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Butterfly valves Manufacturer

In Accordance with GB, JB, ANSI, API, DIN, BS, GOST, JIS

Leader of Butterfly Valve Manufacturer in China

ZUV is recognized as a leading butterfly valve manufacturer in China, delivering high-performance solutions for global industrial applications. With a strong focus on quality control, advanced manufacturing technology, and strict compliance with international standards such as API and ISO, ZUV ensures every butterfly valve offers reliable sealing, long service life, and stable performance. From concentric to double and triple eccentric designs, ZUV provides a full range of customizable products to meet diverse requirements in oil & gas, chemical, and water treatment industries. Choosing ZUV means choosing a trusted partner committed to quality, efficiency, and long-term value.

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Selection of Industrial Butterfly Valve Types

Selecting the right industrial butterfly valve type is critical for ensuring system efficiency, sealing performance, and long service life. Different designs such as concentric, double eccentric, and triple eccentric butterfly valves are suitable for various working conditions, including low-pressure water systems, medium-pressure chemical processes, and high-temperature or high-pressure oil & gas applications. ZUV offers a complete range of butterfly valve solutions, helping customers choose the most suitable type based on pressure rating, temperature, media, and operational requirements. With ZUV’s professional support and strict quality standards, buyers can achieve reliable performance while reducing maintenance costs and operational risks.

  • Double Eccentric Butterfly Valve

    Double Eccentric Butterfly Valve

    The Double Eccentric Butterfly Valve, also known as a high-performance butterfly valve, is engineere...

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  • Lug Butterfly Valve

    Lug Butterfly Valve

    The Lug Butterfly Valve is designed for efficient flow control and isolation in a wide range of indu...
  • Metal Seal Butterfly Valve

    Metal Seal Butterfly Valve

    The Metal Seal Butterfly Valve is specially designed for high-temperature, high-pressure, and abrasi...
  • Triple Eccentric Butterfly Valve

    Triple Eccentric Butterfly Valve

    The Triple Eccentric Butterfly Valve is a high-performance valve designed for severe service conditi...
  • Wafer Butterfly Valve

    Wafer Butterfly Valve

    The Wafer Butterfly Valve is a compact and lightweight valve designed for efficient flow control and...

    • How to Control the Quality of Butterfly Valve

    Controlling the quality of check valves is essential for ensuring reliable backflow prevention and long-term system safety in industrial pipelines. The process begins with carefully selected certified materials such as WCB, CF8M, and duplex stainless steel, followed by precision machining of sealing surfaces and strict control of disc or hinge alignment to guarantee smooth and stable operation. Comprehensive inspections—including hydrostatic pressure testing, NDE, and functional performance checks—are carried out to verify sealing integrity and durability under real working conditions. At ZUV, a full-process quality management system in compliance with API and ISO standards is applied to every check valve, ensuring consistent performance, minimized maintenance risks, and dependable operation that global buyers can confidently rely on.

    Choose a Reliable Butterfly Valve Supplier:

    Selecting a reputable and experienced manufacturer is essential. A qualified supplier should have advanced production facilities, strong technical expertise, and a well-established quality management system.

    Strict Control of Raw Materials:

    The quality of materials directly affects the sealing performance and lifespan of butterfly valves. High-grade materials must be selected, and all incoming materials should undergo strict inspection and testing.

    Strengthen Production Process Control:

    During manufacturing, precision machining, proper assembly, and strict adherence to process standards are crucial. Special attention should be given to disc alignment, seat installation, and sealing surface treatment to ensure optimal performance.

    Improve Quality Inspection System:

    Comprehensive testing, including pressure testing, sealing performance testing, and operational testing, must be conducted before delivery. Advanced testing equipment and standardized procedures ensure consistent product quality.

    Strengthen Valve Factory After-sales Service:

    The quality issues raised by customers should be responded to quickly, the quality issues that arise should be solved in a timely manner, and products and services should be actively improved to continuously improve customer satisfaction.

