Your Reliable OEM & ODM Factory for Ball Valve

  • 20 years of ball valve manufacturing experience, 6 CNC lathes, 11 general lathes, more than 50 advanced machining and * equipment including plasma spray welding
  • Compliant with CE, RoHS, and cUPC certifications, ensuring global safety standards
  • A wide range of sizes, materials, and configurations to meet diverse industry needs
  • Cost-effective solutions without compromising on quality
  • 3 times leakage test and free 3rd party QC report provided

We have a design center, technical consultation, valve quality inspection and testing center, and strictly follows the ISO9001 quality system certification standards and 6S on-site management regulations.

Reliable Ball Valves Manufacturer from China

Kozo valve  provides high-performance ball valves for wide industry application, which provides instant shut-off, leak-proof seal, and the highest durability to sustain hostile applications. Our high-performance ball valves are made of stainless steel, brass, bronze, carbon steel, and top-quality plastic material of superior grade for ensuring unparalleled strength, corrosion resistance, and longer performance for any operating condition.

Being a leading OEM & ODM supplier, we are expert designers of ball valves such as stainless steel ball valves and copper ball valves and cast iron valves to meet particular application requirements. Such as water treatment, natural gas, industrial piping, etc. From selecting special materials to adding anti-corrosive properties, custom sizes, or high-technology sealing, we provide customized solutions that enhance safety, efficiency, and reliability in your system.

Since the past 19 years, we have been offering solid and industry-compliant valve solutions for various industries. We serve customers from varied industries, including oil & gas, chemical process, water treatment, and other industrial applications. Plumberstar offers competitive price, precise engineering, and punctual delivery of products. You get a one-stop solution to high-performance ball valve solutions—talk to us now to start!

Ball Valves Manufacturing Types

Zhejiang Kozo valve using precision casting, hot forging and CNC machining to ensure that the products are durable and suitable  products are widely used in chemical industry, petrochemical industry, petroleum, pharmaceutical industry, water treatment, water supply and drainage, municipal engineering, papermaking, mining, power plant, metallurgy, liquefied gas, food industry, machinery and equipment supporting, electronic industry, and it is also a reliable valve supplier in commercial construction and general industrial fields.. We achieve efficient production through automated assembly lines, and provide a variety of surface treatment solutions such as nickel plating and electroplating chrome to improve corrosion resistance and appearance. Whether a mini ball valve or a standard handle ball valve, kozo valve is able to provide reliable and high-quality solutions that are perfect for any installation scenario。

Ball Valves Specifications

Size Available

Kozo valve are available in all the common Q41/Q47 forged steel ball valve, high temperature ball valve, high pressure ball valve, American standard ball valve, Q61/Q67 welded ball valve, Q41/Q47 cast steel ball valve, Q47/Q347 trunnion mounted ball valve, Q941/Q947 electric ball valve, Q641/Q647 pneumatic ball valve, hard seal ball valve,eccentric semi-ball valve, etc. and many more. We can provide custom-size ball valve to fit any given project specific requirement, thereby being able to meet such.

Material Available

Our ball valves are resistant to corrosion and durable. Sealing surface materials include soft seal, hard seal, ordinary hard seal, domestic advanced supersonic spray ceramic, tungsten carbide, N-60, nickel-based alloy, STL carbide. Design pressure ranges from 1.0MPA to 42MPA and 150LB to 2500LB. According to the designs and applications, our ball valves can last for 5 to 10 years and are appropriate for continuous long-term use even under changing pressures and temperatures.

Types Available

Zhejiang Kozo Valve Co., Ltd. mainly produces: ball valves, fully welded ball valves, forged steel trunnion mounted ball valves, forged steel floating ball valves, forged steel trunnion mounted ball valves, cast steel trunnion mounted ball valves, double eccentric half ball valves, eccentric half ball valves, top mounted eccentric half ball valves, forged steel ball valves, etc. The operation modes include: manual, worm gear drive, pneumatic, electric, hydraulic and other products.

Components Available

Kozo all Valves are API6D & API607 certificated. Including two or three way, Trunion / Floating / Top Entry / LNG / one piece / Fully Welded  Ball Valves.  Can be used for Gas Services, Petroleum, Liquefied Natural Gas (LNG), Chemicals, and Hydrogen Energy. Provide OEM and ODM Service, also flow control solutions for you.

Main technical parameters of ball valve

Nominal Diameter (DN) (mm): DN50-DN800 Nominal Pressure (MPa): PN 1.0-32 MPa; ANSI 150-2500 lb Body Type: Two-piece cast body, three-piece forged body, etc. Valve Plug: O-type spherical plug Body Material: Carbon Steel WCB, Stainless Steel 304, 316, 316L Seal Material: PTFE (polytetrafluoroethylene), PPL (para-polyphenylene phthalate), Metal Seal (carbide) Packing: V-type PTFE packing, PTFE-impregnated asbestos packing, asbestos textile packing, graphite packing Connection Type: Flange, Welding Flow Characteristics: Nearly quick-opening Applicable Temperature: PTFE ≤ 180°C; PPL ≤ 280°C; Metal Seal ≥ 300°C

Discover Our Ball Valve Case Studies

Explore real-world applications of our high-performance ball valves in various industries. See how our solutions enhance efficiency and reliability!

