Our machine shop enables API to manufacture custom flanges and other products that meet a wide variety of specifications that utilize AIS, import, and exotic materials. We also support fast turn modifications to our stock items in order to meet customer needs. Whether you have a CAD drawing or sample that needs to be reverse engineered, we can work with you on prototyping, production quantity manufacturing and even warehousing product.
Experience with a wide variety of products, sizes, materials and specifications.
Short lead times that allow you to get products to customers when they need them.
QC personnel work with modern technology to verify that all of our products meet your project requirements and abide by current regulations.
Our machine shop’s vast knowledge of tooling and fixturing can help reduce your production cost, especially on your high volume products.
At API International, our commitment to engineered precision, collaborative problem-solving, and rigorous quality assurance helps reduce your total cost of ownership. We streamline manufacturing workflows, eliminate errors, minimize design revisions, and ensure product dependability, delivering integrated solutions that save you time, money, and operational stress.
Milling
Turning
Materials
*Tooling can be added quickly in order to work with almost any material
Tolerances
| Part Size (max) | Tolerance (inches) |
|---|---|
| 21″ | ± 0.001 |
| 42″ | ± 0.010 |
| 60″ | ± 0.031 |
| 118″ | ± 0.063 |
Here are some of the machines that allow us to manufacture custom flanges and other fittings. They can make modifications to standard parts, like overboring, counterboring, different bolt holes and surface finishes.
We start the process by receiving raw material.When material arrives, it first goes through receiving inspection. Our receiving inspector performs an initial check per the work order, measuring two points on the material to verify callout dimensions. This confirms that
Plate flanges are fabricated by cutting profiles from flat carbon or stainless steel ASTM specified plate. Subsequently, they are machined to precise specifications, including bolt hole patterns and center bores. While forged flanges are shaped under high pressure or force
The real issue behind most mismatches Most flange mismatches happen because people assume all flanges are the same. In reality, flanges from different manufacturers can vary in size, pressure rating, material, and bolt hole pattern.To avoid these problems, always double-check
To design a safe and reliable piping system, it is critical to select the appropriate ASME/ANSI flange. Properly chosen flanges must be able to accommodate operating pressure, temperature, mechanical loading, and environmental exposure. On the other hand, if a flange
DIN flange pressure ratings are defined through the PN system (e.g., PN10, PN16, PN25) and standardized under EN 1092-1. The standard specifies flange dimensions, bolt patterns, and rating principles for metric piping applications. This article explains the DN/PN designation structure,
The primary advantages of ASME/ANSI flanges lie in their rigorous standardization, ensuring seamless interchangeability and compatibility across global piping systems. Designed for robust performance, these flanges maintain structural integrity in extremely high-pressure and high-temperature environments. Beyond their mechanical strength, standardized
1. The simplest way to explain what a flange is A flange is a lip. Try to grab a smooth pipe, and your fingers slide off. When you flare the end of the pipe, you create a small lip you
DIN and ANSI / ASME flanges are governed by two completely different standards systems which are used in piping, mechanical, and industrial engineering. While both of them define flange dimensions, pressure ratings, materials, and tolerances, they are still built on
ANSI/ASME flanges are a foundational component in industrial piping systems, as they provide standardized, pressure-rated connections between pipes, valves, equipment, and vessels. Governed by ASME standards and associated with ANSI, these flanges are used across a wide range of operating
Deutsches Institut für Normung (DIN) is one of the standards organizations that complies with European and International standards. DIN sets industry guidelines for quality assurance and safety, including flange materials requirements and pressure and temperature rating. DIN flanges are widely
