7
F.3 If fibrous conditions exist then care should be taken to
prevent the fibers from getting sucked into the air cleaner.
Provide air ducts, air curtains, nets etc. In such cases
consult OEM / Cummins.
F.4 Care to be taken, that no such fibre element shall enter/
block the air flow of alternator.
G. Exhaust System
G.1 Exhaust system should create minimum back pressure.
Higher back pressure leads to :
- Lower fuel economy
- High exhaust temperatures and related failures
- Poor performance of the engine
- Less durability of the engine
G.2 Limits for exhaust back pressure
Model mm (Inches) of Hg
KTA50G8/QSK60/S Series/ 51 (2)
Gas Engines
KTA50G3/KT2300G/VTA28/K19/ 76 (3)
NT/N14/B/C/X Series
For new installations it is recommended to have back
pressure lower by 12 mm (0.5”) of Hg than limit.
G.3 Use of thimble is must while passing the pipe through
concrete wall. The clearance around the pipe in wall is
must for free movement and expansion / contraction of
piping.
Ref. G.2
Ref. G.3
Ref. G.5
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