Standard Bell & Gossett Steam to Water (SU) complete heat exchangers available in 2 and 4 pass units, 4″ nominal thru 10″ nominal in our catalog. Larger units available upon request.B & G Types “SU” Heat Exchangers are of the shell and tube type. The tube bundle is of “U” bend construction with tube ends expanded into a stationary tube sheet.
Removable bundle for ease of inspection and replacement.
- This design allows for differential thermal expansion between shell and tubes as well as between individual tubes.
- The result is a heat exchanger capable of withstanding thermal shock.
- The bundle design and tube layout allow for the maximum heat transfer surface area per given shell size.
- The SU/WU exchangers are also available with Diamondback double wall tube construction and heavy duty construction for high temperature applications as well as tank heater designs.
Standard Copper (tubes), carbon steel (shell, tube sheet, baffles) Optional Brass (tubes, tube sheets, baffles), bronze (heads), stainless steel (tubes, tube sheets, heads, shells, baffles), 90/10 Cu-Ni (tubes)
Standard SU Heat Exchanger with Steel Tubesheet Copper Tubes
B&G Model #SU42-4
12-Digit B&G DWG #5-260-04-024-012
New “Hard” Part #BY526004024012
Unit with Cast Iron Head Brass Tubesheet Copper Tubes
Old B&G Part #125456
12-Digit B&G DWG #5-261-04-024-002
Unit with Cast Brass Head Brass Tubesheet Copper Tubes
Old B&G Part #125455
12-Digit B&G DWG #5-261-04-024-005