gear fully welded ball valve

Full port/full bore

Full bore 100% open according to API 6D standard.We 

also can produce reduce bore ball valves.

Resultant roughness between 125-500 micro inches.

Butt welded connection

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.

Top flange ISO 5211

Top flange      

The top flange design comply with ISO 5211,The yoke

is convenient for assembling worm gear, pneumatic, 

electric, hydraulic and pneumatic & hydraulic actuators.

3g why dbv valve

 Outer Trunnion Ball 


The trunnion ball is the standard deisign for ball valves, which guarantees an

 easy assembling into valve, a wide surface for washers (reducing friction and

 torque).The ball can only turn around its own axe (trunnion axe) and sealing

 is guaranteed by the axial movement of the seats for springs or inline pressure.

The trunnion design is suggested for medium and big dimensions and enables to

 avoid high torque during opening or closing phase with inline pressure. The critical

 issue for these products consists in the poor material between the bore and the washer

 area it occurs an easier deformation of the ball for high pressure and consequently

leakage between seats and ball.

 Inner Trunnion Ball 


This structure is suitable for small size valve or higher pressure

environment. With simple design and convenient maching, this

ball guarantees a stronger resistance of the ball than the outer,

and so less deformation in high pressure condition reducing the

risk of leakage between ball and seats. However, it's critical for

the valve assembling especially for big dimensions; limited space

for washers.

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DBVFACTORYDBV Butterfly Valve 

Quality, transportation, after-sales

4g FQ

  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?

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

5g Contact us
Butterfly Valve Contact

Company Profile:

DBV VALVE GROUP CO., LTD is manufacturer of valves.

more details>

Email: [email protected]  

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

Warm Notice: 

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