It can be frustrating to hear a reference to something and not understand what they are talking about. For this reason we want to explain what Delta T is in relation to the heating industry. While no one expects you to remember the Greek alphabet in its entirety, unless you were educated in Greece of…
This article gives great advice on when shutting down for regular scheduled maintenance. Follow the five P’s of maintenance shutdown for a smooth and easy going experience. Routine maintenance shutdowns of thermal fluid systems involve a staged process before, during and after the operation to reduce the amount of idle time incurred in the plant….
Electric Tank Heaters are necessary for accurate control of liquid and gas temperatures in a variety of uses, including storage tanks, railroad tanks, and smaller tanks and basins. Heatrex has been designing and manufacturing heating systems since 1929 for a wide assortment of industrial, marine and commercial uses. We have a wide variety of electric…
Normalizing is a thermal process often associated with forgings. Why do we normalize? The following article answers just that question. Normalizing imparts both hardness and strength to iron and steel components. In addition, normalizing helps reduce internal stresses induced by such operations as forging, casting, machining, forming or welding. It also improves microstructural homogeneity and…
Have ever wondered how to calculate heat loss? This article, published in Process Heating, goes over the basic principles of heat transfer as well as the calculations that are used for pipes and vessels. Read more here. Figure 1 (below) depicts a sectional view of a typical pipe system. It consists of the pipe, insulation,…
It is important when selecting your circulation heater to choose the proper watt density and sheath material. If done correctly, selecting the right sheath material and watt density will provide your heater with a longer life and greater fluid integrity. Follow the guidelines below and use the information to help guide your decision making process. Watt…
There are several different types of marine heaters available at Heatrex. They range from circulation heaters to immersion elements, each one designed to fill a specific marine application. It is important to match the type of heater with the intended use, both for safety and satisfactory operation. Take a look at some of the marine…
At Heatrex we have three different types of electric duct heaters, this includes our finned tubular heater, explosion-proof & corrosion resistant heater, and our open coil heater. Depending on your needs, our heaters can be custom designed from the most simple to the most sophisticated of systems. Take a look at the types of duct heaters…
