Zhejiang PORO Valve Manufacturing Co., Ltd , established in 1997 with oversea's investment, covered an area of 23186 square meters, is a leading manufacturer & sales in China. Today PORO valve has been widely used in domestic and international large-scale petroleum, chemical, electric power, iron and steel, shipbuilding, water treatment and other fields.
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![Floating Type Ball Valve]()
Floating Type Ball ValveFloating ball valve is a valve with simple structure, easy operation and reliable sealing performance. It is widely used in petroleum, chemical, natural gas, electric power, metallurgy, pharmaceutical and other industries to cut off or...view more -
![Trunnion Mounted Ball Valve]()
Trunnion Mounted Ball ValveIn industrial pipeline systems, it is crucial to choose a valve with excellent performance, stability and reliability. As an efficient control device, the Trunnion mounted ball valve has become the first choice of many industries with...view more -
![Soft Sealing Ball Valve]()
Soft Sealing Ball ValveThe Soft sealing ball valve is a high-performance valve that uses elastic sealing materials (such as PTFE or rubber) as seals, with excellent sealing performance and corrosion resistance.view more -
![Double Ball Valve]()
Double Ball ValveDouble Ball Valve is a specially designed ball valve, the core feature of which is the use of two ball structures, through the unique sealing and flow channel design, to achieve higher sealing performance and lower flow resistance.view more -
![Three Way Type Of Ball Valve]()
Three Way Type Of Ball ValveThree-way ball valve is a multi-channel valve with an L-shaped or T-shaped flow channel inside the valve body. The connection and disconnection between different channels are controlled by rotating the ball.view more -
![Fully Welded Ball Valve]()
Fully Welded Ball ValveA fully welded ball valve is a ball valve whose valve body and pipeline are connected by welding. Its valve body is made of integral forging or steel plate welding.view more -
![Hard Face Sealing Ball Valve]()
Hard Face Sealing Ball ValveThe hard-sealed ball valve is a high-performance valve with a metal sealing structure and excellent high-temperature resistance, high-pressure resistance and wear resistance.view more
Why Choose Us
Our Product
Gate valve, Globe valve, Check valve, Ball valve, Butterfly valve and slab gate valve etc. are our products range covered different materials of CS, LTCS, SS, DSS, ALLOY S etc. and standards of ANSI, DIN, BS, JIS, and GB etc.
Quality Assurance
We have 100% quality guarantee to customers. We will be responsible for any quality problem.
Production Market
PORO's products are exported to ASEAN, Europe, South America, Middle East, Africa and so on. In the past, the annual business volume was as high as 40 million RMB.
Rich Experience
Since the establishment of the company, we have focused on production. Our company has many years of production work experience. The concept of customer-oriented and win-win cooperation makes the company more mature and stronger.
Durability
One of the most remarkable pros of ball valves is their durability. They are well-known for their capacity to serve without a glitch under regular maintenance. Plastic ball valves surpass their metal counterparts when it comes to durability, because there are no issues like rust and corrosion are non-existential.
Easy maintenance
Ball valves do not demand much in terms of maintenance. Under conducive conditions, a single valve can function for years. Repairs do not cost much, and replacements are easily available, thanks to the non-stop demand for ball valves.
Easy operating mechanism
The ball valve's design allows for easy installation and repair work. The clever design makes the functioning easy without having to worry about side loads, which is often a problem with butterfly valves.
Efficiency
Ball valves are the first choice for applications that require a controlled flow. They are leakproof and open and close at lightning speed, making them a top choice for emergency operations.
Safety
High-quality ball valves are extremely dependable for functioning with high pressure and high-temperature flows. They provide safe service under extreme industrial conditions.
Versatility
Ball valves can be used for a wide range of applications, including gas, oil, water, and steam. They are available in different materials, sizes, and designs to suit various applications.
Minimal pressure drop
Ball valves have minimal pressure drop compared to other types of valves. This means that they do not cause significant pressure loss in the pipeline, which helps to maintain the efficiency of the system.
Low torque requirements
Ball valves require low torque to operate, which makes them easier to handle. This also reduces wear and tear on the valve components, resulting in a longer lifespan.
Technical Parameters
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Nominal diameter |
DN15-DN600 |
|
Pressure level |
PN10-PN40 (or customized according to customer needs) |
|
Applicable temperature |
-46°C to 180°C (depending on the sealing material) |
|
Valve body material |
Cast steel, stainless steel, carbon steel, alloy steel, etc. |
|
Sealing material |
PTFE, RPTFE, PEEK, DEVLON, VITON, etc. |
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Connection method |
Flange, thread, butt welding, etc. |
|
Operation method |
Manual, pneumatic, electric, hydraulic |
Application of Ball Valve
Plumbing Systems: In residential plumbing, ball valves are commonly used to control the flow of water to various fixtures such as sinks, toilets, and showers. Their ability to provide a tight seal ensures there are no leaks, making them ideal for home use.
Heating Systems: Ball valves also find application in house heating systems. They help regulate the flow of water or steam to radiators or underfloor heating systems. Their rugged design allows them handle high pressure ratings that often exist in those systems, thus ensuring reliability over long periods.
Garden Irrigation: Ball valves control the flow of water into different zones within garden irrigation systems. This is to enable homeowners to efficiently manage watering schedules so that every part of the garden receives adequate amounts of moisture.
