Quantcast Boilers-Continued - mo322_20095

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MECHANICAL
Boilers-Continued
fly ash deposits
flame leakage
localization of heat
deteriorated or loose tie rods and buck stays
n
Fusible Plugs:
poor condition
unsound metal
in service more than one year
exposed to steam temperature in excess of 425F
n Setting:
improper level
tendency to settlement
inadequate provision for expansion and contraction
excessive corrosion
holes
cracks
slippage
distortion
binding
loose bricks
improper air space
poor insulation of steel supporting members
excessive vibration
n Furnaces and Baffles:
spalling
settlement
distortion
abnormal cracks and seams
excessive burning and corrosion
6-12





 


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