Piping | On-Site Power Advisor

What’s the Difference Between Exhaust Flex Connectors and Bellows?

June 24, 2017June 17, 2017 by David Hurtado

Every emergency generator application includes an exhaust system designed to route exhaust gases out of the engine room. These exhaust systems consist of piping, elbows and, very importantly, flexible sections that must be used to account for the engine’s vibration, and also for the pipe growth experienced as the exhaust gases quickly rise to 800°F and more. If you are designing the exhaust system for an emergency generator, this article may keep you from making one of the most common mistakes that I see in the field.

Secondary Containment Steel Piping for Fuel-Oil Applications

August 10, 2022July 16, 2014 by David Hurtado

Specifying fuel-oil piping for below-ground installations is a sensitive area of design, due to the potential for leaks and the subsequent contamination of ground water. In most jurisdictions, regulatory agencies will require secondary containment and interstitial space monitoring for any fuel oil piping that is in contact with the soil. This article describes a popular example of a secondary containment steel piping system, and two related devices designed for automatic leak monitoring.

From our clients!

I am a novice on fuel systems and needed help with a detail, David jumped in and gave me direction and assistance. Thanks David

Jeff Hawkins

I was introduced to David by a coworker who insisted I speak with him for a fuel project design. It has been the best advice given to me. David is a fountain of knowledge and is more than willing to help and provide service. He has been an invaluable source of information for me.

Ricardo Martinez

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From a consultant point of view his work has been exceptional. Have a great day…

Luis Silvestre

David has been an excellent asset for Fuel Oil system design. I am extremely grateful for all of his help!

Joshua Rose

I recently completed a fuel oil system design associated with (2) 2.5 MW emergency standby generators and worked closely with David for equipment design support associated with bulk storage tanks, day tanks, pump skids, filtration skids, fueling ports and controls. It was the first time that I worked with David and found the experience to be nothing short of excellent. I appreciated David's expertise and advice provided in selecting equipment and drilling down into details. David was always very responsive and went out of his way to make sure I had everything needed to complete my work and to answer all my questions during and after business hours. It's nice to work with folks that understand the equipment they represent and have a passion for the finer details. David has an excellent understanding of the equipment and was very enjoyable to work with. I look forward to working with David on our next project.

Vincent Vitale PE

I was very impressed the first time I dealt with David. I was recommended to David’s company by our Cummins sales representative, and David helped me thru my first fuel delivery system project for a Florida Assisted Living Facility. He does not just send general cut sheets of systems, … but details such as pump HP values, cables sizes, fuel piping sizes, sensor requirements, etc. I would recommend him highly to anyone struggling with fuel system design.

Gary Wall, PE, LEED