CALEFFI 577 Series User manual

www.caleffi.com
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577 Series
XF Xtra Filtration magnetic dirt separator
© Copyright 2024 Caleffi
Function
The Caleffi XF “Xtra filtration” magnetic dirt separator protects
components in hydronic systems by maintaining impurity-free
hydronic fluid to maximize heat transfer efficiency. The XF has a
collision media for removing non-magnetic debris, a magnet to
capture ferrous materials, and a 160 μm mesh filter to remove fine
particle impurities starting with the first pass of the fluid.
It is perfect for heat pump and boiler applications. The unique
internal brush mechanism cleans the filter for simple and efficient
purging. The XF can be mounted in vertical or horizontal applications
due to its rotating collar.
Product range
577 Series NPT male union size 1”
NPT female union sizes 1-1/4”, 1-1/2”
Press, sweat union sizes 1”, 1-1/4”, 1-1/2”
NA10945
Technical specifications
Materials
Body: PA66G30
Upper cap: brass EN 12164 CW617N
Purge screw: brass EN 12164 CW617N
Locking nut for tee fitting: size 1”: PPSG40
sizes 1 1/4” and 1 1/2”: brass EN 12420 CW617N
Tee fitting: brass EN 1982 CB 753S
Internal element: PA66
Hydraulic seals: peroxide-cured EPDM
Internal brushes: PA66
Magnets: neodymium rare-earth
Performance
Suitable fluids: water, glycol solutions
Maximum percentage of glycol: 30%
Max. working pressure: 45 psi (3 bar)
Operating temperature range: 32 to 195 °F (0 to 90 °C)
Body internal volume: size 1”: 0.5 quart (0.53 liter)
sizes 1 1/4” and 1 1/2”: 0.6 quart (0.63 liter)
Filter mesh size: 160 μm
Magnetic induction: 3 x 0.475 T
Connections:
size 1”: NPT male union
sizes 1-1/4” and 1-1/2”: NPT female union
sizes 1”, 1-1/4” and 1-1/2”: press, sweat union

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CAUTION: Make sure that all the connecting pipework is water tight.
CAUTION: All work must be performed by qualified personnel trained in the
proper application, installation, and maintenance of systems in accordance
with all applicable codes ordinances.
CAUTION: Over-tightening and breakage can occur with the use of Teflon®
pipe joint compounds. Teflon® provides lubricity so that care must be
exercised not to over-tighten joints. Failure to follow these instructions could
result in property damage and / or personal injury.
CAUTION: System fluids under pressure or temperature can be hazardous.
Be sure the pressure has been reduced to zero and the system temperature
is below 100 °F (38 °C).
CAUTION: If the device is not installed properly, according to the instructions
contained in this manual, it may not operate correctly and may endanger the
user.
Caleffi shall not be liable for damages resulting from stress corrosion, misapplication or
misuse of its products.
CAUTION: Clean the pipes of any debris, rust, incrustations, welding slag
and any other contaminants. For optimal operation, air in the system must
be removed.
WARNING: The outer surface of the device, especially in polymer type
components, must not come into contact with any chemical substance, either
on purpose or accidentally. The system fluid and any chemical additives used
within the water piping system – whether for washing or as protection – must
be compatible with the materials used to make the device and with the function
it performs.
WARNING: This product can expose you to chemicals including lead, which
is known to the State of California to cause cancer and birth defects or other
reproductive harm. For more information go to www.P65Warning.ca.gov.
This safety alert symbol will be used in this manual to draw attention to safety related
instructions. When used, the safety alert symbol means ATTENTION! BECOME ALERT!
YOUR SAFETY IS INVOLVED! FAILURE TO FOLLOW THESE INSTRUCTIONS
MAY RESULT IN A SAFETY HAZARD.
SAFETY INSTRUCTION