Ball valves offer the following advantages

 1. Low fluid resistance. Ball valves offer the lowest fluid resistance of all valve types, and even reduced-diameter ball valves maintain very low fluid resistance.

2. Quick and convenient opening and closing: A simple 90° rotation of the valve stem fully opens or closes the ball valve, making it easy to quickly open and close.

3. Excellent sealing performance. The ball valve seat seal is typically made of elastic materials such as polytetrafluoroethylene, ensuring a secure seal. The sealing force of the ball valve increases with increasing medium pressure.

4. Reliable stem sealing. The valve stem only rotates during opening and closing, making the stem packing seal less susceptible to damage. The sealing force of the stem back seal increases with increasing medium pressure.

5. Since the ball valve only rotates 90° to open and close, it is easy to implement automated and remote control. Ball valves can be equipped with pneumatic, electric, hydraulic, gas-hydraulic, or electro-hydraulic actuators.

6. The ball valve passage is smooth and flat, preventing medium from accumulating, making it suitable for pipeline ball flow.

Custom Finishing of Ball Valve

Kozo valve provides various surface finishes to enhance the appearance and lifespan of your ball valves, offering aesthetic beauty and long-term performance.

Our high-end finishes are paint, sandblasting, chrome plating, brushed nickel plating, matte black, gold plating, and pickling to provide a glossy and customized appearance according to your requirements. You may have the finest quality, professionally treated valve components that improve corrosion resistance and wearability and push the overall design to the next level, both offering form and function in all uses.

Custom Raw Material for Ball Valves

Kozo valve provides high-performance ball valves capable of working in high-pressure and low-pressure, high-temperature, and low-temperature environments. pressure resistance, and long-term durability. With nearly 20 years of experience, we have been delivering robust and industry-compliant valve solutions tailored for various sectors. Ball valve  is suitable for various media such as water, steam, oil, liquefied gas, natural gas, coal gas, nitric acid, acetic acid, oxidizing media, urea, etc., and is widely used in petroleum, chemical, electric power, water conservancy and other industries.

Stainless Steel

Material that is frequently used in high-pressure and industrial settings, stainless steel is a robust, durable, and corrosion-resistant material. Angle valves of stainless steel are commonly employed in oil and gas pipelines, chemical processing, and other hostile environments.

Brass

Brass is frequently used in manufacturing angle valves due to its durability and corrosion resistance. When cost is a concern, brass angle valves are commonly employed in piping systems and other applications.

Bronze

Bronze is an alloy that is resistant to corrosion and is frequently used in structure and marine applications. Bronze angle valves are commonly used in seawater intake systems, marine piping systems, and other applications where corrosion resistance is critical.

Lead Free Copper

Lead-free copper is copper material that does not contain lead. These materials usually contain other alloying elements such as silicon, manganese, and aluminum to improve their performance. Lead-free copper retain the basic properties of copper, such as good conductivity.

Carbon Steel

Carbon steel is a material that is frequently used in industrial and high-pressure applications due to its strength and durability. Carbon steel angle valves are utilized in steam systems and oil and gas pipelines.

High Grade Plastics

High Grade Plastics is a new type of material with superb physical and chemical properties and excellent durability. It is a type of material widely used in current industrial production.

General Process Fabricate for Valves

Kozo valve  always takes the manufacturing process of each ball valve seriously, ensuring that every purchased accessory and material passes quality inspection before entering the warehouse. It also has systematic quality control rules and 100% leakage testing to ensure the excellent quality of the product.

Ball Valve Manufacturer FAQ

We offer 1/4 inch to 6 inches of ball valves in our product range, and we can produce special sizes.

We can supply our ball valves in stainless steel, brass, WCB or bronze as per the requirement of application. Carbon steel and high-grade plastics are options as well.

Definitely! OEM & ODM services offering custom sizes, materials, finishes, and special configurations are available.

The pressure ratings of our ball valves range from 100 to 6000 PSI according to design and materials.

Definitely. We provide competitive wholesale price levels on large orders. Contact us to ask for your free custom quotation!

It is essential to buy from Plumberstar ball valves; several conditions would require buying a ball valve: installing a new washbasin for the renovation of a kitchen, or if you are a plumber and have to change an old ball valve for the customer. We have a very large collection of affordable top-quality ball valves to make sure you find just the right one that fits your need.

Yes, we give a 3-year warranty for all our ball valves to provide quality and reliability.

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Ball valves are suitable for frequent operation, opening and closing quickly and easily. They also feature low fluid resistance, simple structure, relatively small size, light weight, and easy maintenance. Their excellent sealing performance is not restricted by the installation direction, allowing the flow of media in any direction.