Stainless Steel Flanged Check Valve from Huadu China factory is designed for reliable one-way flow and anti-backflow protection in industrial pipelines. Made of CF8/CF8M stainless steel, it offers strong corrosion resistance, high pressure stability, and long service life. Each unit is factory tested (1.5× pressure, leak detection) and meets GB/ASTM standards. OEM/ODM supported, ideal for petrochemical, water, and chemical systems with stable supply and cost-effective procurement.
As the Chinese factory that produces this Stainless Steel Flanged Check Valve, before each project is implemented, we will provide a pipeline compatibility assessment service. It is an industrial valve installed in pipeline systems to allow fluid to flow in only one direction while preventing reverse flow (backflow). It uses stainless steel as the main body material and flange connections for easy installation and strong sealing performance.
Technical Specifications
1. Basic parameters: The Stainless Steel Flanged Check Valve has a diameter of DN200 and a nominal pressure of 16 MPa.
2. Sealing standard: Its leakage is controlled within Grade IV as stipulated in GB/T 13927.
3. Inspection process: Each finished product undergoes a water pressure test at 1.5 times the nominal pressure and helium mass spectrometry leak detection; the test data is uploaded to the factory traceability system to ensure the consistency between technical parameters and actual performance.
Product Feature
1. Material & casting process: The valve body is precisely cast using CF8 stainless steel, and the molding process complies with the requirements of GB/T 12229, free of casting defects such as sand holes or shrinkage cavities.
2. Performance: It has both compressive strength and corrosion resistance, which meet the pipeline compatibility specifications of HG/T 20592.
3. Connection & sealing: The flange connection dimensions strictly follow the GB/T 9113 standard, enabling direct connection to industry-standard flanges without additional modifications; the sealing surface is ultra-precision polished and matched with PTFE sealing components to enhance sealing performance.
Application Fields of the Product
This Stainless Steel Flanged Check Valve has passed the supplier qualification certification of Sinopec and CNOOC, and is suitable for high-pressure fluid pipelines in industries such as petroleum refining and coal chemical industry, serving as a standardized fluid control accessory for professional industrial projects.
Key attributes
application
Petrochemical,pharmaceutical
media
Water,Oil,Media without impurities,etc.
Port Size
custom
Sealing Material
Steel
structure
Swing type
temperature of media
≤425℃
customized support
OEM,ODM,OBM
place of origin
Zhejiang,China
power
Manual
model number
DN200-16
brand name
KHD
warranty
1 years
Product name
Swing type Check Vavle
Material
Stainless Steel 304 316/WCB
Standard
ASTM BS DIN ISO JIS
Size
DN200 or Contact us for other sizes
Packing
Carton Box
Color
Grey
Pressure
1.0~1.6MPa
Service
24hours Online Service
Temperature
-20℃- 425℃
Medium
Water Oil Gas
FAQ
How do you maintain a Stainless Steel Flanged Check Valve?
Regularly inspect sealing performance and check for leakage
Clean internal parts to prevent debris or particle blockage
Check valve disc movement for smooth opening and closing
Ensure flange bolts remain tight and properly aligned
Perform periodic pressure testing in industrial systems
Proper maintenance of the Stainless Steel Flanged Check Valve helps extend service life and ensures stable anti-backflow performance in pipeline systems.
What is the difference between CF8 and CF8M stainless steel?
CF8: Equivalent to SS304, general corrosion resistance, suitable for water and non-aggressive media
CF8M: Equivalent to SS316, contains molybdenum for better resistance to chloride and seawater corrosion
CF8M is preferred for chemical, marine, and high-corrosion environments
Where should a Stainless Steel Flanged Check Valve be installed?
After pumps to prevent reverse flow damage
In vertical or horizontal pipeline systems (based on valve type)
The Stainless Steel Flanged Check Valve from Huadu is designed for stable anti-backflow performance,
long service life, and reliable operation in industrial pipeline systems. As a China factory manufacturer, Huadu focuses
on precision production, strict quality control, and consistent supply capability for global projects.
Factory Direct Manufacturing Advantage
Produced in Huadu’s own China factory
CNC precision machining for high dimensional accuracy
Full-process quality control from raw material to finished valve
Stable mass production capacity for engineering orders
Reliable Anti-Backflow Performance
One-way flow design prevents reverse medium impact
Stable sealing structure reduces leakage risk
Suitable for high-pressure and continuous operation systems
Fast response valve disc for secure closing
High-Quality Materials
304 / 316 stainless steel available (CF8 / CF8M)
Strong corrosion resistance for chemical and water systems
Suitable for seawater, oil, gas, and industrial media
Long service life with reduced maintenance cost
Easy Installation & Compatibility
Standard flange connection (ANSI / DIN / JIS compatible)
Fits most industrial pipeline systems without modification
Suitable for horizontal and vertical installation (based on type)
Reduces installation time and engineering cost
Engineering & Service Support
OEM / ODM customization available
Technical guidance for installation and selection
24-hour response after-sales support
Suitable for small orders and large engineering projects
Choosing Huadu Stainless Steel Flanged Check Valve means selecting stable quality, factory direct supply, and
dependable performance for long-term industrial use.
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