Jiangxi Richer Machinery Manufacturing Co.,Ltd
Which is professional grey cast iron and ductile cast iron manufactuer.
Why Choose Us
Advanced Technology
We have advanced equipment, such as automatic molding line.
Certificates
Won a honorary title of high-tech enterprise of China in 2023.
Strict Control
Our company has strong technical strength,strict quality process control, perfect production and testing equipment.
One-stop Solution
Providing technical support, troubleshooting, and maintenance services.
Small flow resistance. The medium channel inside the valve body is direct, the medium flows in a straight line, and the flow resistance is small.
Cast iron boiler check valve is a kind of valve used to control the one-way flow of media, its main role is to prevent media back flow, to ensure the normal flow direction of media.
Cast iron butterfly valve is a new type of pipe control valve. It uses butterfly rotation to control the medium flow. It has the advantages of light weight, good sealing and easy operation.
The ductile iron butterfly valve stands as a cornerstone in fluid control and regulation within various industries.
Cast iron spheroids, usually referred to as nodular cast iron spheroids, have a variety of uses and functions.
The 4 cast iron check valve is meticulously crafted using high-quality cast iron materials and advanced manufacturing techniques.
The API 600 gate valve is meticulously crafted to meet the American Petroleum Institute (API) Standard 600 specifications, ensuring superior quality and performance.
Simple construction, small size and light weight: This makes the cast iron ball valve easy to install and suitable where space is limited.
The function of the foot valve is to ensure the one-way flow of liquid in the suction pipe, so that the pump can work normally;
Advantages of Ductile Iron Butterfly Valve
Durability
The robust ductile iron construction offers long-lasting performance and resistance to wear.
Efficiency
The streamlined design and quarter-turn operation enable quick and precise fluid control.
Reliability
High-quality sealing technology ensures leak-proof performance and enhanced safety.
Versatility
Suitable for a broad spectrum of applications, making it a versatile solution for fluid control needs.
The ductile iron butterfly valve stands as a cornerstone in fluid control and regulation within various industries. Combining robustness with efficiency, this valve is designed to handle a wide range of pressures and temperatures, making it a versatile choice for diverse applications.
Crafted from high-quality ductile iron, this butterfly valve offers superior strength and durability. The ductile iron construction ensures resistance to corrosion and wear, making it suitable for both indoor and outdoor installations. Its streamlined design minimizes flow resistance, allowing for efficient fluid control.
Ductile Iron Wafer Butterfly Valve: An Overview
A butterfly valve is a type of valve that is used to regulate the flow of fluids in a pipeline. It gets its name from the shape of the disc, which is similar to that of a butterfly. The disc is mounted on a shaft and rotates to control the flow of fluid. Butterfly valves are commonly used in a variety of applications, including HVAC systems, water treatment plants, and chemical processing plants.
What Is A Ductile Iron Wafer Butterfly Valve?
A ductile iron wafer butterfly valve is a type of butterfly valve that is made from ductile iron and is designed to be mounted between two flanges. It is called a wafer valve because it is designed to fit between two flanges without the need for additional bolts or nuts. The valve is held in place by the flanges themselves.
Ductile iron is a type of iron that has been treated with small amounts of magnesium and cerium to improve its strength and ductility. Ductile iron is commonly used in applications where high strength and durability are required, such as in the construction of pipes, valves, and fittings.
Features Of Ductile Iron Wafer Butterfly Valves
Ductile iron wafer butterfly valves offer several features and benefits that make them an attractive choice for many applications. Some of these features and benefits include:
- Easy Installation: Ductile iron wafer butterfly valves are designed to be easy to install. They do not require additional bolts or nuts, which means that installation can be completed quickly and easily.
- Low Cost: Ductile iron wafer butterfly valves are relatively inexpensive compared to other types of valves. This makes them an attractive option for applications where cost is a significant factor.
- High Strength and Durability: Ductile iron is a strong and durable material that can withstand high pressures and temperatures. This makes ductile iron wafer butterfly valves suitable for use in a wide range of applications.
