Z001007/0_4_September 2007
Page EXHAUST SYSTEM-3
EXHAUST SYSTEM
INSTALLATION INSTRUCTION
8. EXHAUST SYSTEM
8. 1. GENERAL
Install the exhaust line with as few as possible bends and as high as possible curve radius. Provide sufficient
pipe diameter to keep the backpressure within admissible values. (see 8.7)
The exhaust system may be designed in 3 different ways:
1
Dry exhaust pipe, insulated
2
Wet exhaust pipe (water flow in the pipe)
3
Exhaust pipe with water jacket (double-walled, water-cooled)
The dry exhaust pipe releases large amounts of heat into the engine compartment thus requiring good insulation.
The wet exhaust pipe and the exhaustpipe with a water jacket are cooled and therefore mostly do not need
insulation. The water flow in the exhaust pipe also has a noise-absorbing effect.
8. 2. MATERIALS
Exhaust gases from a Diesel engine also contain sulfur compounds which mixed with water may corrode the
metals. For this reason, copper tubes are unsuited for exhaust pipes.
Exhaust pipes with cooling jackets are to be made of acidproof steel tubes, to guarantee satisfactory service life.
In case of water inlets into the exhaust pipe, the line may be made completely or partially of special exhaust rubber
hose.
Dry exhaust pipes are preferably made of acidproof steel tubes. Pipess made of stainless or galvanized steel
tube also guarantee a relatively satisfactory service life.
8. 3. DRY EXHAUST PIPE
Scheme of a dry exhaust pipe
for 2 engines
ill.8/1