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Cast Steel Floating Ball Valve
Bergamo Valve has strong technical force, advanced production technology, stable quality, making contribution to the development of chemical, petroleum, our smelting, electric power industry. Over the years, always adhere to "quality first, reputation first, prompt delivery, and thoughtful service" purposes, products sell well all over the country, by the user praise. All products are used GB, HB, API, BS, DIN, JIS and other domestic and foreign advanced standards of production,according to the terms of use,users can choose different fluorine materials,also undertake various non-standard valves, equipment design and manufacture, anti-corrosion equipment will give your business to provide the ideal, so bring your business significant economic benefits. Our products are widely used in petrochemical, metallurgy, electric power, papermaking, pharmaceutical, construction and other industries and the long-distance pipeline project.
Why Choose Us
Our Factory
Bergamo valve has strong technical force, advanced production technology, stable quality, making contribution to the development of chemical, petroleum, our smelting, electric power industry. Over the years, always adhere to "quality first, reputation first, prompt delivery, and thoughtful service" purposes, products sell well all over the country, by the user praise.
Product Application
DIN, JIS and other domestic and foreign advanced standards of production,according to the terms of use,users can choose different fluorine materials,also undertake various non-standard valves, equipment design and manufacture, anti-corrosion equipment will give your business to provide the ideal, so bring your business significant economic benefits. Our products are widely used in petrochemical, metallurgy, electric power, papermaking, pharmaceutical, construction and other industries and the long-distance pipeline project.
Our Service
Good service(100% response and 24 hours on line ). Competitive price (Accuracy control the cost to achieve the best price). Advanced Technology ( Rich experience design and technology support). Excellent quality control (strictly follow the API/CE/ISO system and procedure). Perfect feedback (99% good favorable rate from customers).
Our Certificate
ISO9001, CE, API 6D, Fire certificate.
Related Product
The electric ball valve has a simple structure and is only composed of a few parts, saving data consumption; It is small and light with small driving torque, pressure regulating valve, operate simple and agile, and can be opened and closed quickly by rotating 90 °; At the same time, it also has good flow regulating and sealing performance. It is the main valve that used in the application of the field that is large-and-middle-sized and medium-and- low-pressured.
In case of fire during the use of valve, the seat ring material like PTFE or other non-metal materials will be decomposed or damaged under high temperature may cause higher leakage. The fireproof seal ring between ball and seat so that after the valve seat is burn, the medium will push the ball rapidly towards the downstream metal seal ring to form the auxiliary metal to metal sealing structure, that can effectively control valve leakage. Beside that the middle flange sealing gasket is made of metal wound gasket can ensure sealing even under the high temperature.
Temperature rang for cryogenic Ball Valve : -50~一196°C, The extend stem size according to customer request. The body cavity self pressure relief function at the valve seat to prevent the body cavity when the valve under abnormal temperature rise to retaining medium from damaging. On the upper part of the valve stem cap with the he seal on the valve stem is designed to reduce the influence of temperature change on the packing.
Cryogenic Extension Ball Valve
The cryogenic ball valves are always for cryogenic floating ball valves and cryogenic trunnion ball valves.If the ball valves the temperature higher than -50℃, the long neck structure is not designed. And if the ball valves with temperature lower than -50℃, the neck length can designed accord to standard requirements or can accord to user requirements.
For avoiding the wrong operation with manual back to started position quickly. Two-pieces or three-pieces structure are simple and easy to maintain, with full port and low flow resistance. Stainless steel ball material, reduce the parts wearing and the service. Life can be longer. PTFE sea or packing can be good sealing performance, when fully opened or fully closed will not easy to be medium corrosion or friction damage.
Valves are manufactured in 2 pieces bolted body, ball valves could be offfered as full or reduced bore, design for maximum rigidity against the pipeline thrust, valves can made from forged components or bar stock. Bolted body constructions can be easy service and maintenance opration on site,Valves can supply with lever operator,with gear box or bare stem on as customer request. And standard floating ball valves have below features.
Floating ball valves are in 2 pieces bolted body. Valve can be full and reduced bore, maximum rigidity against pipeline thrust design, Bolted body constructions allow easy service and maintenance operation on site, valve made from forged components or bar stock, Bolted body constructions can be for easy service and maintenance operation.Valves can supplied with lever operator,with gear box or bare stem on customer request.
Segment Ball Valves are mainly primarily designed for flow control, and it also be used for shut-off operation. The notched port on the segment ball have strong shear stress to cut media with fibers and particles. Segment Ball Valve is a good general control valve for industrial markets including Pulp and Paper, Refinery, Chemical, and Petrochemical Industries.
The ball valve has the same action of rotating 90 degrees, but the difference is that the cock body is a sphere with a circular through hole or channel passing through its axis. The ball valve is mainly used to cut off, distribute and change the flow direction of the medium in the pipeline. It only needs to rotate 90 degrees and a small torque can be closed tightly. The ball valve is most suitable for use as a switch and shut-off valve, but recent developments have designed the ball valve to throttle and control the flow.
