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

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

The yoke design is convenient for assembling worm gear, pneumatic, 

pneumatic & hydraulic actuators.

  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 

 Quality Assurance 

Our products are with 2 years quality assurance and lifelong maintenance. 

Warranty  time  starts from the dispatch of the goods. Quality assurance means 

all the cost arising form the quality problems caused by the manufacturer within two years will be afforded by us.

International Logistics 

In general, the delivery time will be confirmed with the customer in the order.

1-2 days after getting the bank receipt or deposit , the goods will make arrangements.

Shipment: CIF, FOB,etc.  

Transportation: air, sea, train, logistics.

 After-sales Service 

Email
We have an email specialized for customer to ask the position of the shipment 

and the express, also make the complain or suggestion.

Free Installation Guide

After receiving the goods, you will get a professional installation guide. 

  Q1. Are you a factory or trading company?

  A: We are a factory specialized in manufacturing valves over 15 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. The sample is free.

  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 print our Logo on the valves?

  A:Yes, we can totally produce products according to your special request, even manufacture it 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 the manufacturing.

more detail>

Shanghai China.