exhaust water separation

MS4000 for 40mm (1.5") exhaust systems.
Gas outlet 40mm.
MS5005 for 45mm and 50mm
exhaust systems. Gas outlet 50mm.
MS5010 for 50mm exhausts systems.
Gas outlet 50mm.
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89 125
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YACHT BUILDERS USE HALYARD’S
MILLENNIUM SEPARATOR RANGE TO
REDUCE NOISE FROM GENERATORS,
AS WELL AS HALYARD’S CUSTOM GRP
UNITS ON PROPULSION ENGINES.
MAJOR PRODUCTION
BOATBUILDERS THROUGHOUT
EUROPE SPECIFY HALYARD’S
MILLENNIUM SEPARATOR RANGE.
Picture courtesy of Fairline Boats Ltd
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38
306
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Picture courtesy of Oyster Yachts Ltd.
MS5015 for 60mm and 63.5mm (2.5")
exhaust systems. Gas outlet 50mm.
MS5020 for 45mm and 50mm
exhaust systems. Gas outlet 50mm.
MS5025 for 50mm exhaust system.
Gas outlet 50mm.
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89 125
306
112 125
306
112 125
306
306
306
164
133
83
38
38 38
MS5030 for 60mm and 63.5mm (2.5")
exhausts. Gas outlet 50mm.
MS7505 for 76mm (3") exhaust systems.
Gas outlet 76mm.
MS7510 for 76mm (3") exhausts.
Gas outlet 76mm.
THE SCIENCE OF SILENCE
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371
100 180
371
143 180
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371
NOISE RESULTS
The exhaust from most generators,
using Halyard’s lift silencer allied to
Halyard’s water separator, is effectively
inaudible in all but the quietest
environments. Not only this, but water
separation dramatically reduces engine
back pressure. This allows huge design
flexibility for propulsion engines as well as
generators – particularly on larger yachts
with long and tortuous exhaust hose
runs from the engine to the stern.
Test using 50hp marine diesel
The new Millennium Separator range uses
the knowledge acquired during 15 years of
development work by Halyard. Each
model was carefully and extensively tested
before the sophisticated production
tooling was commissioned, allowing bulk
production to reduce the cost.
The new Millennium Separator range
achieves seven vital objectives:
• The unit is reversible – it can be
positioned pointing right or left.
• Most have a choice of horizontal or
vertical outlet.
• Outlet is at maximum height,
facilitating safe exhaust design.
• No joints or seals – the one-piece unit
removes the risk of leaks.
• High melt point. Although the
separator is fitted behind the silencer,
the high temperature material
minimises the risk of melting in an
exhaust overheat situation.
• Effective separation. Water separation
is almost 100%, apart from
condensation in the dry hose run
behind the separator.
• World-beating value for money.
Halyard’s water separator range is used
by boat builders and generator
manufacturers throughout the world, on
generators up to 500kw. The Millennium
Separator range is designed for
production boats with generators up to
approximately 40kw.
A GRP prototype of the new Millennium
Separator series in test at Halyard.
The test uses a transparent front to study
gas and water flows.
SYSTEM DESIGN
Good exhaust design depends on the
engine position relative to the waterline.
A typical generator exhaust leaves the
engine and drops to a lift silencer, then
rises to the water separator mounted well
above waterline. This forms a high point,
or gooseneck, in the system. The drop
from the engine, and the high point,
protect the engine from seawater coming
in through the outlet when the engine is
stationary. The layout is vital to protect
the engine from sea-water. The Fitting
Instructions give more information and
our staff are happy to advise given
detailed installation sketches.
MS4000 separator for 40mm/1.5"
exhausts, with water separation capacity
of 18 litres per minute.
MS5000 separator for 60mm and 2.5"
exhausts, with water separation capacity
of 42 litres per minute
MS5000 separator for 50mm/2"
exhausts, with water separation
capacity of 42 litres per minute.
MS 7000 separator for 75mm/3"
exhausts, with water separation capacity
of 65 litres per minute.
164
38 50
50
Halyard manufactures an enormous range
of larger GRP silencers and water separators for
generators and propulsion engines up to 3,000hp.
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100