A weld neck flange starts as a solid steel billet and ends as a precisely machined component with a tapered hub and beveled weld end. The manufacturing process of weld neck flanges includes heating, forging, and machining steps. Those steps
The new product line adds NSF/ANSI/CAN 61 and NSF/ANSI/CAN 372 certified stainless steel flanges to API International’s waterworks offering TUALATIN, Oregon, September 1st, 2026 – API International, a manufacturer and engineered solutions provider of standard and custom flanges, fittings and
If a flange is installed in a North American drinking water system, the spec sheet is almost certain to reference NSF®/ANSI/CAN 61 before any other standard. NSF/ANSI/CAN 61 determines whether a flange, gasket, or coating is permitted to contact potable
NSF-61 and NSF/ANSI/CAN 372 are two consistently paired standards which are often called “NSF-61/372” and treated as one certification. strict limits on lead content leaching in drinking water systems. This standard has its own legal basis and its own testing
Warehouse Expansion Supports Data Centers, Exhaust, Waterworks, and HVAC Markets FOR IMMEDIATE RELEASE GREENFIELD, Ind., August 17th, 2026 — API International has completed a major expansion of its Greenfield, Indiana, warehouse, increasing its Midwest warehouse capacity by 75% while positioning
A weld neck flange features a tapered hub that is butt-welded directly to a pipe, creating a continuous, full-penetration joint. This design makes it the industry standard for high-pressure, high-temperature, cyclic, and heavy-use applications across process plants, power facilities, and
Selecting the right carbon steel flange begins with understanding your application, including its service conditions, required material grade, and appropriate flange type. Getting one of these wrong may not cause an immediate problem, but issues typically surface later, during pressure
Carbon steel and alloy steel flanges serve different purposes based on the demands of the piping system. Both of them share a common structural base, but each is engineered for a different kind of service. Carbon steel delivers reliable strength
Carbon steel flanges are specified across nearly every industrial and municipal piping sector, from municipal water mains to power plants, chemical processing lines, and structural piping. The grade, configuration, and governing standard vary by application. This guide covers some instances
Carbon steel flange specifications cover several main areas, including material grade, dimensions, and pressure rating. The material grade determines the type of steel used, while dimensional and pressure requirements control the flange’s size, construction, and operating limits. This guide explains
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