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The evolution of boilers and pressure vessels spans centuries, marked by pivotal advancements in design and safety standards, from the early developments in the 17th century to the establishment of the ASME Boiler and Pressure Vessel Code, ensuring uniformity in design, construction...

Learn about the top advantages of partnering with a multi-trade contractor for your construction projects and how JF Ahern’s multi-trade services can help.

There are many environments that promote corrosion. The atmosphere in certain industrial environments can contain metal oxides, chlorides, sulfides, acids, and other mediums that serve as electrolytes and promote corrosion.

What is PFAS? Perfluoroalkyl and polyfluoroalkyl substances, more commonly known as PFAS, have become a hot topic in nearly every industry in the past several years. These chemicals have faced scrutiny for potential long-term health and environmental impact, leading to new legislation...

Pressure vessels and boilers are widely used across industries for many purposes. They are available in varied specifications and an array of materials, with temperature and pressure limitations. There are many factors to consider when it comes to setting vessel specs and choosing the...

Having been in the sprinkler fire protection industry for almost 40 years now, I have seen many changes as products and installation methods change and improve. One of the biggest changes in our industry would be the use of antifreeze but let’s step back before we move forward.

written by Fire Protection Designer Alex Bielewicz The design requirements of a sprinkler system can become complicated when FM Global sprinkler requirements need to be considered in addition to the typical requirements of NFPA 13 – Standard for the Installation of Sprinkler Systems .

Welcome to 2020 and staying connected. What does staying connected mean to you? In 2020, we have experienced new levels in daily communication through Zoom Meetings, Microsoft Teams, and Webex to name a few. Receiving countless and ever-changing news from local and national media...

Faced with the challenge of an outdated and no longer supported software and after much testing of different modeling software options, Ahern's pipe groups (Piping Design and Pipe Fab Drafting) decided to switch to AutoCAD Plant 3D. The old modeling software company was moving in a...

Faced with the task of renovating an existing pump area of a waste water treatment plant with limited on-site personnel available to verify existing conditions, Ahern turned to 3D laser scanning as an alternative method to quickly and accurately digitally document the existing...

Ahern recently completed a project for a large hospital that required an as-built Revit model. Learn how we did it and what we've learned for future Revit model projects.

Often while working in CAD, designers are required to perform multiple tasks to complete a desired process. This is where LISP routines come in. LISP routines process large amounts of data and combines multiple functions and commands into a single process. Reducing the amount of...

Construction layout and surveying is all about accuracy. Until recently, these processes were performed manually by multiple people, and took a great deal of time and effort. The emergence of robotics and laser technology, however, has made the layout process faster, less labor...

BIM is a broad term that stands for “Building Information Modeling”. BIM is used to help depict sequences of activities during a project, clarify spaces, and identify design conflicts between structural and mechanical trades. Why would you want to use BIM on a project?

Downtown metro space is becoming more and more valuable. Because of this, many buildings are built for more than one purpose, making them non-traditional when it comes to design.

By CAD Designer, Ahern Fire Protection-Des Moines Flexible sprinkler drops are hose assemblies that consist of sprinkler pipe fittings to attach to the branch line and the sprinkler with a flexible hose between. These flexible sprinkler drops are used to replace the hard drops out of...

The duplication of identical welding symbols on a drawing may be avoided by designating a single welding symbol as “TYPICAL” (abbreviated as “TYP”) and pointing the arrow to the representative joint. The drafter shall provide additional information to completely identify all...