Brochure

Low pressure losses and performance maintained over time
The dirt separating action performed by the dirt separator is based on
using the internal element with radial reticular surfaces instead of an
ordinary fi lter. The element offers little resistance to the medium fl ow
while ensuring dirt separation. This occurs due to the particles colliding
with the radial reticular surfaces and then settling to the bottom, and not
by fi ltration; which, over time, gets progressively clogged. By contrast,
the DIRTMAG
®
low velocity- zone dirt separator with magnet effi ciently
removes the particles to a very small size with very low pressure head
loss.
Geometric structure and large dirt collection chamber
The geometrical structure of DIRTMAG
®
reduces the flow media
velocity to help separate dirt particles. The dirt collection chamber has
the following features:
• It is located at the bottom of the device at such a distance from the
connections that the collected dirt is not affected by the swirl of the
fl ow through the mesh element.
• It has enough capacity to increase the amount of dirt stored and
therefore decreases the frequency of emptying it compared to fi lters
that need to be cleaned frequently.
• It is easily inspected, by unscrewing it from the dirt separator body for
servicing the internal mesh element when large debris are trapped in it.
Separation of ferrous impurities
This series of dirt separators, complete
with a magnet, offer greater effi ciency in
the separation and collection of ferrous
impurities, including magnetite. The impurities
are trapped inside the dirt separator body
by a strong magnetic fi eld created by a
removable rare-earth magnet around the
body below the fl ow line for fast and effective
capture of ferrous impurities.
The magnetic ring can also be removed
from the body for discharge of impurities
while the system is still running. Since the
magnetic ring is positioned outside the
dirt separator body and causes no added
system pressure drop, high performance
hydraulic characteristics are maintained.
Ferrous impurities, including magnetite, form
in hydronic systems when iron or steel corrodes. The abrasive, extremely
fi ne sediment is diffi cult to remove and can deposit onto heat exchange
surfaces and accumulate in pump cavities causing reduced effi ciency
and premature wear. The DIRTMAG
®
accomplishes 2 1/2 times the
ferrous impurities removal performance of standard dirt separators,
delivering up to 100% elimination effi ciency. Captured impurities are
easily fl ushed by unclamping the ring and purging - even with the
system still operating.
Construction details
Engineered polymer
The dirt separator is constructed of a polymer specifi cally selected
for heating and cooling system applications. The main features of the
composite polymer are:
- high strength to strain, while maintaining good ultimate elongation
- good resistance to crack propagation
- very low humidity absorption, for consistent mechanical performance
- With continuous medium fl ow, the polymer has a high resistance
to abrasion
- Continuous performance over wide temperature variations
- Compatible with glycols and additives used in circuits.
These basic material characteristics, combined with the optimal
body design in the most highly stressed areas, provides operating
performance equivelant to metals typically used in the construction
of dirt separators.
Adjusting the body to horizontal and vertical pipes
Featuring a special coupling
between the locking nut and the
tee pipe fi tting, the DIRTMAG
®
dirt separator can be adjusted (1)
for installation to either horizontal
(2) and vertical (3) pipes, while
maintaining the same operating
performance.
Operating principle
The operating principle of the magnetic dirt separator is based on the
combined action of a number of physical phenomena.
The internal element (1) consists of a set of radial reticular surfaces.
As the water or glycol solution strikes these surfaces, the impurities
are separated, dropping into the bottom of the body (2) where they
are collected.
Ferrous impurities, including magnetite, are trapped inside the dirt
separator body, attracted by powerful magnets (3) inserted into
a special removable outer ring. The large internal volume of the
DIRTMAG
®
slows down the velocity of the medium and with the help
of gravity, separates the contained particles. The collected dirt can
then be discharged by removing the magnetic ring and opening the
drain valve (4); this procedure can be performed while the system is
in operation.
Locknut
Brass Tee
Pipe Fitting
Engineered
Polymer Body
Dosing Point
2 3
1