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Stainless Steel Flanged Check Valve
  • Stainless Steel Flanged Check ValveStainless Steel Flanged Check Valve
  • Stainless Steel Flanged Check ValveStainless Steel Flanged Check Valve

Stainless Steel Flanged Check Valve

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.

Stainless Steel Flanged Check ValveStainless Steel Flanged Check Valve


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)
  • In chemical and petrochemical process lines
  • In water treatment and distribution systems
  • In industrial equipment protection pipelines

WHY CHOOSE Huadu Stainless Steel Flanged Check Valve?

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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