Steam Boiler Piping For Gravity Return; Common Near-Boiler Piping Mistakes - Crown Boiler BSI172 Installation Instructions Manual
Bsi series, gas-fired natural draft steam boilers
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Also See for BSI172:
- Specification (2 pages) ,
- Installation instruction (56 pages) ,
- Installation, operating and service instructions (56 pages)
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BO ILER
FRO NT
FIGURE 11: STEAM BOILER PIPING FOR GRAVITY RETURN
WRONG - HEADER
BULLHEADED
INTO TAKE-OFF
AND EQUALIZER
WRONG - TAKE-OFF
BULLHEADED INTO
TWO MAINS
FIGURE 12: COMMON NEAR-BOILER PIPING MISTAKES
15
14
BOILER
MINIMUM PIPE DIA. (IN NPT)
MODEL
"A"
"B"
"C"
BSI069
*
2
1 1/2
BSI103
*
2
1 1/2
BSI138
*
2
1 1/2
BSI172
*
2
1 1/2
BSI207
2
3
1 1/2
BSI241
2
3
2
BSI276
2
3
2
BSI310
2
3
2
BSI345
2
3
2
BSI379
2
3
2
* SECOND 2" SUPPLY RISER OPTIONAL
WRONG - TAKE-OFF
BETWEEN RISERS
"D"
1 1/4
1 1/4
1 1/4
1 1/4
1 1/4
1 1/2
1 1/2
1 1/2
1 1/2
1 1/2
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