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What is power
flushing?
Power flushing is the process by which heating systems are forcibly cleansed using water at high
velocity, but low pressure, so that no physical damage is caused to the system. The objective is to
restore systems with circulation problems and boiler noise problems caused by sludge and corrosion
deposits to optimum operation.
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Power flushing removes these
deposits and the problems that they cause.
Our services
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We use power flushing in two main areas:
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• New installations
Power flushing, is an excellent way to pre-commission clean new heating systems, to remove excess
flux, swarf and other debris, and the grease and oil used to prevent rusting of components before
use.
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• Existing installations
It is prudent to power flush a heating system immediately before fitting a new boiler to an
existing system to prevent possible future problems. Many systems are found to contain corrosion
and sludge, even if no flow problems have yet shown themselves.
Existing debris is often mobilised by alterations to the system/piping and by
the increased efficiency of the new boiler. This debris may then accumulate in the boiler's heat
exchanger, causing noisy operation, reduced efficiency and, in extreme circumstances, failure of
the boiler. The high efficiency and compactness of modern boilers, developed to minimise fuel costs
and pollution, means that they are more susceptible to problems caused by debris in the system
water.
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