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.
“API is both very timely and responsive to customers while providing excellent customer service, great quality products, and fostering and maintaining excellent relationships with their customers.”
“Fantastic customer service! API is a great company to work with, their employees are great, and their products are as well!”
“API does a really good job of helping our company and we appreciate the partnership. API has the ability to work with us on special project pricing and lead times.”
“We have been purchasing flanges & fittings from API for over 25 years. Excellent customer service from management to sales staff and timely delivery has helped us to keep our customers happy.”
“API is very quick with quotes and getting back to us on PO status. I have no complaints on my end.”
“Our service experience and company relationship with API has been great. API provides an excellent service experience for their customers.”
“API has been a go to flange supplier for over 20 years. Their extremely fast order processing makes placing and receiving orders seamless.”
“Great customer service. Always a pleasure to work the guys at API. Have been doing business with for 20 years.”
“I am happy with the responsiveness and time frame in which quotes are given. I do not have anything negative to say and think they are doing a good job.”
The American National Standard Institute (ANSI) Sectional Committee B16 has been defining publishing safety and dimensional standards for piping systems since 1922. Sectional Committee B16 was reorganized as an ASME (American Society of Mechanical Engineers) standards committee in 1982 with
Slip on flanges and blind flanges, two of the most common options, serve very different roles within the same piping system. Slip-on flanges provide cost effective connection points for pipes and equipment, while blind flanges ensure a secure closure at
ANSI/ASME flanges are built specifically for high-pressure piping systems, as they can maintain a reliable seal under demanding conditions. They work by compressing a gasket between two machined flange faces using bolts. This creates a controlled, leak-proof seal that is
ASME/ANSI flanges are standardized components used to connect pipes, valves, pumps, pressure vessels, and other equipment in industrial piping systems. The modern standards governing these flanges are published by the American Society of Mechanical Engineers (ASME). People often call these
In piping projects, slip-on flanges offer several key benefits: lower cost, easier installation, standardized pressure ratings, and the ability to handle large-diameter lines with minimal preparation. They are recognized in standards such as ASME & AWWA, and are available in
Slip-on flanges are a practical choice across many industrial settings, valued for their cost-effectiveness, ease of installation, and reliable performance under moderate conditions. Even though they are not designed for the highest pressure or most demanding service lines, they still
Slip on and weld neck flanges represent two distinct approaches in piping connections, each with specific advantages and trade offs. This guide reviews the pros and cons of slip on and weld neck flanges, explaining how they differ and when
In this introduction to flanges, we’ll cover what flanges are, how they’re made, and the different ways they connect piping systems. The article also provides an overview of pressure and temperature ratings, material options, and industry standards that guide proper
Flanges play an essential role in connecting pipes, valves, pumps, and other piping equipment in a way that allows disassembly and maintenance. Slip-on flanges are widely used because of their ease of installation, moderate strength, and comparatively low cost. Below,
Pipe flanges are made to be able to withstand extreme conditions and provide long-term service. Yet in practice, these parts remain one of the most vulnerable pieces in piping systems. Failures often happen at the flange joint because of their