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Precision Valve Solutions for Industry

Zhejiang Lianggao Valve Co., Ltd. – A leading manufacturer of high-quality knife gate valves, metallurgical valves, gate valves, and globe & check valves. CNC precision machining, 12+ patents, exported to over 30 countries.

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Who Are We?

Zhejiang Lianggao Valve Co., Ltd. is a professional manufacturer specializing in medium and large-sized industrial valves. Established in 2002, we have over two decades of experience in designing, manufacturing, and delivering high-performance valve solutions for demanding industrial environments.

Our product lines include knife-type gate valves, metallurgical valves, gate valves, globe valves, and check valves. With a strong focus on R&D and precision engineering, we hold 12 self-owned patents and serve clients across 30+ countries worldwide.

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Zhejiang Lianggao Valve Factory

Our Product Range

We manufacture high-quality industrial valves designed for durability, precision, and performance in harsh environments.

Double-piece Bidirectional Seal Knife Gate Valves

Double-piece Bidirectional Seal Knife Gate Valves

Designed for reliable sealing in both flow directions, ideal for applications with variable fluid direction.

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Lug Type Bidirectional Seal Knife Gate Valves

Lug Type Bidirectional Seal Knife Gate Valves

Compact design with bidirectional sealing, suitable for tight spaces and high-pressure systems.

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Knife Gate Valve With Cover

Knife Gate Valve With Cover

Enhanced protection and sealing with integrated cover, ideal for abrasive media and slurry applications.

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Rising Stem Quincuncial/Circular Knife Gate Valves

Rising Stem Quincuncial/Circular Knife Gate Valves

High visibility stem design for precise position indication, used in critical control applications.

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Four-bar Vent Butterfly Valve

Four-bar Vent Butterfly Valve

Robust design for high-cycle venting applications in metallurgical and industrial gas systems.

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Ore Pulp Valve

Ore Pulp Valve

Engineered for mining and mineral processing, resistant to abrasive slurries and high wear.

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Flashboard Valve

Flashboard Valve

Used in water control and dam systems, offering reliable isolation and flow regulation.

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Goggle Valve

Goggle Valve

Double-disc isolation valve for gas and steam lines, commonly used in steel plants.

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Gate Valve

Gate Valve

Standard and custom gate valves for on/off control in pipelines across industries.

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Globe Valve

Globe Valve

Precise throttling and flow regulation in high-pressure and high-temperature systems.

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Check Valve

Check Valve

Prevents backflow in pipelines, ensuring system safety and operational integrity.

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Custom Valve Solutions

Custom Valve Solutions

We offer tailored valve designs for non-standard applications in metallurgy, pulp, and infrastructure.

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Why Choose Us?

Advanced manufacturing, innovation, and global reliability define our commitment to excellence.

Industrial Expertise

20+ years of experience in valve manufacturing for mining, metallurgy, pulp, and infrastructure.

Precision Machining

Equipped with 5 CNC vertical machining centers, 1 column machining center, and 6 CNC lathes.

R&D Focused

12 self-owned patents and continuous innovation in valve design and sealing technology.

Global Reach

Products exported to over 30 countries, trusted by international industrial clients.

Our Impact

2002

Year of Establishment

60+

Employees

7000

m² Plant Area

30+

Exporting Countries

Frequently Asked Questions

Find answers to common questions about our valves and services.

Get in Touch

For inquiries, quotes, or technical support, visit our official website to contact the team directly.

Phone: +8613552978332
WhatsApp: +86 13552978332
Email: [email protected]

Our team includes 4 valve engineers with intermediate professional titles, ready to assist with technical and commercial inquiries.

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