Double Block and Bleed Ball Valves

Safety-Oriented Double-Block-and-Bleed Ball Valves

Double-block-and-bleed ball valves (DBB ball valves) allow for a pipe section to be shut down from both sides of the valve. This design feature keeps everyone safe from accidental leaks that can cause harm, making it efficient for the oil and gas industry. Along with strong security features, our valves reduce the need for added valves and save both on space and costs.


To achieve our results, we design the valve thoroughly in our facilities. In maximizing our efficiency, we use a comprehensive range of manufacturing and testing equipment that detects defects early on and ensures faster performance.

The Lowest-Cost Strategy Is To Choose Reliable DomBor Valves.

DomBor Valve, with its experienced specialists, specializes in manufacturing industrial valves and provides technical support and one-stop solutions for the global market.

Premium Double Block and Bleed Ball Valve Manufacturers 

Dombor, an industrial valve manufacturer, with over 20 years of industry experience utilizes cutting edge technology and advanced production techniques to manufacture quality and superior valves. Thanks to our highly-skilled engineers and standard factory, answers are granted to rising concerns in the valve industry. With this, we stay ahead of other double block and bleed ball valve manufacturers in the global market.


Our numerous advanced machinery also enhance our production processes to ensure we deliver exceptional wholesale DBB ball valves for refineries, oil and gas factories, petrochemical industries, etc.

Double Block and Bleed Ball Valve 2

Features of Double Block and Bleed Ball Valve 

Below are some of the fascinating features of double block and bleed ball (DBB) valve.


  • Anti-blowout stem.
  • Lip seal configuration. 
  • Emergency seal out injection available on both seats and stem.
  • Extended bonnet available for both low and high temperature. 
  • Low pressure loss through the valves.
  • Provides dual insulation between valves.

Advantages of Double Block and Bleed Ball Valve 

As one of the leading DBB ball valve manufacturers, these are the benefits you’ll get from our products.


  • Saves space.
  • Reduces the need for a multi-valve system.
  • Zero-leakage capability. 
  • Enables integrity check on seat seals.
  • Reduction in weight, space and installation time.
  • Minimizes hazardous risk while transferring media.

DBB Ball Valves Collection

DBB stands for Double Block and Bleed, and it is generally used for regulation of the flow process and the diversion of the flow. Double Block and Bleed valves reduce the time required in installation, require minimal space, and the weight is comparatively lesser on the piping system.


Dombor is one of the best manufacturers of DBB ball valves. We make sure that the DBB Valve produced and used by the companies reduces the leaks of hazardous oil or gas in the atmosphere, which is not good for mankind and the atmosphere.


The structure of a DBB ball is such that it includes two seats on the surface which provides pressure against the seal from both sides of the valve whenever it is in the closed position.

Some of the parts of a ball valve are:

Our DBB ball valves are used for many industries, including the gas and oil industries. It is generally used where the cavity of the valve is bleeding, where maintenance is required, needs isolation, and other situations such as :

When looking for a double block and bleed ball valve, it is very important to consider certain properties of the valve, including the temperature of the ball valve, the pressure of the valve, and the properties of the fluids. 

Applications of Dombor 3-Way Ball Valve

As a three way ball valve manufacturer, Dombor has continually aimed at manufacturing and supplying the best 3 way ball valves in the market. Below are some of the applications in various industries.


The DBB ball valve is commonly used in the oil and gas sector to reduce leakage pathways into the environment. With our mechanism in place, an efficient production process is assured in this industry.

Pipeline Industry

Our DBB ball valve is useful in the pipeline industry to minimize pressure loss through the pipes. They can as well be customized to fit your requirements.

Refinery and Petrochemical Industry

As one of the leading double block and bleed ball valve manufacturers, our valves are designed to prevent accidental leaks of dangerous gas in the atmosphere. This ability is very useful in industries that deal with chemicals, natural gas and adhesives.

Wastewater Treatment

Treatment and distribution of clean water is of high importance in water management companies. Our double block and bleed ball valves are a best bet to guarantee this without any limitation.

Marine and Ship

Due to its reduction in height and space, our double block and bleed ball valves at Dombor can easily be installed on ships running on high temperature and high pressure fluids. This helps optimize the operation of the shipping industry. 

Power Generation

Our DBB ball valves come handy in power generation companies to provide high resistance and lip seal configuration in order to boost all power generation projects.
double block and belld plug valve 02

Why do you need a Double Block and Bleed ball Valve?

A double block and bleed ball valve is used to block the flow of any liquid in the system, which helps prevent the liquid being mixed with the other components present there in the system. These are generally used in chemicals, gas, water, petrochemical, etc. The biggest advantage of installing a DBB ball valve is that the no. of leakage is reduced incredibly, which often occurs during the system’s operation.

20+ Year Experience As Double Block and Bleed Ball Valve Manufacturer 

Dombor is one of the prominent double block and bleed ball valve manufacturers and top entry ball valve manufacturers in the market today. Our ingenuity and continuous innovations in the field makes us exceptional. Below are some of the reasons you should partner with us when you need a reliable and quality DBB ball valve. 

Tailor-made Valve Solution

At Dombor, we offer different customization options that suit your exact needs. This one-stop solution distinguishes us from competitors and has earned us several certifications from regulatory organizations like the ISO, CE, EA, etc.


We are also specialized in providing all our clients with various types of valves, including 3 way ball valves, industrial ball valves, etc. This allows you to get the best products.


Our valves adhere strictly to all international standards and specifications, ensuring that your bulk order remains of high quality.

Fast Delivery

At Dombor, one valve unit are accepted, and we are keen on delivering your unit valve and bulk order within the agreed time.

After Sales Service

With our 24-month warranty period, you will enjoy technical assistance, on-site repairs, and free product replacements even after your product gets delivered to you.

How to Choose DBB Ball Valve When Sourcing 

The DBB ball valve is a combination of one or more isolation valves and one or more vent valves. Isolation of the flow of fluid in the system so that the fluid from upstream does not interfere with the components of the system at the downstream remains the utmost purpose of the valve.

However, while you are looking for a double block and bleed ball valve, it is important you put into consideration professional DBB ball valve manufacturers and the following factors.

  • Temperature of the ball valve
  • Pressure of the valve
  • Properties of the fluids
Double Block and Bleed Ball Valve
animated Logo of dombor

Generating high-quality valve solutions requires a deep insight into market needs. DomBor Valve, as a reliable valve manufacturer, relies on a trusted supply network, the latest production, and assembly machinery, along with digital design capabilities and 20 years of industry experience.

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