Forged Trunnion Flange Ball Valve

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

Grease Injection Design On Stem

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

injection.  It  is effectively avoiding the leakage caused by the stem "O"rings are unexpectedly damaged.

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

valve. 

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

Anti-static design

DBV trunnion ball valve design forms a electrostatic channel through ball, stem and body. 

This structure leads the electrostatic spark to the earth caused by the  friction between the 

ball and the seat. This structure could avoid the fire disaster and explosive accident.

Platform

The platform design is convenient for assembling worm gear, pneumatic, electric, hydraulic and 

pneumatic & hydraulic actuators.

Valve Stand

 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.

 Product Comparison 

 Appearance 

 Nitriding Thicken Stem Design 

  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 details>

Email: [email protected]  

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

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