- Corrosion Resistance: Ductile iron is resistant to corrosion, which makes ductile iron wafer butterfly valves suitable for use in corrosive environments.
- Low Maintenance: Ductile iron wafer butterfly valves require little maintenance, which makes them a low-maintenance option for many applications.
Applications Of Ductile Iron Wafer Butterfly Valves
Ductile iron wafer butterfly valves are suitable for use in a wide range of applications, including:
- HVAC Systems: Ductile iron wafer butterfly valves are commonly used in HVAC systems to regulate the flow of air.
- Water Treatment Plants: Ductile iron wafer butterfly valves are used in water treatment plants to regulate the flow of water and other fluids.
- Chemical Processing Plants: Ductile iron wafer butterfly valves are used in chemical processing plants to regulate the flow of chemicals and other fluids.
- Oil and Gas Industry: Ductile iron wafer butterfly valves are used in the oil and gas industry to regulate the flow of oil, gas, and other fluids.
- Food and Beverage Industry: Ductile iron wafer butterfly valves are used in the food and beverage industry to regulate the flow of food and beverage products.
Types Of Cast Iron Butterfly Valves
Wafer Type Butterfly Valve
With a Wafer valve, a longer bolt or threaded rod is used that passes right through both flanges and the valve. This pulls the flanges together which holds the valve in place.
The Wafer type Butterfly Valve is placed between pipe flanges, and the flange bolts surround the valve body. The Wafer Type Butterfly Valve is suitable for most flanges (including Table E, PN16 and Ansi150). If either side of the valve needs maintenance, then the entire line must be shut down.
Lugged Butterfly Valve
Lugged butterfly valves have threaded lugs on the valve body. The flange holes align with the threaded lugs, meaning that flanges can be bolted directly to the valve
The Lugged Butterfly Valve has threaded lugs on the periphery of the valve body to provide passages for bolt holes that match with those in the flanges. This design enables the disconnection of one side of the line without affecting the other. The Butterfly Valve is classified as a quarter-turn valve. This works like a ball valve for quick shutoff, however, it can open and close incrementally unlike a ball valve.
Valves - Choosing Between Ductile and Cast Iron
Customers from all kinds of industries need valves of all varieties for their high-demand processes. Valves are available in a huge number of materials for any application imaginable. A few of these materials are PVC, carbon steel, stainless steel, cast iron, and ductile iron. In this post we will focus on two of those materials: ductile iron and cast iron. The argument of "ductile vs. cast iron valves" has been going on for decades, as not everyone knows the differences.
Luckily, comparing valves made of ductile iron and cast iron is simple, as these materials have just a few major differences. We will outline properties of both materials and then go through the pros and cons of each. By the end of this blog post, you will be an iron expert!
Cast iron (also known as gray iron) is a type of metal that has been in use for hundreds of years. It is an alloy made from 96%-98% iron, 2%-4% carbon, and small amounts of silicone. It has impressive temperature tolerance, with some cast iron capable of handling temperatures over 2100F (1150C). When it comes to pressure, cast iron's strength depends on its pressure class. The two most common are class 125 and class 250. At less extreme temperatures, class 125 cast iron flange is rated for pressures between 150 and 200 psi. Class 250 cast iron is a bit tougher, with pressure ratings from 300 to 500 psi. These pressures can vary by end type.
Cast iron is strong and will usually go undamaged even after going through intense vibrations. The main drawback of cast iron valves is that they are not very ductile at all. Virtually any bending will cause cast iron to crack and become useless. One great quality of cast iron is that it is not very expensive. As far as metals go, cast iron is usually the most economical option, which makes it a solid alternative for people on a budget.
The second material we're looking at is ductile iron. Ductile iron is a more modern iron alloy that is made with nodule-shaped graphite. This gives the material excellent ductility, so it will not necessarily break when bent. The temperature limit is a bit lower than cast iron, but it is still quite high at 1350F (730C). When it comes to pressure, ductile iron valves also use pressure classes: 150 and 300. At standard outdoor temperatures, class 150 ductile iron keeps a seal up to 250 psi. Class 300 can stand up to pressures as high as 640 psi.
