Galvanized Cast Steel Flanged Vent Check Valve, Cover Available

Product # 521103.450.C


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.

General question about this product?

Looking for pricing information?

Price Request

Product Attributes

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

Technical Specifications

  • Cover Material Bronze
  • Size (in) 2-1/2


Document Name File Size
Vent Check Valve 521101 521102 521103 521104 521106 Catalog.pdf 180.9 KB

Looking for someone to help or request a quote, you can call us at +1 800.962.9696 or fill out our contact form.

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.

W&O Supply uses cookies on this website to track your preferences and activities to ensure effective use of the site. Read our Privacy Policy