The eccentric butterfly valve is one of the most popular types of butterfly valves available today. It is one of the most dependable and long-lasting butterfly valves available and is typically utilized in high pressure applications. It is simple to locate one that will meet your demands because it is available in a broad variety of sizes and materials.
Unlike a normal butterfly valve, a Double Eccentric Butterfly Valve is made to operate with low torques and provides a long service life. They are used for many applications, such as water supply and waste water treatment. They have a special design to prevent leakage and are fire-safe.
Double eccentric butterfly valves are also a better choice for applications where pressure is high. Their service life is longer, and they offer good sealing along valve pins even at high temperatures. They are also more economical than gate valves, which are more costly.
Double eccentric butterfly valves can be manufactured in various sizes, from 2 inches to 48 inches. They have a handle outside the body, which makes them easy to install. They also come in various materials, including elastomer, plastic, stainless steel, and carbon steel.
The double eccentricity principle provides a smoother opening and closing, which reduces wear and tear of the seat. The angled position of the disc also lowers the operating torque. This also preserves the sealing surface, which minimizes seat damage.
Butterfly valves operate quickly and with more efficiency than conventional valves. They can be used in tasks like managing fuel, putting out fires, and producing chemicals. They are also affordable, portable, and lightweight. In comparison to traditional valves, they offer significant cost reductions. They can also be purchased with a locking mechanism.
A pipeline's flow can be managed using centerline butterfly valves. They come in a wide range of sizes and varieties. They are typically constructed from cast iron or ductile iron. Their stem is usually made of stainless steel. They can also be ordered with an ANSI B16.5 flange end. They are appropriate for a variety of uses, such as wastewater treatment and power generation. To prevent corrosion, they should be maintained and cleaned before use. They should be kept out of the rain and dry.
Eccentric or concentric butterfly valve discs are both possible. The disc and valve seat are constantly in touch with each other in concentric butterfly valves. The disc obstructs the valve bore when it is closed. The disc causes a pressure drop while it is in the open position.
Originally designed for water shut off applications, the triple offset double eccentric butterfly valve has since evolved into an industry standard. It is used in a wide range of industries, including petrochemical, municipal construction, electrical power, water supply, and fugitive emissions control.
The triple offset eccentric butterfly valve has a number of benefits, including reduced seat and seal wear, zero leakage closers, and a continuous sealing surface. It also offers a unique design that allows for easy operation. This type of valve is often used in high-temperature applications, and it is ideal for petrochemical, oil, and gas industries.
In general, butterfly valves are made from metal, plastic, or elastomeric material. The choice of materials depends on the fluid and the environment in which the valve will operate. They are also referred to by a number of different names, including offset butterfly valve, double offset butterfly valve, and zero offset butterfly valve.
The most common material used for butterfly valve seats is elastomeric material. This material offers excellent wear resistance, thereby increasing the lifetime of the valve.
Butterfly valves are made with simplicity and compactness in mind, in contrast to other valve designs. Since they have fewer moving parts, they experience less wear and have a longer lifespan.
Butterfly valves are not only less expensive, but they are also simpler to produce. They use fewer resources, and because of their straightforward construction, they are simpler to handle and maintain. They can be operated mechanically or manually. Surface protection is another option for these valves, which stops water and other contaminants from entering the valve.
There are numerous sizes of wafer butterfly valve. Both above- and below-ground pipelines can use them. They come in a range of materials as well. Minimum flow resistance is ensured by their streamlined design.
They are typically employed in applications involving water supply. Additionally, they are employed in the water transmission pipeline sector. The material used to create these valves is ductile iron, which is more resilient than cast iron.
Each valve made by the AFC Valve Factory is guaranteed to pass hydrostatic tests. The pressure to be tested for shell and seat tests is typically 1.5 *. We are certain that any valve can be maintained correctly in the water systems by using the tests valve. EN12266 was the preferred standard for us. All products that meet UL or FM standards are UL/FM certified. procedure.
In a typical manufacturing process, the valves are controlled in every manufacturing step. AFC's quality systems have recorded every step, including castings, machining, and coating. Process control can result in a quailed product.
This valve model is the product of 30 years of experience from our team and vast feedback from field workers. Our product is more secure and efficient on the job. Each valve's model is built on various standards. The gate valve could meet EN, AS or UL standards. Double-embroidery butterfly valves are able to comply with EN and AWWA specifications. Each item is subject to its own standard.
There is no doubt that China has the most comprehensive and price-advantageous supply chain. Castings are the biggest price of a butterfly wafer type. China's castings of high quality are getting better each year, however they are priced at an affordable cost. There are many ways to assess the quality and cost. AFC valve is the best choice for finding the balance between quality & price.
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