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.
Materials:
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