Since 1988 Offset Valve Manufaturer
EPC/Design Institute Use Only
For 38 years, we have provided reliable eccentric products for all operating conditions, from raw water intake to wastewater treatment.Customization supported.
Since 1988 Offset Valve Manufaturer
EPC/Design Institute Use Only
For 38 years, we have provided reliable eccentric products for all operating conditions, from raw water intake to wastewater treatment.Customization supported
Products
SINCE1988.The main products include large-caliber bidirectional metal hard-sealed butterfly valves, bidirectional rubber soft-sealed butterfly valves, bidirectional hard-sealed rotary ball valves, top-mounted eccentric semi-ball valves, hard-sealed wear-resistant eccentric semi-ball valves, elastic soft-sealed gate valves, expansion joints, check valves, exhaust valves and other products.
ZHONGNAN VALVE
ZHONGNAN VALVE
Double Eccentric (Offset) Butterfly Valve
Supports customization. This butterfly valve is a type produced by our factory, mainly used in water supply plants, power plants, steel plants, smelting plants, paper mills, chemical plants, water supply projects, environmental protection facility construction, and other water supply and drainage projects. It is especially suitable for regulation and shut-off devices in water flow pipelines.
ZHONGNAN VALVE
Applications
Widely used in petroleum, metallurgy, electricity, medicine, natural gas, tap water, high-rise buildings, sewage treatment plants
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Wastewater treatment plants
Widely used in petroleum, metallurgy, electricity, medicine, natural gas, tap water, high-rise buildings, sewage treatment plants
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Power Industry
Widely used in petroleum, metallurgy, electricity, medicine, natural gas, tap water, high-rise buildings, sewage treatment plants
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Construction Industry
Widely used in petroleum, metallurgy, electricity, medicine, natural gas, tap water, high-rise buildings, sewage treatment plants
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Petrochemical Industry
Widely used in petroleum, metallurgy, electricity, medicine, natural gas, tap water, high-rise buildings, sewage treatment plants
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Municipal Engineering
Widely used in petroleum, metallurgy, electricity, medicine, natural gas, tap water, high-rise buildings, sewage treatment plants
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Water Conservancy Project
Widely used in petroleum, metallurgy, electricity, medicine, natural gas, tap water, high-rise buildings, sewage treatment plants
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ABOUT US
ZHONGNAN VALVE
Zhengzhou Zhongnan Valve Co., LTD. (37 years) is a national A1 level manufacturing license enterprise, a national high-tech enterprise! It has ISO and CE certification.
The factory, integrating scientific research, manufacturing, sales and service, owns thick technical strength and modern quality test and experiment center;it has ultrasonic thickness testers, chemical analysis, CAD valve design, extract and efficient CNC manufacturing center, CNC machines and extract test facilities.
Founded in
Factory area
Current employees
Certification
Integrating scientific research, manufacturing, sales, and service; Having strong technical strength and modern quality inspection and testing center
Blog
Committed to becoming a global industrial valve product service provider
The Stability of DN3000 butterfly valve water in Long-Distance Water Transmission Pipelines
In long-distance water transmission pipeline systems, the DN3000 butterfly valve water serves as a critical control device; its operational stability directly impacts the safety and water supply efficiency of the entire transmission project. Due to the large pipe diameter, high flow rates, and complex pressure fluctuations involved, these butterfly valves are susceptible to various factors under actual operating conditions—such as water hammer shocks, vibrations, and uneven sealing loads—thereby imposing stringent requirements on their stability.
May 28,2026
How API 609 Butterfly Valves Mitigate Leakage Risks
In industrial systems—such as those found in the petroleum, chemical, power generation, and natural gas sectors—the sealing performance of valves directly determines the safety and stability of the entire pipeline system. Compared to standard butterfly valves, API 609 butterfly valves stand out in their ability to mitigate leakage risks, thanks to their adherence to stricter manufacturing standards and their more robust structural designs; consequently, they are widely deployed in environments characterized by high temperatures, high pressures, and other severe operating conditions.
May 20,2026
A Guide to Avoiding Pitfalls When Purchasing Seawater Butterfly Valves
In fields such as seawater desalination, marine engineering, and coastal power plants, seawater butterfly valves serve as critical components for controlling fluid flow. Given the high salinity and extreme corrosiveness of seawater, the proper selection and quality of these butterfly valves directly impact the safety and operational lifespan of the entire system. Improper selection not only drives up maintenance costs but can also trigger severe operational failures. As a professional manufacturer, Zhongnan Valve has compiled a practical guide to help you avoid common pitfalls when making a purchase.
May 07,2026
Transportation
Support air, land and sea transportation
Customization
Offering options for customers to customize
Enjoy A Discount
Customers can negotiate the purchase price
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