What Is Cast Steel Floating Ball Valve
Cast steel floating ball valves refer to floating ball valves that have cast steel valve body. These valves are mainly designed for low pressure services with a flexible temperature range. It provides a wide variety of this series of ball valves manufactured standards. They are usually furnished with flanged end connection. Due to the low pressure ratings and small sizes, the torque to open or close the valve is not big hence manual operation(either lever or gear) is applied. Generally speaking, the cast steel floating ball valve is mainly used for on-off applications as well as minor throttling purpose.
Advantages of Cast Steel Floating Ball Valve
Tight Sealing
One of the key benefits is the valve's ability to provide tight sealing, which ensures that there are no leakages or seepages from the system. This feature makes these valves ideal for use in pipelines and other systems where fluid control is essential.
Durability
Another advantage of cast steel floating ball valves is their durability. Made with high-quality materials, these valves can withstand harsh environments and tough conditions without losing performance capabilities. Their robust design also ensures that they require little maintenance, reducing downtime and repair costs.
Excellent Flow Control Capabilities
Cast steel floating ball valves also offer excellent flow control capabilities. With a simple turn of the handle, users can easily regulate liquid or gas flow through the pipe system accurately. Additionally, these types of valves have low torque requirements compared to other valve types, making them easy to operate even at high pressure levels.
Versatile
Cast steel floating ball valves are versatile enough to handle different applications effectively. They come in various sizes and configurations suitable for both general-purpose and specific industry needs such as petrochemicals processing plants or oil refineries.
Cast steel floating ball valves come in various types, each designed to cater to specific needs. Here are some of the different types of cast steel floating ball valves:
Two-piece Body Type
This type of valve has two separate pieces that are bolted together, making it easy to disassemble and maintain.
Three-piece Body Type
The three-piece design allows for easier maintenance and repair as you can easily remove the center section without disturbing the piping connections.
Top Entry Type
With this type of valve, the top cover is removable, allowing access to internal parts for maintenance or replacement without removing it from the pipeline.
Flanged End Connection Type
This is a common valve with a flange welded on both ends that connects directly onto pipelines carrying fluids such as water and steam.
Butt-weld End Connection Type
Suitable for high-pressure applications requiring a permanent weld between pipe and valve ends.
It's essential to select the right cast steel floating ball valve based on your application requirements, including pressure ratings, fluid compatibility, temperature ranges, among others.
Components of Cast Steel Floating Ball Valve
The materials used in a cast steel floating ball valve are carefully chosen for strength, corrosion resistance, and compatibility with the specific fluid it will control. Typical components include:
Valve Body
The valve body is the main housing of the valve and is usually made from materials such as carbon steel, stainless steel, alloy steel, or cast iron. The choice of material depends on factors such as pressure rating, temperature range, and chemical compatibility with the fluid.
Ball
The ball, the heart of the valve, directly controls fluid flow. It's typically made from durable, corrosion-resistant metals like stainless steel, brass, or bronze. Coatings or surface treatments may be added to enhance wear resistance and sealing performance further.
Seats
The valve seats provide the sealing surfaces for the ball when the valve closes. They're typically made from resilient, wear-resistant materials like ptfe (polytetrafluoroethylene), peek (polyetheretherketone), or reinforced elastomers such as viton or epdm. These materials ensure a tight seal and resist chemical attack.
Stem
The stem connects the actuator (lever or other control mechanism) to the ball, transferring the rotational motion needed to open or close the valve. It's made from corrosion-resistant alloys to ensure reliable operation in harsh environments.
Seals And Packing
Seals and packing materials are used to prevent leakage around the stem and other moving parts of the valve. These components are often made from elastomers such as nitrile, viton, or epdm, as well as ptfe-based materials, depending on the application requirements.
Actuator
The actuator controls the valve's opening and closing. It can be manual (e.G., handle, lever) or automated (e.G., gearbox, pneumatic or electric motor). The actuator type depends on the desired level of control and the specific application.
How Does a Cast Steel Floating Ball Valve Work?
Cast steel floating ball valves are the most common type of valve and are used in a variety of applications. They are named for the large balls that float on the liquid, allowing it to flow through the valve smoothly. Cast steel floating ball valves come in two types: manual and semi-automatic. Manual valves require manual operation, while semi-automatic valves can be operated by either hand or an automated system.
The basic principle behind a cast steel floating ball valve is simple: A large ball floats on a liquid and allows it to flow through the valve smoothly. The ball's weight keeps it down in the center of the chamber, which minimizes drag on the liquid and helps prevent cavitation (the formation of bubbles). This makes cast steel floating ball valves perfect for applications where smooth flow is essential, such as water systems or pipelines.
One main advantage of cast steel floating ball valves is their versatility. They can be fitted with a variety of fittings, making them suitable for a wide range of applications. Additionally, they are relatively easy to maintain and operate, making them an ideal choice for small businesses or homeowners seeking an easy solution to their plumbing problems.
Cast steel floating ball valves are versatile and can be used in various applications. One of the main factors to consider when deciding whether to use a cast steel floating ball valve is the fluid or gas being transported.
