Butterfly Valve
Wenzhou Deki Valve Co., Ltd., is a professional industrial valve supplier specialized in valve research, design, manufacturing,Our company is well in line with major international standards, such as ANSI/API, BS, DIN, JIS, GB and etc.Our company's main products include: Butterfly Valves, butterfly valves, ball valves, check valves, globe valves, plug valves, filters and etc. we have equipped with the state of the art lathe machines, CNCs, and inspection lab for material inspection and valve production and testing.
Why Choose Us
Quality Control
To keep the consistency of our product quality control, we have equipped with the state of the art lathe machines, CNCs, and inspection lab for material inspection and valve production and testing.
Comply with international standards
Our company is well in line with major international standards, such as ANSI/API, BS, DIN, JIS, GB and etc.
Large foreign trade customer base
Our valves and flow control components are exported to all over the world, like Southeast Asia, Middle East, Europe, Russia, North and South America, Africa, and etc.
Our Services
Our well trained team will always keep learning and improving for the lastest knowledge in production and customer service.
Save energy
The fluid power loss of the butterfly valve is small. Compared with other types of valves, the fluid resistance of the butterfly valve is smaller when it is open, which can effectively reduce energy consumption.
Low emissions
The butterfly valve has good sealing performance in the closed state, which can effectively prevent fluid leakage, reduce the emission of harmful substances, and protect the environment.
Efficient operation
The butterfly valve has a simple structure, flexible opening and closing, and easy operation. It is made of lightweight materials and is light in weight and labor-saving to operate, thereby reducing the consumption of human resources.
Wide scope of application
Butterfly valves are suitable for various media, including liquids, gases and fluid mixtures. Their materials can be selected according to specific media requirements, providing greater adaptability and stability.
Simple maintenance
The butterfly valve has a simple structure and is relatively easy to maintain and clean. They have fewer seals and dynamic seals that are easy to replace, reducing maintenance costs and time.
Zero-offset Butterfly Valve
“Concentric” or “rubber seated” are other names for the zero-offset design. Zero-offset means there is no offset by the stem of the valve. The valve seals via interference along the disc edge at the stem between the disc and the rubber seat.The rubber seated valve has the lowest pressure rating (up to 250 PSI) and withstands heat up to 400°F. Its rubber seat encases the body to prevent contact with the material which maintains the purity of the media.
High-Performance Double Offset Butterfly Valve
This butterfly valve is referred to as a double offset because the offset is in two places: at the line of the disc seat /body seal, and at the bore. Off-center positioning increases durability for the seal. High-performance valves tolerate pressure up to 1440 PSI and temps up to 1200°F. A cam-action occurs from the stem being behind the disc as it rubs against the during rotation at 90° for the first 10 degrees of opening, but also for the 10 degrees of closing.
Triple Offset Butterfly Valve
The best type of butterfly valve for high-pressure systems is the triple offset butterfly valve. Of the three types, the triple offset is the most advanced with lower emissions and is designed to work with various environments. Its heat tolerance is 1200°F as it can withstand 1,480 PSI of pressure.Like the double offset valve, the triple offset valve consists of two offsets situated in the center, but with a third offset having cam action with right-angled conical sealing. It is frictionless and long-wearing by the metal seal components not making contact until their final point.
Food Processing
Simple design, high durability, and low maintenance are the features needed to regulate fluid flow in any piping system. Certified Food Grade Seat is best for the Food Processing sector, so a White seat is preferred. While standard resilient seated valves are not 3A approved, there are many on the market that maintain sanitary connections inside and outside. The body material for the valve can range from Epoxy coated iron to Nylon 11 coated iron to Bronze, 304SS, and 316SS.
Refineries
The butterfly valve is commonly found in refineries. These would typically use the more “high end” High-Performance valve with Steel Bodies, or the Triple Offset design that is “Fire Safe” and bubble tight. Many applications involving water use the resiliently seated version.
Ship Building
Because of their high durability in saltwater, butterfly valves are commonly used in ships where ABS-approved materials are selected. This type of valve effectively creates a water-tight shutoff in the piping system of a ship to prevent any flow in the pipe. Their small size also allows them to be used in those tight spaces that are common aboard the ship.
Some of the Benefits That Our Customers Enjoy Are
Installation issues
The more detailed the installation environment provided before the inquiry, the more accurate the product recommendations and installation suggestions can be.
Troubleshooting
We have the skills and knowledge to analyze, diagnose, and solve problems encountered when using valves.
Maintenance
Regular maintenance and repairs (such as cleaning, inspection, and lubrication of valve parts, etc.) performed by professionals can reduce operating costs. If problems need to be repaired, please contact us. We will provide professional maintenance manuals and remote guidance.
Our certifications
FAQ
As one of the leading butterfly valve enterprises in China, we warmly welcome you to buy API approved butterfly valve from our factory. All products products used in refinery, power plant, petrol chemical and oil&gas industry are with high quality and competitive price.
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