BS5153 Cast Iron Swing Check Valve

BS5153 Cast Iron Swing Check Valve

Technical Requirement:
  1. Design and Manufacture: BS5153;
  2. Face to Face: B5153;
  3. Flange End: BS4504;
  4. Test: BS5146;

Description

The Cast Iron Swing Check Valve is designed to prevent backflow in piping systems. It utilizes a hinged disc (clapper) that swings open to allow forward flow and closes under gravity and back pressure to seal the line. This valve features a robust cast iron body with flanged ends, suitable for water, steam, and oil applications. The side-mounted cover allows for easy inspection and maintenance of the internal disc and hinge mechanism.

Technical Specifications:
  • Nominal Diameter (DN): DN50 – DN300
  • Pressure Rating: PN16 (BS 4504 flange dimensions)
  • Applicable Medium: Water, Steam, Oil
  • Body Material: Cast Iron (GG25 / GG20)
Main Parts and Materials:
Parts NameMaterials
Body, BonnetCast iron/ductile iron
DiscCast iron/ductile iron
Seat RingBrass
 
Key Product Features:
  1. Automatic Backflow Prevention: The hinged disc mechanism swings open for forward flow and closes automatically under gravity and back pressure to protect downstream equipment.
  2. Robust Cast Iron Construction: Features a heavy-duty cast iron (GG25/GG20) or ductile iron body for maximum structural integrity and long service life.
  3. Corrosion-Resistant Trim: Equipped with a brass seat ring to ensure long-lasting, leak-tight sealing performance against wear and corrosion.
  4. Easy Maintenance Access: The side-mounted cover design facilitates convenient and safe access for inspection and maintenance of the internal disc and hinge mechanism.
  5. Low Flow Resistance: The full-port swing design allows the disc to clear the flow path completely when open, minimizing turbulence and pressure drop.
Applications:
Ideal for Municipal Water Distribution, Steam Distribution Networks, Oil Pipelines, and General Industrial Fluid Systems. Specifically suited for horizontal pipelines or vertical lines with upward flow where preventing reverse flow is critical to system safety and equipment longevity.

Additional information

Standard

BS

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