Double Disc Check Valves (CVIII)

The VSI Waterworks’ CVIII Check Valve is a very short lay length valve- perfect for refineries, petrochecemical plants, and pump stations.

The dual door design relies on a variable number of springs to adjust to the desired opening pressure range.  The spring loaded design combined with the resilient seat produces a very fast non-slam closure.

Valves in this line are designed and contructed to meet and exceed AWWA C518.



  • Size: 2″-48″
  • Temperature Range: to 400F
  • Pressure Rating: 275psi CWP
  • Body Material: Ductile iron, cast iron, stainless steel, bronze
  • Disc Material: Stainless steel, bronze, ductile iron
  • Seat: Viton, EPDM, NBR, PTFE
  • Connection: Wafer, flanged
  • Available Options: Special Materials, custom bolt patterns
    *Many other options are available upon request.


2"-48"Double Disc Check Valve Dimensions and MaterialsCVIII-1000R2
2"-48"1 Year WarrantyWarranty 1 Year From Acceptance

1205 Alpha Drive
Alpharetta, GA 30004

(770) 740-0800
(866) 987-1999

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