B Series Boiler Economizers
Minimum Cost • Easy Installation • Maximum Savings
The B Series boiler economizer is comprised of 14 standard models. An “off the shelf” unit, it is designed primarily for boilers with round stacks and a combustion capacity of 40 to 800 BHP with entering gas temperatures between 300° and 700°F. The standard stack connections can be easily modified to fit specific boiler stacks with 10" to 34" diameters, alleviating the cost of stack adapters. The units come standard either with 4 or 6 fins per inch (fpi) spacings for operation with No. 2 fuel oil and/or natural gas and depending on the efficiency of the combustion. With its lightweight design and exclusive AL-FUSE™ heat transfer surface, installation is fast and costs are kept to a minimum. Use the chart at the bottom of the page to select the B Series unit that is best suited to your application.
Combustion Sources
Steam boilers and hot water boilers
Boiler Exhaust Application
Capacity: 40 to 800 BHP
Entering Gas Temps: 300°F to 700°F
Heat Sink Types: boiler feedwater, hot water return, hot water storage tank, condensate tank and process water
- Hinged stainless steel access door panels
- Internal thermal expansion design
- Mounting flanges for bolting to mating flanges or adapters
- Stainless steel internal exhaust bypass assembly
- Quick release tension latches for doors
- Optional sootblower assembly
- Vertical or horizontal installation
B Series Model Selection
| Model | BHP | H.S. | Ft2 | Dia. | Height | Weight in LBS | Stack Flange Conn.ID | Water Conn. NPT | Sootblower Conn. | Drain Catch Ring Conn. | Total Weight w/Insulation & Stblr. | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 6FPI | 4FPI | ID | B.C. | Holes | |||||||||
| B04 | 40 | 91 | N/A | 30 | 15.5 | 175 | 12 | 14 | 8 | 1 | N/A | 1/2 | 210 |
| B07 | 70 | 126 | N/A | 30 | 19.5 | 190 | 12 | 14 | 8 | 1 | N/A | 1/2 | 250 |
| B10 | 100 | 72 | 119 | 36 | 23.5 | 220 | 12 | 14 | 8 | 1 | N/A | 1/2 | 300 |
| B12 | 125 | 218 | 151 | 36 | 27.5 | 260 | 16 | 18 | 8 | 1 | N/A | 1/2 | 345 |
| B15 | 150 | 263 | 182 | 36 | 31.5 | 300 | 16 | 18 | 8 | 1 | N/A | 1/2 | 390 |
| B20 | 200 | 384 | 265 | 42 | 24.5 | 350 | 20 | 213/4 | 12 | 11/4 | 1 | N/A | 450 |
| B25 | 250 | 486 | 336 | 42 | 28.5 | 390 | 20 | 213/4 | 12 | 11/4 | 1 | N/A | 490 |
| B30 | 300 | 635 | 440 | 48 | 30.0 | 440 | 24 | 257/8 | 12 | 11/2 | 11/4 | N/A | 550 |
| B35 | 350 | 720 | 498 | 48 | 32.0 | 485 | 24 | 257/8 | 12 | 11/2 | 11/4 | N/A | 600 |
| B40 | 400 | 805 | 557 | 48 | 34.0 | 550 | 24 | 257/8 | 12 | 11/2 | 11/4 | N/A | 645 |
| B50 | 500 | 932 | 645 | 48 | 38.0 | 590 | 24 | 257/8 | 12 | 11/2 | 11/4 | N/A | 700 |
| B60 | 600 | 1059 | 733 | 48 | 42.9 | 650 | 30 | 323/8 | 16 | 11/2 | 11/4 | N/A | 760 |
| B70 | 700 | 1186 | 821 | 48 | 46.0 | 690 | 30 | 323/8 | 16 | 11/2 | 11/4 | N/A | 830 |
| B80 | 800 | 1313 | 909 | 48 | 50.0 | 750 | 30 | 323/8 | 16 | 11/2 | 11/4 | N/A | 890 |