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AVERTISSEMENT: La surface extérieure de l’appareil, en particulier les
composants de type polymère, ne doit pas entrer en contact avec des
substances chimiques, que ce soit volontairement ou accidentellement. Le
produit et les additifs chimiques utilisés dans les canalisations d’eau - que ce
soit pour le lavage ou la protection - doivent être compatibles avec les matériaux
utilisés pour la fabrication de l’appareil et avec la fonction qu’il remplit.
Ce symbole d’avertissement servira dans ce manuel à attirer l’attention sur la sécurité
concernant instructions. Lorsqu’il est utilisé, ce symbole signifie. ATTENTION! DEVENEZ
ALERTE ! VOTRE SÉCURITÉ EST EN JEU ! NE PAS SUIVRE CES INSTRUCTIONS PEUT
PROVOQUER UN RISQUE DE SECURITE.
Caleffi ne pourra etre tenue responsable des dommages resultant de la corrosion, d’une
mauvaise utilisation ou une mauvaise utilisation des produits.
AVERTISSEMENT: Ce produit peut vous exposer à des produits chimiques
comme le plomb, qui est connu dans l’État de Californie pour causer le
cancer, dommages à la naissance ou autre. Pour plus d’informations rendez-
vous www.P65Warnings.ca.gov.
ATTENTION: Tous les travaux doivent être effectués par du personnel
qualifié formé à la bonne application, installation et maintenance des
systèmes conformément aux codes et règlements locaux.
ATTENTION: Un serrage excessif et une rupture peuvent survenir avec
l’utilisation de Teflon® composés de joint de tuyau. Le Teflon® offre un
pouvoir lubrifiant de sorte que les soins doivent être exercé pour ne pas
trop serrer les joints. Non-respect de ces instructions pourrait entraîner des
dommages matériels et / ou des blessures corporelles.
ATTENTION: Les liquides du système sont sous pression ou de la
température peivent être dangereux. Être sûr que la pression a été réduite
à zéro et la température du système est inférieure à 100 °F (38 °C). Le non-
respect de ces instructions peut entrainer des dommages matériels et/ou des
blessures.
ATTENTION: Nettoyer les tuyaux de tout debris, roille, incrustations, scories
de soudure et d’autres contaminants.Pour un fonctionnement optimal, de l’air
dans le system doit etre retire.
ATTENTION: S’assurer que tous les raccordements sont étanches.
CONSIGNE DE SÉCURITÉ
ATTENTION: Si le valve, n’est pas installe, mis en service et Entretenu
correctement, selon les instructions contenues dans ce manuel, il Peut ne pas
fonctionner correctement et peut mettre en danger l’utilisateur.

Dimensions:
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1” press shown
1-1/4” NPTF
shown
Code A B C D E Wt.
(lb/kg)
NPT female threaded connections
577870A 1¼" 7 5⁄16” 10 15⁄16” 7¼” 5½” 8/7/4.0
577980A 1½” 7 5⁄16” 8 13⁄16” 7¼” 4 3⁄8” 8.4/3.8
NPT male threaded connections
577660A 1” 6¼” 6 13⁄16” 7¼” 3 3⁄8” 4.3/2.0
Sweat connections
577669A 1” 6¼” 6 13⁄16” 7¼” 3 3⁄8” 4.3/2.0
577879A 1¼" 7 5⁄16” 9 7⁄16” 7¼” 4 11⁄16” 8/7/4.0
577989A 1½” 7 5⁄16” 8 9⁄16” 7¼” 4 5⁄16” 8.0/3.6
Press connections*
577666A 1” 6¼” 6 15⁄16” 7¼” 3½” 4.3/2.0
577876A 1¼" 7 5⁄16” 13½” 7¼” 5 15⁄16” 8.9/4.0
577986A 1½” 7 5⁄16” 13 3⁄16” 7¼” 6 5⁄8” 7.8/3.5
*Lay length for press:
size 1”: 5 1⁄16 inch
size 1-1/4”: 9 11⁄16 inch
size 1-1/2”: 8 5⁄16 inch

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Hydraulic characteristics
1 2 3 4 5 6 7 8 9 10 20 30 40 50
.1
.2
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.7
.8
.9
1
.23
.3
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.5
.6
.7
.8
.9
1
1.2
1.4
1.6
1.8
2
2.3
ft. of hdpsid
gpm
.06 .08 .1 .12 .14.16.18.2 .3 .4 .5 .6 .7 .8 .9 2 1.5 2 2.5 3 l/s
.69
.8
.9
1
1.2
1.4
1.6
1.8
2
2.2
2.4
2.6
2.8
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3.5
4
4.5
5
5.5
6
6.9
kPa
1”
∆ P ∆ P
ow rate
1-1/4”
1-1/2”
1-1/4”
1-1/2”
50% bypass
MAX. FLOW RATE
Size 1" 1¼” 1½”
GPM 13 26 26
Cv 12 27 27
Cv 50%
bypass -- 46 46
Safety
If the 577 XF magnetic filter is not installed, commissioned and maintained properly in
accordance with these instructions, it may not operate correctly, and may cause damage to
objects and/or people. Make sure all the connections are watertight.
Assembly:
psi
Assembly and disassembly should always
be conducted while the system is cold and
not pressurized.

