Galvanized Cast Steel Flanged Vent Check Valve

Product # 521150


Vent check valves allow for the ventilation of ballast and void tanks while preventing contamination of the tank with water or saltwater during rough seas. They offer fully approved protection against pressure buildup for the tank walls and bulkheads while liquid is loaded or unloaded from the tanks. Vertical vent checks mount directly onto the top of vent piping, while inverted vent checks mount onto the end of gooseneck pipes.

Product Attributes

  • Valve Type Vent Check
  • Specification Type ASME
  • Connection Type Flanged
  • Float Material Poly
  • Body Material Galvanized Cast Steel


Item # Size (in) Approx Weight (lbs) Request a Quote
521150.400 2 23 Contact
521150.450 2-1/2 26 Contact
521150.500 3 Contact
521150.600 4 Contact
521150.650 5 Contact
521150.700 6 50 Contact
521150.750 8 Contact
521150.800 10 Contact

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Dimensional and specification information shown here represents common industrial & commercial standards. Actual dimensions may vary by manufacturer, please contact your local W&O office for specific information.

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