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Pressure washers overview

Pressure washers direct a high-pressurecosts compared to intensifiers, but at high
stream or jet of water against a surface topressures (>20,00 psi) seals must be
clean, descale, degrease or prepare aperiodically replaced. Crankshaft driven
surface. Pressure washers may use eitherplunger pumps also provide a virtually ripple
cold water or hot water and steam to performfree pressure source in comparison to
their function, and the water is often mixedintensifiers. An accumulator may be required
with various cleansers, detergents orto smooth out pressure fluctuations if an
solvents. They are used for cleaning, or forintensifier  pump  is  used.
the demolition of products made of metal,
wood, concrete, stone, plastic, glass orDust collection or filtration systems remove
other  building  materials.fine particle sizes of abrasive, swarf,
grease or other blasting waste (removed scale
Pressure washers are available as completeor stock in the form of dust or fine swarf)
machines or systems, or they can be purchasedthat would otherwise contaminate the
in component form and built from the groundenvironment.
up, or to replace worn out parts. Specific
available parts include the gun or lance, thePressure washing cabinets are glovebox-like
pumping unit, separators or reclaimers,vessels that hold the workpiece and the
filtration system, blast cabinets and blastblasting process. Wash cabinets usually
rooms, water blast wheel, and water storageconsist of a chamber with glove ports,
tank.viewing window and internal lighting. The
workpieces rest on an open grid that allows
The gun or lance directs the stream fluidused wash fluid to drop through for
(air or water) through a nozzle and at therecycling. The operator may hold the washing
appropriate region of the workpiece. Somenozzle on the end of a lance. The workpieces
pressure washers have wear resistant nozzlesrest on open grid flooring that allows used
and optional abrasive injectors to providewater and/or cleanser to drop through for
wet  sandblasting  capability.recycling  or  treatment.
The pumping unit is the pressure generatorThe water blast wheel propels and directs a
used to force out the carrier fluid at highwide stream of abrasives and carrier (water
velocity. Plunger-type intensifier pumps areor air) at the appropriate region of the
commonly used to generate high-pressure waterworkpiece.
for water jet cutting and wet or water
abrasive blasting for non-abrasive pressureWater tanks or hoppers are used by pressure
washing or rinsing. Crankshaft driven plungerwashers for the storage of dry abrasive
pumps are commonly used for pressuregrains, blasting media or abrasive-water
generation. Crankshaft driven plunger pumpsslurry mixtures.
may be more efficient in electrical energy



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