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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 Swing Check Valve is a non-return valve designed to allow fluid to flow in one direction and automatically prevent reverse flow. Its hinged disc swings open with forward flow and seals shut when flow stops or reverses, offering passive protection without external actuation. This makes it ideal for water, oil, gas, and chemical systems where backflow could damage equipment or disrupt processes.
Who Uses Swing Check Valves?
| User | User Profile | Key Priorities |
| Pipeline Engineer | Designs flow systems with pressure-sensitive equipment | Backflow Prevention, Low Pressure Loss |
| Pumping System Integrator | Builds pump stations and circulation loops | Non-Slam Operation, Easy Installation |
| Plant Maintenance Supervisor | Oversees valve reliability and service cycles | Durable Parts, Accessible Internals |
| Municipal / Industrial Utility Buyer | Procures valves for water, oil, or gas networks | Certified Quality, Long Service Life |
Key Features & Benefits:
Automatic Swing Disc Design
Allows free forward flow and instant shut-off against reverse pressure.
Low Pressure Drop
Full-bore and streamlined body design minimizes flow resistance.
Top-Access Bonnet (Optional)
Easy maintenance access to disc and seat without removing valve from line.
Metal-to-Metal or Soft Seated
Choose from resilient seats (NBR, EPDM) or metal overlays (Stellite) for durability.
Optional Lever & Weight / Dashpot
Prevents water hammer in large-diameter or vertical lines.
Suitable for Horizontal or Vertical Installations
Ideal for pumping systems, vertical risers, and gravity return lines.
Technical Specifications
| Parameter | Specification |
| Size Range | 2” ~ 48” (DN50 ~ DN1200) |
| Pressure Rating | Class 150 ~ 900 / PN16 ~ PN160 |
| Body Materials | WCB, CF8, CF8M, Ductile Iron, Bronze |
| Disc Materials | SS304, SS316, Bronze, Duplex |
| Seat Type | Metal Seated / Soft Seated / Stellite Overlay |
| Connection Ends | Flanged (RF / RTJ), BW, Lug, Wafer |
| Design Standards | API 6D, ASME B16.34, DIN EN 12334, BS 1868 |
| Testing | API 598 Hydrostatic & Seat Test, Air Backpressure Test |
Sample Product Code
SCV-CL300-WCB-10IN-RF
(Swing Check Valve, Class 300, WCB Body, 10 Inch, Flanged RF Ends)
Typical Applications：
Water Supply & Drainage Systems – Pump discharge, city water lines
Oil & Gas Pipelines – Midstream pump protection, loading/unloading systems
Power & Steam Plants – Condensate return, turbine protection
Chemical & Process Plants – Prevents backflow of aggressive media
Firefighting Systems – Auto-reset flow isolation in emergency lines
Why Choose Our Swing Check Valves?
Simple, Reliable Design
Fewer parts, passive operation, no actuator needed.
Built for Long-Term Use
Forged or cast construction, high-cycle life, corrosion-resistant trims.
Full Certification & Documentation
Includes MTC, FAT, ITP, PMI, NDT, and 3rd-party inspection support.
OEM and Special Projects Ready
Custom trims, exotic materials, or API monogram options available.
Protect Your Flow System from Backpressure Today
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
