Custom Fully Welded Ball Valve Manufacturer Since 1998

  • Full Range of Ball, Gate, Globe, Check, Butterfly Valves and Strainers
  • For Natural Gas, District Heating and Industrial Pipeline Systems

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    Our Valve Solutions

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    Ball Valve

    BIDIRECTIONAL ZERO LEAKAGE

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    Gate Valve

    FULL BORE FLOW
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    Globe Valve

    PRECISE FLOW REGULATION
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    Butterfly Valve

    COMPACT FLOW CONTROL
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    Check Valve

    RELIABLE BACKFLOW PREVENTION
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    Built for
    Critical Flow Control

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    DN15–DN2500 Manufacturing Capability

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    Up to PN400/Class2500 Pressure Ratings

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    200,000+ Valves Produced
    Annually

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    30+ Years Maintenance-Free Buried Service

    We Serve Critical Industries Worldwide

    Different industries face different operating challenges. With decades of valve manufacturing experience, we provide cast and forged steel valve solutions tailored to the pressure, temperature and media requirements of critical pipeline systems.
    Natural Gas Transmission & Distribution

    Natural Gas Transmission & Distribution

    From urban gas networks to long-distance pipelines, HAOGUANG fully welded ball valves provide reliable isolation, reducing leakage risks and supporting safer long-term gas transmission.

    District Heating Networks

    District Heating Networks

    Designed for buried heating systems, our welded ball valves and lockshield valves serve heat exchange stations and pre-insulated pipelines, backed by 5,000-cycle durability testing.

    Petrochemical Processing

    Petrochemical Processing

    We manufacture industrial valves in A105, LF2, and stainless steel for demanding temperatures, pressures, and complex media across critical petrochemical processing and refining systems.

    Water Treatment & Distribution

    Water Treatment & Distribution

    For pumping stations, treatment facilities, and transmission pipelines, we supply ball valves, butterfly valves, and strainers to maintain dependable water flow and reduce maintenance.

    About HAOGUANG

    Across energy, utility and industrial infrastructure, dependable flow control begins with the reliable valve partner.

    Since 1998, HAOGUANG has developed as a leading fully welded ball valve manufacturer and supplier, producing gas pipeline valves, district heating valves, lockshield valves, and forged & cast steel valves for global pipeline systems.

    With years of advanced welding process development, we support OEM customization, material selection, and engineering reviews to help you get the OEM & ODM valve solution for your application. Whether for standard valve supply or custom projects, we're ready to support your project.
    Stable Supply with Faster Lead Time
    Our 10,000㎡ facility combines 15 CNC vertical lathes, 15 machining centers, and narrow-gap submerged arc welding, supporting dimensional accuracy, sealing reliability, and 7-day standard order lead times.
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    Verified Quality for Industrial Safety
    From 100% phased-array UT inspection to API 6D and ISO 5208 testing, our fully welded ball valves maintain bidirectional zero leakage through 5,000 operating cycles.
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    Pre-sales & After-sales Support
    From 100% phased-array UT inspection to API 6D and ISO 5208 testing, our fully welded ball valves maintain bidirectional zero leakage through 5,000 operating cycles.
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    OEM & ODM Valve Solutions with Low MOQ

    As a customized valve manufacturer in China, we support OEM and ODM valve services for distributors and engineering contractors who need fully customized valve specifications. From material selection and flange standards to sealing structures and low-temperature performance down to -46°C, every detail is aligned with your project requirements.

    Engineering & Design

    Customized valve solutions Backed by 2 R&D Centers

    Material Selection

    Premium materials for ultimate performance

    Prototyping

    1-Unit MOQ with 12H sample response

    Testing & Qualification

    Rigorous testing to meet application standards

    Packaging & Delivery

    Export-Ready Packaging for Global Shipping

    Trusted in 30+ Countries Globally

    Partnering with tier-1 brands such as Leader Brass LLC, HAOGUANG supplies industrial valves to more than 30 countries worldwide.
    From district heating networks in Northern and Eastern Europe to natural gas pipeline projects across the Middle East, South America, and Asia, our certified valve manufacturing capability supports infrastructure projects where safety, sealing performance, and delivery reliability are critical.
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    Blog & News

    Valve Industry Insights & Updates

    Stay updated with valve technology insights, application knowledge, and industry trends to support smarter decisions for your pipeline projects.

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    Talk to Our Valve Engineer

    Share your size, pressure class, medium, and operating conditions, and we will recommend the right valve solution.

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