In high-pressure and high-temperature situations, such as in chemical plants or oil refineries, cast steel floating ball valves are often preferred due to their durability and ability to withstand extreme conditions. They are also commonly used in pipelines carrying natural gas, crude oil, and other corrosive fluids because they have a low risk of leakage and can handle large volumes of flow. Another situation where cast steel floating ball valves may be useful is when there is a need for frequent operation. Their simple design makes them easy to operate manually or with automation equipment.
When choosing whether to use cast steel floating ball valves, it's important to consider the specific needs of your application. Factors like pressure, temperature, fluid type and frequency of operation will help determine if these types of valves are the best choice for your project.
How to Lubricate a Cast Steel Floating Ball Valve
Lubricating a cast steel floating ball valve is a straightforward process that helps ensure smooth operation and prevents sticking or seizing of the valve's components. Here's how you can lubricate a cast steel floating ball valve:
Prepare The Area
Turn off the water supply or isolate the section of the piping where the cast steel floating ball valve is. This prevents accidental operation while you're working on the valve.
Inspect The Valve
Before lubricating, inspect the cast steel floating ball valve. Please ensure no visible obstructions, debris, or dirt might interfere with its operation.
Clean The Valve
Use a rag or cloth to remove dirt, dust, or debris from the valve's exterior. This step helps ensure that no contaminants get trapped in the lubricant.
Apply Lubricant
Choose a silicone-based or water-based valve lubricant. Avoid using oil-based lubricants, which can attract dirt and debris over time. Apply a small amount of lubricant onto the valve's handle or lever. You can also apply a light coating to the stem and other moving parts. Spread the lubricant evenly over the surfaces by gently turning the valve handle or lever back and forth. This helps distribute the lubricant and ensures it reaches all the necessary components.
Step-by-Step Breakdown of the Cast Steel Floating Ball Valve Manufacturing Process
The manufacturing of a cast steel floating ball valve involves many detailed and precise steps that are very important in making sure the final product is as per strict quality standards. Here is an expanded description of the key stages involved:
Design
In the manufacturing process, designing is the first stage. A blueprint of the valve is created by engineers using computer-aided design (cad) software. This design shows dimensions of the valve and specifies tolerance levels to ensure all parts fit seamlessly with one another. The cad program allows for accurate adjustments and simulations to optimize performance before production begins.
Material Preparation
The subsequent step after completion of design is preparing raw materials. Raw material preparation often entails cutting metallic rods into specific sizes, which metal type such as stainless steel or brass can be used depending on requirement or standard, according to each part's size needed.
Forging Or Casting
These prepared materials are then turned into valve bodies through forging or casting methods. In case of forging, the metal is heated to high temperatures where it takes shape using a hammer or press respectively while casting process entails pouring molten metals into pre-shaped molds defining shape of valve body respectively; both moldings have intention to introduce a strong and durable component acting as backbone for any valve.
Trimming And Blasting
After forging or casting activities, there may be some excesses on occasions or flaws in these valves' bodies; thus trimmings eliminates them whereas sand blasting smoothens surfaces by adoption fine abrasive materials impacting against them only. It ensures that they have clean finishing such that they can work properly without facing any issue regarding what they look like.
Machining
Precise machining is vital for holding exact tolerances specified during designing stage which usually requires drilling, lathing and milling processes done in cnc machines, all manufactured parts being so perfect up to details since cnc machines communicate exact dimensions according to specifications thereby ensuring proper fitting when this system is ready for complete assembling.
Heat Treatment And Plating
Heat treatment is then carried out on the valve components to enhance their material properties, by subjecting them to specific temperature changes and cooling cycles, thus modifying microstructure thereby improving strength and durability of material. After heat treatment, a coating such as nickel plating is applied over it because corrosion resistance must be added if valve has to survive harsh environmental conditions.
Assembly
During the assembly phase, all the machined parts are brought together with each other. This usually involves placing a ball inside a valve body, fixing seals in place and putting on end caps; therefore this particular stage requires precision as well as care since valves need everything to line up properly otherwise they will not work smoothly at all.
Testing And Quality Control
The final step in manufacturing process is rigorous testing and quality control where each valve is subjected to several tests so as to satisfy customer specifications along with industry standards that prevail within this sector but mainly pressure tests would be performed for detecting any leak or confirming whether valves can withstand operational pressures they were meant for during design phase; hence any product that will fail those tough tests cannot be delivered abroad.
Our factory
Bergamo Valve has strong technical force, advanced production technology, stable quality, making contribution to the development of chemical, petroleum, our smelting, electric power industry. Over the years, always adhere to "quality first, reputation first, prompt delivery, and thoughtful service" purposes, products sell well all over the country, by the user praise. All products are used GB, HB, API, BS, DIN, JIS and other domestic and foreign advanced standards of production,according to the terms of use,users can choose different fluorine materials,also undertake various non-standard valves, equipment design and manufacture, anti-corrosion equipment will give your business to provide the ideal, so bring your business significant economic benefits. Our products are widely used in petrochemical, metallurgy, electric power, papermaking, pharmaceutical, construction and other industries and the long-distance pipeline project.
FAQ
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