ASME Flanges

ASME Flanges API International stocks imported and domestic (AIS) ASME flanges in steel and stainless steel, including slip-on and blind styles, available in both flat face and raised face designs, offered in class 150 and 300. Our machine shop allows us to manufacture custom ASME flanges to meet your project requirements. ASME Catalog Reliable Code […]
ANSI Flanges

ANSI Flanges API International stocks imported and domestic (AIS) ANSI flanges in steel and stainless steel, including slip-on and blind styles, available in both flat face and raised face designs, meeting ANSI/ASME B16.5 and B16.47 specifications for Class 150 and Class 300. Our machine shop allows us to manufacture custom ANSI flanges to meet your project […]
Theoretical Flange Weight Calculator

Enter in the specifications and material type associated with your Flange to produce theoretical weights. Reference Diagram Metal Weight Calculator Outside Ø / Dim 1 (inches): Dim 2 (inches. For square flanges only. Leave 0 for round): Inside Diameter (inches): Bolt Hole Diameter (inches): Number of Bolt Holes: Thickness (inches): Metal or Alloy: Material Density […]
AWWA Flanges

AWWA Flanges We produce steel and stainless steel AWWA flanges for waterworks service to comply with American Water Works Association (AWWA) C207 and C228 specifications, with domestic (AIS/BABA) and import options available. AWWA Catalog Behind Reliable Waterworks What is AWWA? The American Water Works Association (AWWA) was founded in 1881 to establish and unify standards […]
Technical Resources
About Our Resources Our Technical Resources are here to provide you useful information including Spec Sheets, Product Catalog, Line Cards, Manuals, and Industry Associations. The purpose is to help you make informed product decisions when selecting from our wide variety of flanges, valves, and other pipe fittings. Line Cards, Flyers, and Brochures Product Catalog Line […]
Press Releases

Articles Our Press Release articles are here to provide you useful information about the latest news and company updates from API International, Inc. Here are our latest Press Release articles to choose from:
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Industries

1,500+ Customers Across US, CAN, & MEX Explore The Industries We Serve Waterworks Industry Data Center Industry Agriculture Industry Marine Industry Exhaust Industry HVAC Industry Mining Industry Energy & Power Generation Industries Oil & Gas Industries Lumber Industry Why IndustryExperience Matters At API International, our commitment to engineered precision, collaborative problem-solving, and rigorous quality assurance […]
Energy, Power Generation, and Oil Industries

1,500+ Customers Across US, CAN, and MEX Flanges & Custom Parts For The Energy, Power Generation, and Oil Industries With our cutting-edge solutions, encompassing the latest advancements in technology, materials, and design, we can provide products that meet the highest performance, safety, and efficiency standards. Shop Flanges OUR ROLE IN THE Energy, Power Generation, and […]
Mining Industry

1,500+ Customers Across US, CAN, and MEX Flanges & Custom Parts For The Mining Industry As a trusted name in industrial wholesale fittings, our dedication to excellence ensures that mining operations can access the products they need to optimize their processes and drive success. Shop Flanges OUR ROLE IN THE Mining INDUSTRY API International is […]