Oil and Gas Industry: In the petroleum industry, the job of regulating crude oil as well as natural gas flow through pipelines is handled by ball valves. The fact that they can function in such tough conditions and also be under high pressure makes them an integral part of this field. Ball valves guarantee that operations are done efficiently and safely, reducing chances of leaks which would destroy the entire pipeline system.
Chemical Processing: In chemical processing plants, the flow of different chemicals is controlled by ball valves. Their materials can be selected to be resistant to corrosion, thus enhancing their longevity and safety. Ball valve’s accuracy and dependability aid in maintaining required flow rates and levels of pressure in chemical processes and reactions.
Food and Beverage Industry: In the food and beverage industry, sanitary ball valves are utilized for handling the flow of liquids, such as water, juices and dairy products. These valves are made to meet stringent hygiene standards so as not to have any contamination. Their designs which are easy to clean and can provide a perfect tight seal make them ideal for use in food processing plants that require packaging.
Pharmaceutical Industry: Precise control of fluids in medicine manufacturing by the pharmaceutical industry depends on ball valves. The cleanliness standards that must be met for these valves are stringent to prevent contamination. They are reliable and easy to use and this makes them ideal for applications that need tight regulation of flow rates in different control applications.
Water Treatment Plants: The flow of water through various stages of the treatment process in water purification plants is controlled by ball valves. They are responsible for regulating the inflow of raw water, managing flows through filtration systems, controlling addition of chemicals and ensuring an effective distribution of treated water.
Components of Ball Valve
Valve Housing
The valve housing, or body, encloses all internal components of the ball valve. It provides a secure, sealed environment for the ball, ensuring accurate control of fluid flow through the valve.
Ball
The ball within a ball valve is a sphere with a central hole known as the bore. The bore serves as the passage for fluid flow when it aligns with the valve's flow path. If the bore is perpendicular to the flow direction, it restricts the flow. Ball valves may feature either solid or hollow balls. A solid ball maintains a consistent opening diameter, promoting smooth and constant fluid flow. Conversely, a hollow ball, with its internal cavity, allows for higher flow rates but can create turbulence and increased velocities.
Shaft
The shaft connects the ball to the control mechanism, enabling rotation of the ball. This rotation aligns the ball with the flow path to allow fluid passage or positions it perpendicular to block the flow. The shaft includes seals like O-rings and packing rings to prevent fluid leakage around the shaft.
Bonnet
The bonnet extends from the valve housing and encases the shaft and its packing, especially in high-pressure and high-temperature applications. It may be welded or bolted to the body and is typically constructed from sturdy metal.
Seat
Ball valves have two seats, usually made from soft materials such as PTFE (Teflon) or elastomers. These seats create a tight seal around the ball when the valve is closed, preventing leaks by forming a barrier between the ball and the valve body. The upstream seat seals against pressure, while the downstream seat prevents leakage to the atmosphere.
Handle
The handle or lever is connected to the ball and allows the operator to manually rotate the ball within the valve body. The quarter-turn motion of the handle opens or closes the valve.
Types of Ball Valve
Floating Ball Valve: In a floating ball valve, the ball is held in place by two floating seats. The ball is free to move, allowing it to seal against the seats when the valve is closed, ensuring a tight shut-off. This type of ball valve is suitable for low to moderate-pressure applications.
Trunnion Ball Valve: Trunnion ball valves have a fixed ball supported by trunnion bearings or trunnion blocks. The trunnions help support the weight of the ball, making it suitable for high-pressure and large-diameter applications. Trunnion ball valves offer improved sealing and reduced operating torque compared to floating ball valves.
V-Port Ball Valve: V-port ball valves have a V-shaped ball that creates a precise flow control by adjusting the position of the ball in relation to the flow path. The V-port design allows for better control over flow rates and is commonly used in applications where precise throttling is required, such as in control systems.
Three-Way Ball Valve: Three-way ball valves have three ports, allowing the flow to be diverted between two different flow paths. This type of valve can be used to control the flow direction, mix fluids, or isolate one line while directing flow through another. Three-way ball valves are commonly used in applications where flow diversion or mixing is required.
Multi-Port Ball Valve: Multi-port ball valves have more than three ports, typically with a T- or L-shaped configuration. These valves provide multiple flow paths and can be used to control the flow between multiple lines or direct flow to different outlets. Multi-port ball valves offer versatility and are commonly used in complex piping systems.
Cavity-Filled Ball Valve: Cavity-filled ball valves have a cavity or cavity-fillers in the ball to prevent the accumulation of fluid in the cavity when the valve is in the closed position. This design helps reduce the risk of fluid contamination or solid buildup, making it suitable for applications where cleanliness is critical, such as in food and pharmaceutical industries.
Cryogenic Ball Valve: Cryogenic ball valves are specifically designed to handle extremely low temperatures, typically below -50°C (-58°F). These valves are constructed with materials and components that can withstand the severe cold conditions and maintain proper sealing even at low temperatures. They are commonly used in industries such as LNG (liquefied natural gas) processing and storage.
Packaging and Shipping
Our Certificates
FAQ
As one of the leading ball valve manufacturers and suppliers in China, we warmly welcome you to buy high quality ball valve made in China here from our factory. For customized service, contact us now.
ball valve, Soft Sealing Ball Valve, Double Ball Valve
