DIN Stainless steel 904L Trunnion/Fixed Full Bore Ball valve - Trunnion mounted ball valve


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DIN Stainless steel 904L Trunnion/Fixed Full Bore Ball valve
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DIN Stainless steel 904L Trunnion/Fixed Full Bore Ball valve

  • Product description:

    DBV trunnion mounted ball valves are offered in 2 Pieces body and side entry type with stainless steel 904L special material. DBV trunnion mounted ball valves are manufactured according to API 6D and fire safe test per API 6FA or API 607.

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Trunnion/Fixed Full Bore Ball valve

1g Valve description



         Body: 904L

Nominal Pressure


Nominal Diameter:


End Sealing:


Face To Face:


Working Temperature:  


Test And Inspection:

API 598/ISO 5208

End Connection:



NACE 0175


ISO9001, ISO14001, ISO28001, TS, CE,TUV

We also can produce other special material according to customer's drawing.

2g valve details


Grease Injection Design On Seat


DBV trunnion ball valve (DN≥150,NPS6)adopts the design of grease

injection.  It  is effectively avoiding the leakage caused by the seat rings

are unexpectedly damaged.


Blow-off Design

When the valve is closed, the pressure in the body cavity will be

accumulated , and the pressure is removed by opening the blow-off



Drain Valve Design 

The seal of the trunnion ball valve is achieved by the floating seat.When

the waste of the inner cavity is removed through drain valve, the

pressure will exist between the inlet and outlet end of the compression

seat, and it is easier to achieve the sealing performance.


Standard Bolts & Nuts

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

extend the valve longer service life.


 Hook Design



The yoke design 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 


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.

 Product Comparison 


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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


dbv ball valve manufacturer

Company Profile:

DBV VALVE CO., LTD is manufacturer of valves.

more detail>

Email: [email protected]

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

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