Ductile iron has excellent corrosion resistance, tensile strength, and yield strength. Unlike cast iron, ductile iron does not break when it is bent, so it is more suited for high demand applications. Ductile iron is a strong and reliable material for pipes, fittings, and valves. One drawback is price. Ductile iron is typically more expensive than cast iron due to its more complicated chemical makeup. If your application requires a tougher material, however, you may need to spend a little more.
Now that we've looked at both options individually, we will compare and contrast ductile and cast iron valves. Hopefully, this will help you decide which is best for you! We will compare these materials on durability, ease of installation, and price, so you can learn the most important details. For some more technical differences, check out this helpful article.
Cast Iron: Cast iron is a strong material that can handle higher pressures than just about any plastic. When rated pressure of a cast iron valve or pipe is exceeded however, it can bend and crack. Cast iron has virtually zero ductility, meaning it is rigid and will crack if bent. Cast iron will also rust over time, so regular maintenance must be done to keep your valve clear of corrosion.
Ductile Iron: Ductile iron also has impressive structural integrity. It can handle high pressures and temperatures without flinching. Thanks to its ductile nature,
this material is also less likely to crack when bent. Ductile iron will also rust over time, but not as easily as cast iron.
Cast Iron: This material gives the user many options when it comes to installation. Cast iron valves are typically bolted using flanges. Welding is difficult, but not impossible. Our cast iron valves are available with flanged ends, as this is a great method for high or low pressure applications.
Ductile Iron: Ductile iron, because of its structural similarities to cast iron, gives the user many of the same installation options. Welding is not recommended,
but bolting with the use of flanges is still the best option for most applications.
Cast Iron: Cast iron valves, due to their simpler manufacturing process, will save you a significant amount money compared to ductile iron valves. If you do not need the added benefits that ductile iron provides, cast iron is the smart move.
Ductile Iron: Ductile iron is the more expensive option, but for good reason. It has properties that give it clear advantages over cast iron in many situations.
How to Operate Different Types of Butterfly Valves
Like other types of valves, butterfly valves come in a wide range of materials. From stainless steel to PVC, the choices are basically limitless. A few materials are especially popular though, so let's take a look at them!
Pvc and cast iron for different types of butterfly valvesPVC is one of the most common plastics for butterfly valves. A few qualities make them ideal for many moderate-to-low intensity applications. First, they are lightweight while still possessing impressive structural integrity. Second, they have wider ranges chemical compatibility than most metals. Finally, PVC and CPVC are both inexpensive compared to their metal counterparts. Check out our wide range of PVC butterfly valves or CPVC butterfly valves by clicking the links!
Cast iron is a go-to metal for butterfly valves. Cast iron has considerably more structural integrity and temperature range than PVC or CPVC, which makes it a great option for industrial processes that require something tougher. Among metals, iron is the inexpensive option, but this does not make it ineffective. Cast iron butterfly valves are versatile, which makes them perfect for a wide range of applications.
Method of operation also distinguishes butterfly valves from each other. The two manual methods are handles and gear wheels. Automated actuation is also possible, depending on the model! Lever-operated butterfly valves use a quarter-turn lever, often with a locking mechanism, to turn the valve's stem, thus opening and closing it. This is the simplest form of BF valve operation, but it is impractical and difficult for larger valves.
Gear wheel butterfly valveGear wheel operation is another common method for opening/closing butterfly valves! A hand-operated wheel rotates a gear, attached to the stem, to move the disc. This method is used for all different types of butterfly valves, both big and small. By using a mechanically intuitive method to turn the disc instead of just human strength, gear wheels make butterfly valve operation even easier.
The final method of butterfly valve operation, typically reserved for high demand industrial applications, is actuation. This is automated opening and closing, which is necessary with large butterfly valves. Actuators only fit on specially-made valves that meet certain mounting standards.
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