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Bell & Gossett Shell and Tube Heat Exchangers
Fifteen Catalogued Ranges for Steam, Water, Oil and Gas
Bell & Gossett built its shell and tube line around one idea: a removable U-tube bundle in a steel or brass shell, sized so that a standard catalogue number covers the great majority of hydronic and process duty. Steam condenses in the shell on one half of the family and pumped liquid circulates through it on the other, with double-wall construction where potable water is involved and dedicated ranges for oil, gas and compressed air. The ranges below cover shell diameters from 2 to 30 inches, tube-side ratings to 400 PSI and temperatures to 1000°F.
Shell and Tube
U-tube, double-wall U-tube, fixed tube and heavy-duty construction. What each arrangement does about thermal expansion and pressure, and which duties it suits.
Tank Bundles
Bundles that mount through a tank nozzle, where the tank becomes the shell. Sized on tank volume, temperature rise and the recovery time you need.
Applications
HVAC, industrial, domestic hot water and food and beverage duty. What each application asks for and which range answers it.
Choosing Between the Bell & Gossett Ranges
Start with what is on the shell side. If it is steam, the unit is an SU. If it is pumped liquid, it is a WU. The two share their bundle, bonnet and shell construction but differ in baffling, connection sizing and rating, so they are not interchangeable even where the dimensions look alike.
Then check what is being heated. Where a non-potable medium warms potable water, many jurisdictions require a second barrier between the two. The DSU and DWU provide it with vented double-wall tubes, and they are physically larger than their single-wall equivalents for the same duty.
Then the pressure at the exchanger. In a tall building, static head alone can exceed the standard 150 PSI tube-side rating before any pump head is added. The HTWU carries 400 PSI on the tube side as a catalogued option rather than an engineered build.
Beyond that the range narrows quickly: OC for oil, GC for hot gas, aftercoolers for compressed air, and tank heaters where the fluid is stored rather than circulated. Call 1-805-484-2992 or email Sales@HeatX.com and we will work through the selection with you.
