Exhaust Pipe - Vetus WLOCKLT Instructions D'installation

1 Introduction
The Vetus exhaust system components are especially suitable for use
in water-injected exhaust systems.
The maximum continuous operating temperature of the plastic com-
ponents of the exhaust systems is 70 degrees C (158 degrees F).
- Fit a temperature alarm to warn of excessively hot exhaust
system temperature.
- If the quantity of injected coolant water is reduced to in or-
der to lower back-pressure in the exhaust system, check that
there is still sufficient water injected when the engine is tick-
ing-over. This will prevent excess temperatures in the exhaust
system.
- Excess temperature can also be the consequence of insuffi-
cient mixing of coolant water with the exhaust gasses.
In general, good mixing is obtained by a virtually vertically
installed exhaust injection bend.
Poor mixing can also occur with an engine on tick-over; espe-
cially when the coolant water injection bend is installed virtu-
ally horizontally.
If necessary, take action. For example; by fitting a water vor-
tex or a water splitter in the exhaust pipe, to improve the mix-
ing of coolant water with the exhaust gasses.
With water-injected exhaust systems, fit a hose of suitable quality.
This hose must be reinforced, resistant to exhaust gasses, high tem-
peratures (100 degrees C, 212 degrees F) and oil. Easy flexibility is
essential for installation, while the hose must not collapse when
heated.
Vetus exhaust hose fulfils all the above requirements.
Engine power to:
18 kW (24,5 hp)
22 kW (30 hp)
28 kW (38 hp)
39 kW (53 hp)
63 kW (86 hp)
89 kW (121 hp)
114 kW (155 hp)
If water enters the engine from the exhaust silencer into the
exhaust system (for example: under sail when the ship rolls or
pitches heavily) this will lead to irreparable damage to the en-
gine.
Too much water in the silencer can effect engine starting; drain
off this water first. Too much water in the silencer can be also
caused by repeated starting attempts while the engine refuses
to start.
4
030414.02
Hose dia.:
ø 40 mm (1 9/16")
ø 45 mm (1 3/4")
ø 51 mm (2")
ø 60 mm (2 3/8")
ø 76 mm (3")
ø 90 mm (3 1/2")
ø 102 mm (4")
W
arning
2 Installation
2.1 Installing goose neck LT
Fit the goose neck in such a way that its top is at least 45 cm (18")
above the waterline. In a sailing ship, the goose neck should be
installed as close to midships as possible.
min. 45 cm
(18")
All goose necks have a horizontal outlet as standard. It is also pos-
sible to make a vertical outlet on types LT 40/45/50/60. Section A
should then be sawn off. Carefully de-burr the edges.
If possible, the goose neck should be fitted immediately above the
exhaust silencer, see drawings 3 and 5. This will reduce the amount
of water running back between the highest point and the silencer.
When the goose neck is fitted directly on the transom connection,
then the exhaust pipe maximum length between the silencer and
the highest point must be taken into account, see drawings 4 and 6.
2.2

Exhaust pipe

In order to ensure the proper drainage of the coolant water injected
into the exhaust pipe, the pipe must be installed with a slope down-
ward over its whole length from the water injection point to the ex-
haust silencer.
During operation, the exhaust pipe will contain water. This will in-
crease its weight considerably, so support the exhaust pipe properly.
The exhaust pipe from silencer to transom connection must be in-
stalled in such a way that:
- The highest point in the exhaust pipe should not be more than 150
cm (60") above the underside of the exhaust silencer.
- The length of the section between the exhaust silencer and the
highest point, should not exceed 300 cm (120").
min. 45 cm
(18")
De-burr
W.L.
Goose neck LT
W.L.
A