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2025-03-12
What is a floating ball valve?
A floating ball valve is a valve in which the ball can float. Under the action of medium pressure, t...
The WCB Flanged Check Valve is a unidirectional flow control device designed to prevent reverse flow in pressurized pipeline systems. The body of the valve is made from WCB (Wrought Carbon Steel), which offers good strength and durability. This material is capable of withstanding high pressures and temperatures, making it suitable for a wide range of applications. The flanged connections ensure a secure and leak-free installation, providing a reliable seal that can handle significant fluid flow rates. Commonly applied in industrial water, oil, gas, and steam networks, the valve operates automatically without external actuation, relying on flow pressure to open and reverse pressure to close. The flanged ends conform to international standards for secure integration into rigid piping systems.
Who Uses Flanged Check Valves?
| User | User Profile | Key Priorities |
| Municipal Utility Engineer | Manages water supply or drainage pipelines | Easy Installation, Long-Term Sealing |
| HVAC / Building System Designer | Handles pump systems and vertical risers | Compact Design, Low Pressure Loss |
| Pipeline Contractor | Works on infrastructure or industrial projects | Standard Flange Sizes, Fast Maintenance |
| Oil & Gas Operator | Requires backflow protection for pumps, storage lines | Durable Materials, API/ASME Compliance |
Key Features & Advantages:
Standard Flanged Ends (RF / FF / RTJ)
Easy to bolt between pipeline flanges, ensures alignment and seal tightness.
Automatic Backflow Prevention
Disc swings or lifts into position based on flow direction—no actuator needed.
Wide Compatibility with Global Standards
Follows ANSI, ASME, DIN, EN flange dimensions for seamless integration.
Multiple Internal Configurations
Available as swing type, tilting disc, lift type, or dual plate wafer, depending on system needs.
Metal or Soft Seat Options
Choose metal-to-metal sealing for steam/oil, or EPDM/NBR soft seat for water and air.
Technical Specifications
| Parameter | Specification |
| Size Range | 2” ~ 48” (DN50 ~ DN1200) |
| Pressure Rating | Class 150 ~ 900 / PN10 ~ PN160 |
| Body Materials | Ductile Iron, WCB, CF8, CF8M, Bronze |
| Disc Materials | SS304, SS316, Bronze, Rubber-Coated |
| Seat Type | Metal Seat / Resilient Seat (NBR, EPDM) |
| Flange Standards | ASME B16.5, DIN EN 1092-1, BS4504, JIS B2220 |
| Design Standards | API 6D, BS 1868, EN 12334 |
| Testing | API 598 Pressure & Leak Test, Air Tightness Test |
Sample Product Code
FCV-CL150-WCB-8IN-RF
(Flanged Check Valve, Class 150, WCB Body, 8 Inch, Raised Face Flanges)
Common Applications：
Municipal Water & Wastewater Systems – Pump outlet, main line backflow prevention
HVAC & Building Utilities – Chiller/cooling systems, return risers
Oil & Gas Pipelines – Pump discharge protection, tank inlet/outlet isolation
Fire Protection Systems – Passive flow shut-off for sprinkler or hydrant lines
General Industry – Process water, compressed air, chemical circulation
Why Choose Our Flanged Check Valves?
Simple Installation & Alignment
No need for welding or special connectors—just bolt and seal.
Customizable Disc & Seat Configurations
Tailored for water, steam, oil, or chemical applications.
Trusted in Global Infrastructure Projects
Installed in city pipelines, oil fields, and industrial zones across Asia, Europe, Middle East.
Full QA Documentation Provided
MTC, FAT, ITP, third-party inspection certificates upon request.
Need a Check Valve That Bolts Right In?
Request a Custom Quote Within 24 Hours
For more details about Zhejiang Yushun Valve Co., Ltd., please contact us:
Email: w584574148@gmail.com
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2025-03-12
