① Main material: carbon steel, stainless steel, alloy steel
② Nominal diameter: NPS 1/2 "to NPS 36"
③ Pressure range:...
We strive to provide customers with the most optimized design solutions to reduce the overall cost of the right angle check valve, threaded swing check valve, automatic check valve . Since equipment operation directly affects corporate costs, heavy duty check valve quality and market responsiveness, we use advanced equipment from well-known brands. Both domestic and foreign merchants are strongly welcomed to join us to grow together. In the face of the ever-changing market challenges, we adhere to the management culture of "people-oriented, market service". All product series obtained the certification of UL and TUV. Integrity to one's own work, integrity to the superior leadership, and thus integrity to customers is one of the basic codes that each employee of our company consistently adheres to. In the face of opportunities and challenges, we integrate resources, complement each other's strengths, and optimize the overall business model.
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![API Swing Check Valve]()
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![Wafer Check Valve]()
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... -
![Wafer Dual Pate Swing Check Valve]()
Wafer Dual Pate Swing Check Valve① Main material: carbon steel, stainless steel, alloy steelread more
② Nominal diameter: DN50 to DN1000
③ Pressure range: 1.0MPa~16.0MPa
④... -
![Axial Flow Check Valve]()
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:... -
![Tilting Disc Check Valve]()
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... -
![High Pressure Wafer Check Valve]()
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 -
![Large Bore Vertical Check Valve]()
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 -
![Forged Steel High-Pressure Vertical Check Valve]()
Forged Steel High-Pressure Vertical Check ValveMasters in pipeline maintenance all know that fluid backflow is a big trouble—it may affect the flow rate at best, or damage the pump at worst. This vertical check valve from Zhengmao Valve is...read more -
![Jacket Check Valve]()
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 -
![High Pressure Seal Bonnet Check Valve]()
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 High Pressure Check Valve]()
API High Pressure Check ValveBosses handling foreign trade projects or undertaking European and American standard production lines all know that check valves must not only prevent backflow but also comply with API standards....read more -
![Stainless Steel Tilting Disc Check Valve]()
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
Linda Washington
Sellers are really trying to develop the company's business, and they are patient and try their best to meet customer requirements.
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Choosing a good supplier is a tedious and difficult thing. Since we attach great importance to service and quality, we are extra careful when making choices, and after learning about this company in
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I think the price of their products is also suitable, this is a satisfied online purchase.
Roberta Sanford
We have been working with you for many years and are impressed by your excellent workmanship and professional team, and we hope to continue working with you!
Richard McClure
This company has been striving to innovate its products, taking every aspect of product development and production seriously. We are very satisfied with the quality of their products.
Joseph Wentz
This company provides professional and timely communication and also has favorable product prices, so we are very satisfied.
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Our confidence in the quality of our high pressure hydraulic ball valve, back check valve comes from a continuous system of technological innovation, intensive production management, strict quality inspection procedures and proactive customer service. We're known as one of the most professional heavy duty check valve manufacturers and suppliers in China. With over 30 years' experience, we warmly welcome you to wholesale high quality heavy duty check valve made in China here from our factory. Contact us for more details.