Matched with various actuators, our butterfly valves can be installed with minimal effort and operated efficiently for easy open/close actions. Due to the selection of top-quality raw materials, our valves are made to last, reducing future costs and minimizing the need for repeated maintenance.
DomBor Valve’s factory uses advanced processing machinery to produce valves that adapt to your specifications. Passing through quality testing in every stage, our butterfly valve varieties have earned API 609, API 607, SIL3, CE, ISO 15848-1 and GOST certification. As such, they work well for chemical, food and pharmaceutical applications.
Efficient sealing makes our valves more convenient to open and close, along with enhancing their overall performance.
A low fugitive emissions design and high temperature resistance makes our valves more fit for extreme cycling applications.
Used in low pressure applications, our concentric valves come with flexible seat rubbers for easier flow control.
Made easy to install due to the wide range of different sizes, wafer-style butterfly valves come with multiple centering holes and open and close quickly during pneumatic actuation.
Providing a safe alternative to most valves, lug-style valves contain threaded bolts all around and can be applied as the end-of-line service.
DomBor excels in producing custom-made flange butterfly valves desired by your industry for optimum performance and longer periods of service.
Applied in extreme pressure environments, this valve type comes with metal seating that resists cracking and degeneration caused by high temperatures.
DomBor Valve, with its experienced specialists, specializes in manufacturing industrial valves and provides technical support and one-stop solutions for the global market.
A butterfly valve is a machine tool that regulates, restricts, or stops the pressure and flow of gases, liquids, or slurries through a piping system. The valve system operations occur through the opening, closing, or partly blocking different pathways.
This mechanical equipment is used in several industries, including oil and gas, water treatment, and more. Let’s find out more about the significance of butterfly valves in many industrial applications and why they are widely used compared to other valve types.
A butterfly valve is used to regulate both liquid and gas flow through pipes. It is a type of quarter-turn motion valve that can open and close whenever the rotating disc is turned at ninety degrees. Moreover, a butterfly valve is used in several industries due to its compatibility, reliability, and low maintenance features.
In fact, there is a substantial reliance rate on the butterfly valve industry because of its extensive utilization in different applications. This includes the automation, wastewater treatment, petrochemical, chemical, food and beverage, and pharmaceutical segments.
Basically, butterfly valves consist of four main parts: body, disc, stem, and seat. Each segment has a vital function.
Butterfly valves have bodies that can fit between two pipe flanges and the most common body structures are wafer and lug. The lug’s body has protruding lugs that present bolt holes matching those in the pipe flange. On the other hand, a wafer’s body does not contain protruding lugs. Instead, the wafer is sandwiched between pipe flanges, then the flange bolts surround its body.
The stem part could be a one-piece or two-piece shaft structure. It is protected from the media in most resilient seated designs, allowing an efficient material selection concerning cost and mechanical properties. On the contrary, the stem is in contact with the media in high-performance butterfly valve designs.
The disc is a moveable part that allows and restricts flow through the valve, rotating in one quarter-turn or ninety degrees. Thus, it is the flow closure in a butterfly valve, the counterpart of a plug when it comes to a plug valve, a ball in a ball valve, or a gate in a gate valve.
The seat is a surface inside the body that comes into contact with the disc to provide a tight shutoff. It can be a fireproof seat, resilient seat, or metal seat used to prevent compressed fluids or combustion gasses from getting into the manifold.
Like other types of valves, butterfly valves have their benefits and downsides.
Butterfly valves are lightweight and only require smaller space compared to other industrial valves in the business. Due to its compatibility, it is manageable and only needs a ninety-degree rotation of the handle to support a full opening or closing of the valve. Also, even if it is high-performing, it is easy to maintain and very cost-efficient.
Butterfly valves’ disc part tends to face the flow even if it is fully opened, leading to a pressure switch over the valve. Also, choked flow and possible cavitation are a worry when butterfly valves perform. Moreover, there are instances that they have a poor sealing function, and throttling is restricted to low-pressure drop applications.
Like other types of valves, butterfly valves have their benefits and downsides.
High performing butterfly valves are widely used in the oil and gas industry due to their capability to deliver a high degree of durability and reliability to ensure long service and low maintenance needs of pipelines in oil and gas applications.
Butterfly valves are also used in water supply, collection, distribution, and pumping stations because of their capacity to restrict and isolate the flow of fluids. These applications usually make use only of double offset and triple offset butterfly valves.
Generally, cryogenic butterfly valves are used on processes concerning liquefied gases like oxygen, liquid nitrogen, and liquefied natural gas (LNG). They can also be used in fuel gas supply systems (FGSS) and LNG engines or gas turbines.
There are three main types of butterfly valves. First is the rubber-lined valve, which are less expensive compared to other types. Then there’s plastic-lined valves are used for sanitary and abrasive applications. On the other hand, the metal types are utilized for high-pressure and high-temperature applications.
Here are the different butterfly valves segmented by body types.
A wafer style butterfly valve features two or more centering holes to support installation between pipes. They are widely used since they are lighter and cheaper.
A lug style features threaded metal bolts around the entire body. Its main application is to connect and disconnect piping systems – from one side without distributing on the other side of the system. A lug style can replace a wafer valve. However, you can’t switch from a lug to a wafer.
Flange butterfly valves are known for their large sizes. They are used for various methods of piping connection. These types have raised or winged edges in the enclosure so that they can be fastened in between two pipes.
Flange butterfly valves are known for their large sizes. They are used for various methods of piping connection. These types have raised or winged edges in the enclosure so that they can be fastened in between two pipes.
The welded butterfly valve is used for very high-pressure operations. Since most plastic-lined valves are very limited to PN10/16 (150#) flanges, the welded butterfly valve is rarely seen with plastic-lined valves. So, this type is typically made from stainless steel, aluminum, or bronze elements.
Butterfly valves are also categorized by their disc alignments. Here’s zero, double, and triple offset.
Zero offset butterfly valves are what we know as rubber seated or resilient seated butterfly valves. These valves feature a central structure of its stem, disc, and body aligned in the same position. Thus, it is easy to manufacture because of its simple design.
Double offset butterfly valves, also known as high-performance butterfly valves, are used in many applications nowadays. Consider these types as an improved and better version of valves compared to the design and features of single offset butterfly valves.
Triple offset butterfly valves are designed based on the design of a double offset butterfly valve. Apparently, there are three offsets in triple offset butterfly valves. Two are situated in identical positions similar to a double offset butterfly valve. Then there is the third offset, which is geometrically aligned on the seating surface.
Our products and services comply with international standards and specifications to make sure that we only produce the best and highest quality products and services to our clients.
We offer tailor-made industrial valves to ensure that our product fits your application standards and demand. Dombor is ISO, API, MSS, and ASME compliant to guarantee you the highest product quality.
As a business partner, Dombor makes sure that we commit to our clients’ requested deadline because we very much understand the importance of adhering to the timeline required.
Dombor’s service does not end once our products are being delivered. Also, we offer warranties and provide customer service to our clients as part of our quality service.
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.
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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