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High Quality Welded Ball Valve Factory

ABOUT US

Company Profile

Zhejiang Naishi Valve Co., Ltd. specializes in the manufacturing of a comprehensive range of Fully Welded Ball Valve and Fully Welded Ball Valve factory, adhering to international standards such as ASME, ANSI, EN, BS, DIN, API, GB, and GOST. Our product dimensions span from DN10 to DN1600, encompassing a diverse portfolio that includes track ball valves, forged steel high-pressure gas ball valves, fully welded ball valves, floating ball valves, fixed ball valves, high-temperature wear-resistant ball valves, DBB double ball valves, and special stainless steel and high-nickel alloy ball valves. Our valves are designed to withstand a variety of conditions, including high temperatures up to 600°C, low temperatures as low as -196°C, and high pressures reaching 4500Lb, ensuring product reliability in the demanding environments.


Leveraging a well-trained team of professionals, solid technical expertise, an efficient management system, and meticulous production management, Naishi Valve is committed to delivering high-quality ball valve solutions for industries such as oil and gas transportation, urban heating, gas, petrochemicals, chemicals, energy, power stations, and metallurgy.
Zhejiang Naishi Valve Co., Ltd.

Ball Valve Production Expert

Industry knowledge

Welded Filter Ball Valve and Welded Ball Valve: High-Performance Valve Solutions by Naishi

At Zhejiang Naishi Valve Co., Ltd., we specialize in the manufacturing of high-quality ball valves, including our Welded Filter Ball Valve and Welded Ball Valve. These valves are engineered to provide reliable flow control and filtration in a wide range of industrial applications, particularly in environments where strength, precision, and durability are essential.

Key Features and Benefits of Welded Ball Valves

  • High Strength and Durability: By utilizing advanced welding techniques, Welded Ball Valves offer superior mechanical strength and durability, even in extreme operating conditions.
  • Leak-Proof Design: The welded construction provides a leak-tight seal, making these valves suitable for applications involving hazardous or critical fluids.
  • Customizable Sizes and Configurations: Naishi offers Welded Ball Valves in a wide range of sizes and pressure ratings to meet the needs of various industrial applications.
  • Corrosion and Wear Resistance: The materials used in the construction of welded ball valves are selected for their ability to withstand corrosion, ensuring long-term performance in harsh environments.

Key Features and Benefits of Welded Filter Ball Valves

  • Integrated Filtration: The Welded Filter Ball Valve combines flow control with filtration, eliminating the need for separate filtration equipment, saving space, and reducing system complexity.
  • Enhanced Protection: The built-in filter removes debris and contaminants, protecting downstream equipment like pumps and compressors from damage.
  • Efficient Flow Control: These valves allow precise control of the flow rate while ensuring that only clean fluid is allowed to pass through the system.

Ideal for Harsh Environments: Like the Welded Ball Valve, the Welded Filter Ball Valve is designed to perform in high-pressure and high-temperature conditions, ensuring reliable operation in demanding environments.

Advanced Welding Techniques for Valve Manufacturing

Naishi uses a variety of welding methods to ensure that our valves are of the highest quality. These methods include:

  • Manual Welding: For custom or small batch production, manual welding ensures precision and control over the welding process.
  • Submerged Arc Welding: This technique is used for its deep penetration and high-quality welds, ideal for heavy-duty applications.
  • Plasma Welding: Offering a clean and precise weld, plasma welding is perfect for valves that require high tolerance and accuracy.
  • Fully Automated Welding: For large-scale production, automated welding systems ensure consistency and high throughput.

In addition to these welding methods, torque wrenches are used during the central bolt assembly process to ensure even force distribution and precise alignment of the valve body. This attention to detail guarantees that our valves meet the highest standards of performance and reliability.

Tailored Solutions for Your Valve Needs

At Zhejiang Naishi Valve Co., Ltd., we understand that each industry has unique requirements. Our robust engineering team is capable of developing and manufacturing customized valve solutions based on customer drawings or samples. Whether you need a Welded Filter Ball Valve or a Welded Ball Valve, we work closely with our clients to deliver valves that meet their specific performance, size, and material specifications.

Our ability to adapt and innovate ensures that we can offer valves that provide exceptional performance in diverse and demanding environments.