    How to Choose the Correct Butterfly Valve

    There are many types of butterfly valves. As a widely used valve for regulating and isolating flow, butterfly valves are known for their compact structure, lightweight design, and cost-effectiveness. Choosing the correct butterfly valve is essential for ensuring system efficiency, durability, and safety. Let’s listen to the advice of China Butterfly Valve Factory – ZUV

    Selection of Butterfly Valve Structure

    Concentric Butterfly Valve:

    The concentric (centerline) butterfly valve features a disc and stem aligned at the center of the valve body. The seat is typically made of elastic materials such as rubber or PTFE, providing good sealing performance.

    It is cost-effective and commonly used for low-pressure and general applications such as water treatment and HVAC systems.

    Double Eccentric Butterfly Valve (Double Offset):

    In this design, the stem is offset from the center of the disc and body, reducing friction between the disc and seat during operation.

    This results in lower wear, longer service life, and improved sealing performance. It is suitable for medium to high-pressure applications and industrial systems.

    Triple Eccentric Butterfly Valve (Triple Offset):

    The triple offset design introduces an additional angular offset, creating a cam-like sealing mechanism. This eliminates friction during opening and closing, ensuring zero leakage and excellent sealing performance.

    It is ideal for high-temperature, high-pressure, and critical applications such as oil & gas, petrochemical, and power plants.

    Wafer Butterfly Valve:

    The wafer type butterfly valve is installed between two flanges and held in place by bolts. Its lightweight and compact structure make it an economical solution for space-limited installations.

    Commonly used in water systems, HVAC, and general industrial pipelines.

    Lug Butterfly Valve:

    The lug type butterfly valve features threaded inserts (lugs) on both sides of the valve body, allowing it to be bolted directly to flanges. This design enables easy installation and maintenance, and allows one side of the pipeline to be removed without affecting the other.

    Suitable for systems requiring frequent maintenance.

    Flanged Butterfly Valve:

    The flanged butterfly valve comes with integral flanges on both ends, providing strong and secure connections.

    It is typically used in high-pressure systems and applications requiring robust installation and stability.

    High-Performance Butterfly Valve:

    This type usually adopts a double or triple offset design with advanced sealing materials, offering excellent resistance to high temperature, pressure, and corrosive media.

    It is widely used in demanding industrial environments.

    Choice of Butterfly Valve by Material

    Carbon Steel Butterfly Valve

    A carbon steel butterfly valve is widely used for high-pressure and high-temperature applications, offering strong strength, reliable sealing, and cost-effective performance in industrial pipeline systems.

    Include WCA, WCB, WCC, LCB, LCC, LC1, LC2, LC3, WC1, WC6, WC9, C5, C12, C12A

    Stainless Steel Butterfly Valve

    A stainless steel butterfly valve is designed for corrosion-resistant applications, providing excellent durability, clean flow performance, and reliable sealing in demanding environments such as chemical, marine, and water treatment systems.

    Include CF8, CF10, CF8M, CF10M, CF3, CF3M, CF8C, 317, 321, 317L, CG8M, CG3M, 904L, 316Ti, 12X18H9T, S32168

    Duplex Stainless Steel Butterfly Valve

    A duplex stainless steel butterfly valve is engineered for highly corrosive and high-strength applications, offering superior resistance to pitting, stress corrosion cracking, and long-term durability in harsh environments such as offshore and chemical industries.

    Include 4A, 5A, 6A, 2205, 2507, CD3MN, CE3MN, CD3MWCuN, F51, F53, F55, F60, S31803, S32205, S32750, S32760

    Special Alloy Butterfly Valve

    A special steel butterfly valve is designed for demanding service conditions, providing enhanced strength, wear resistance, and reliable sealing performance in high-pressure, high-temperature, or corrosive industrial applications.

    Include C36000, C63200, C83600, C84400, C95400, C95500, C95800, LG2, B61, B62, CN7M, CD4MCu, CW6MC, CY40, CU5MCuC, CN3MN, CW12MW, CK3MCuN, Monel, Ti, Hastelloy C

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