① Main material: carbon steel, stainless steel, alloy steel
② Nominal diameter: DN15 to DN400
③ Pressure range: 1.0MPa~16.0MPa
④ Operating...
The company is an enterprise specializing in the production of needle check valve, threaded swing check valve, liquid check valve and a qualified and registered supplier in the industry. Our company takes the market as the guidance, our business is booming, our dual flap check valve regardless of variety or quality are worthy of the top of the industry. Facing the future, we will continue to accelerate strategic integration and adhere to scientific and technological innovation, operation and management innovation. After years of continuous innovation and efforts, our factory has achieved rapid development. Based on the tenet of serving customers, we provide customers with high-quality products through continuous product innovation, and quality control. "First-class product quality, perfect pre-sales and after-sales service" is the solemn promise of all the staff of our company to every user. Based on the management idea and design concept of mobile Internet, we have a mature collaborative management product system.
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GB Swing Check Valve① Main material: carbon steel, stainless steel, alloy steelread more
② Nominal diameter: DN25 to DN900
③ Pressure range: 1.0MPa~16.0MPa
④... -
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GB Lift Check Valve① Main material: carbon steel, stainless steel, alloy steelread more
② Nominal diameter: DN15 to DN400
③ Pressure range: 1.0MPa~10.0MPa
④... -
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Wafer Check Valve① Main material: carbon steel, stainless steel, alloy steelread more
② Nominal diameter: DN15 to DN250
③ Pressure range: 1.0MPa~16.0MPa
④... -
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Axial Flow Check Valve① Main material: carbon steel, stainless steel, alloy steelread more
② Nominal diameter: DN15 to DN900
③ Pressure range: 1.0MPa~16.0MPa
④ Operating temperature:... -
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Tilting Disc Check Valve① Main material: Carbon steel, stainless steel, alloy steelread more
② Nominal diameter: NPS2 "to 24", DN50 to DN600
③ Pressure range: Class 150 to Class 600,0.6 MPa to 10.0... -
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High Pressure Wafer Check ValveIn pipelines for water supply, heating or chemical fluid transportation, the most annoying thing is medium backflow—it may affect the flow at best, or damage the pump at worst. This wafer lift...read more -
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Large Bore Vertical Check ValveMasters engaged in pipeline maintenance all know that the biggest fear is medium backflow—it will affect the flow rate at best and damage equipment at worst. This tubular check valve from Zhengmao...read more -
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Jacket Check ValveMasters in petrochemical, heating and other industries all know that when transporting media like hot water and steam, the biggest worries are valve condensation, freezing and cracking, and medium...read more -
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High Pressure Seal Bonnet Check ValveMasters engaged in pipeline maintenance all know that fluid backflow is a big trouble—it may affect the process at best, or damage equipment at worst. This swing check valve made by Zhengmao Valve...read more -
![API Cryogenic Check Valve]()
API Cryogenic Check ValveFriends engaged in low-temperature storage, liquefied natural gas (LNG) and other related work all know that when the medium reaches minus tens or even hundreds of degrees Celsius, ordinary valves...read more -
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Stainless Steel Tilting Disc Check ValveMasters in pipeline maintenance all know that fluid backflow is a big trouble—it may affect the process at best, or damage equipment at worst. This tilting disc check valve from Zhengmao Valve is...read more
Troy Burford
Praise, this product is very fresh, the visual effect is very clear, very feeling.
Marisela Cox
My goods were received very quickly. They were 100% brand new.
James Maskell
The product works very well and overall it's great!
James German
This seller has won a good reputation in the industry by virtue of his good attitude and excellent products, we wish to have more cooperation with them.
Joyce Massingill
Honesty, integrity and responsibility are the foundation of any company. However, many enterprises are trying to cheat customers with dirty methods. This will never happen to this company.
Dale Shutt
I have bought products from this supplier many times and it is indeed better than others.
Dual Flap Check Valve - vahn-tech.com...
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We are committed to improving product quality, developing and updating products in order to continuously provide customers with quality in line check valve, 63mm gate valve and comprehensive services. We're known as one of the most professional dual flap check valve manufacturers and suppliers in China. With over 30 years' experience, we warmly welcome you to wholesale high quality dual flap check valve made in China here from our factory. Contact us for more details.