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
Double Eccentric Butterfly Valve
It can be customized according to different needs. The 14 long series butterfly valve is a type of long butterfly valve designed in accordance with the EN558 standard. This butterfly valve typically has a longer structural length, providing better flow control and sealing performance in pipeline systems.
ZHONGNAN VALVE
Double Eccentric 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
Triple Eccentric Extended Stem Butterfly Valve
Supports customization, the triple eccentric extended stem butterfly valve is a high-performance butterfly valve with advanced structure and reliable sealing. The valve adopts a triple eccentric design, allowing the valve disc to operate with almost no friction during opening and closing, ensuring a longer sealing surface lifespan. The extended stem structure facilitates operation in underground pipelines, deep wells, and environments with thick insulation layers, ensuring valve reliability while improving installation and maintenance convenience.
ZHONGNAN VALVE
Double Eccentric Extended Stem Butterfly Valve
Supports customization. The double eccentric extended stem butterfly valve is based on the double eccentric butterfly valve, equipped with an extended operating lever or extended valve stem structure, enabling operation in special conditions such as long-distance, underground wells, or buried environments. The double eccentric design effectively reduces friction between the valve disc and the sealing ring, allowing flexible opening and closing, reliable sealing, and long service life.
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
Understanding Regulating Butterfly Valves: Key Considerations for Industrial Applications
Regulating butterfly valves are a specific type of valve designed to control the flow of fluids in a pipeline effectively. These valves utilize a rotating disc to manage the flow, making them highly efficient for both throttling and on/off services. The primary function of a regulating butterfly valve is to maintain a desired flow rate or pressure within a system, which is crucial in many industri
Oct 30,2025
Quality Electric eccentric half ball valve
Quality Electric Eccentric Half Ball Valve stands out for its superior performance, providing reliable fluid control solutions for various complex operating conditions.
Oct 30,2025
The Butterfly Valve is a simple control valve widely used in industrial applications.
Oct 30,2025





