Norm Hall
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October 11, 2021
The engineer is aware of the importance of minimum flow to the pumps in hydronic systems. The R. L. Deppmann Monday Morning Minutes Part 1... READ MORE
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The HVAC engineer designing a hydronic system understands the need to protect the circulating pumps from a dead head or no flow condition. This week,... READ MORE
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Every week a question comes into R. L. Deppmann about the minimum flow rate through hydronic pumps and the best way to achieve it. Today,... READ MORE
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There is a constant flow of hydronic system design questions coming into R. L. Deppmann Company. Sometimes the questions are about complicated hydronic, steam, or... READ MORE
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Boiler Feed Unit: Pump Minimum Flow
Norm Hall
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February 8, 2021
Maintaining the required minimum flow in centrifugal pumps is key to trouble free expectations and long life. In boiler feed applications, this minimum flow is... READ MORE
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Oftentimes an engineer will specify a pump mounted on springs, vibration base, inertia base, or isolation base. Our industry tends to use a number of... READ MORE
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Hydronic Pump Piping and Trim: Pump Suction Energy Levels
Norm Hall
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March 19, 2018
I frown a bit when reading about a product and the only place you find a key tip to avoiding problems is in the troubleshooting... READ MORE
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Hydronic Pump Piping and Trim: The Pump Suction
Norm Hall
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March 12, 2018
The piping at the suction side of the pump is the most important and, for some engineers and designers, the most misunderstood part of hydronic... READ MORE
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Pump installations tend to require a great number of spool pieces to meet the Hydraulic Institute’s and the equipment manufacturers’ recommendations. Before we get into... READ MORE
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Hydronic Pump Piping and Trim: Suction Diffuser Fittings
Norm Hall
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February 26, 2018
Pump suction piping is one of the areas where problems of frequent repair or noise will originate. There is a lot of confusing information out... READ MORE
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