API International is your premier choice for top-quality industrial wholesale fittings tailored to meet the diverse needs of the agriculture industry. As a leading supplier, we take pride in providing a comprehensive range of products that empower agricultural operations to thrive. Our extensive lineup includes Steel Flanges, Rubber Expansion Joints, KLAMPz Grooved Fittings, Custom-machining, and OEM solutions. With a deep understanding of the agriculture sector's unique demands, we deliver reliable, high-performance fittings that enhance efficiency, durability, and productivity. Discover how API International's products can help your role in agriculture.
We begin by understanding your goals, whether it's reducing cost, improving quality, or launching a new product. Together, we define technical and commercial requirements to ensure full alignment from the start.
With worldwide manufacturing resources, API International provides both standard and custom flange solutions. Our network of facilities and in-house expertise allow us to deliver the right fit for your needs, whether it’s off-the-shelf or built to specification.
Our engineers work closely with customers to refine designs, reduce costs, and ensure manufacturability. We stay connected with your team throughout to keep progress clear and efficient.
After final review of samples, production begins. Our team oversees quality and delivery coordination to ensure smooth execution and traceability from start to finish.
It depends on the system. Many irrigation and pump skids use ANSI / ASME B16.5 style flanges (pressure classes like 150, 300, etc.), while some water infrastructure tie ins may follow waterworks conventions such as AWWA C207/C228 or 1/2″-thick flanges. The key is matching the standard, drilling, and facing to the mating equipment.
Yes. Flanged joints are often a practical choice for slurry or farm waste lines because they provide a reliable gasketed seal while still allowing sections of pipe to be unbolted and removed for maintenance. They also simplify tie-ins to pumps, valves, and instrumentation. Because slurry and waste environments are typically corrosive, flanges are commonly specified in stainless steel or with protective coatings, along with appropriate bolting, to improve service life.
AWWA flanges are primarily used in waterworks applications and cover larger size ranges (up to 144″ in diameter) but lower pressure ratings.
ANSI/ASME B16.47 flanges are designed for industrial systems with higher pressure requirements and cover smaller diameters (up to 24″ in diameter).
ANSI / ASME B16.5 flanges cover the remaining sizes from 26”-60” in diameter.
Pressure classes are defined in AWWA as B, D, E, and F for carbon steel and as SA, SB, SD, SE, and SF for stainless steel. In ANSI/ASME pressure classes, the pressure classes are defined as 150, 300, 400, 600, 900, 1500, and 2500.
Gasket selection should be based on chemical compatibility, temperature, and pressure, not just size. For water service, common elastomers may work well, but chemical injection systems often require materials with broader chemical resistance. Provide the chemical type, concentration, and temperature so the gasket material can be matched correctly.
To order agriculture industry flanges from API International, share your pipe size, the standard you’re using (for example, ANSI/ASME B16.5 or AWWA, the pressure class, and the media/service (irrigation water, fertilizer/chemical injection, slurry or manure, washdown, etc.). Also include your material and coating requirements (carbon steel, galvanized, stainless, epoxy coating) and any facing and gasket preferences. Contact API International’s experienced team and we will help you select the right flange for your application.
At API International, our custom manufacturing capabilities set us apart. With an in-house machine shop, we transform your designs into precision parts quickly. From single prototypes to full production runs, we deliver cost‑effective pricing, dependable performance, and rapid turnaround. Flexible material options and rigorous quality checks ensure consistency from part to part.
99.5% order accuracy rate
Our boots-on-the-ground approach ensures close collaboration with our suppliers. Every flange, valve, and fitting undergoes rigorous inspection and thorough documentation, ensuring consistent performance and reduced field issues.
Active customers in all 50 states + Canada and Mexico
When your schedule is on the line, knowing our U.S. warehouses are stocked and orders ship same-day gives you peace of mind, so you can focus on the task at hand, not the clock.
700+ machined-to-spec parts created each year
Collaborate directly with our engineers to bring your unique specifications to life, ensuring every component performs as if it were built with your project in mind.
1,500+ unique customers served over 45+ years
Our dedicated account team partners with you from quote to delivery, answering questions and offering expert advice so you can make confident decisions and avoid costly delays.
