Stainless Steel Threaded Vent Check Valve

Product # 521107


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 Threaded
  • Float Material Poly
  • Body Material Stainless Steel


Item # Size (in) Request a Quote
521107.450 2-1/2 Contact
521107.500 3 Contact
521107.650 5 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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