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Construction:
Union connections have
Posi-Stop™ o-ring seal.
KNOB TO TURN
THE CLEANING BRUSHES
FILTER MESH
COLLISION ELEMENT
DRYWELL
WITH
MAGNETIC
PULL ROD
PURGE VALVE
INTERNAL
CLEANING
BRUSHES
ROTATING COLLAR
TEE FITTING
MAGNETS
TEE FITTING -
BYPASS OPEN

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Principle of operation:
Water treatment in the system takes place in three separate stages:
1. The water enters at the center of the device and comes into contact with the internal element, which
consists of a set of concentric mesh surfaces. The microparticles are separated by the joint action
of the large chamber and the mesh surfaces.
3. At the device outlet, the water passes through a filter mesh, which retains the residual impurities
by mechanically selecting the particles according to their size. The large filter mesh surface with a
mesh size of 160 µm makes it less prone to clogging.
2. The magnets positioned on the central stem capture and trap the ferrous impurities, down to the
smallest size.

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Separation of ferrous impurities:
The central magnets offer greater efficiency in the collection of ferrous impurities. They are captured
by the strong magnetic field in the central part of the body.
Simply remove the central magnet holder stem from the body to allow the impurities to settle, so that
they can be expelled without disassembling the dirt separator filter.
Construction details:
Dual filtering effect
The Caleffi XF magnetic filter contains two devices that remove impurities.
The first is an internal mesh element, composed of a set of concentric surfaces that cause particles up
to 5µmto precipitate.
The second is an outlet filter with a large surface, which mechanically selects and retains impurities by
size (160µm).

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Adjustable by-pass:
Sizes 1-1/4” and 1-1/2” come with a by-pass to restrict the flow rate passing through the Caleffi
XF magnetic filter and thereby increase the Cv value. However, 0% by-pass is recommended
during commissioning and for the first few weeks of system operation. Then, during the
“constant” phase, the XF magnetic filter can be set to operate with by-pass to achieve a higher
Cv. This reduces the pressure drop and puts less demand on the system circulators.
Additives dosing:
The Caleffi XF magnetic filter can also be used as an access point to inject chemical additives
into the circuit in order to protect the system.
Liquid additives can only be
added if shut-off valves have
been installed downstream
and upstream of the device.
Additives can be injected using
pressurized canisters.
Air vent:
The air that builds up at the top of the
body can be purged by unscrewing
the vent cap with a screwdriver.

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The Caleffi XF magnetic filter is adjustable so that it can
be installed on both horizontal and vertical pipes. Use
the special tightening wrench to screw and unscrew the
locking nut.The functional and fluid-dynamic characteristics
remain unchanged in both configurations.
Turn the tee fitting to adapt the connections for horizontal
or vertical pipes and only install with the body in a vertical
position, in accordance with the flow direction indicated by
the arrow.
Leave a space of at least 5 inches free at the bottom of
the strainer, to allow removal of the central magnet (see
page 11).
Installation on horizontal and vertical pipes:
Installation:
The Caleffi XF magnetic filter must be
installed in accordance with the flow
direction indicated by the arrow on the
tee fitting.
It is preferable to install it upstream of
the chiller or boiler heat exchanger.

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Maintenance and dirt discharge:
The filter mesh cleaning mechanism with special brushes means that the Caleffi XF magnetic filter
does not have to be disassembled for maintenance. It is sufficient to leave the system filling unit in
operation.
1. Switch off the circulator and
remove the central magnet
holder stem. 5 inch clearance is
needed for full removal.
3. Turn the top knob clockwise
to clean the filter mesh with the
special internal brushes. Turn a
few times to clean properly.
2. Drain the impurities with the
filling unit active.
4. After cleaning, align the
indicator on the top knob with
the reference mark on the
device body.
Close the drain valve and start
the system.

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Caleffi North America, Inc.
3883 West Milwaukee Road
Milwaukee, WI 53208
T: 414.238.2360 F: 414.238.2366
1-2024
For Technical Support call 1-414-338-6338, or
email techsupport.us@calef.com
To clean the Caleffi XF magnetic filter with the circulator stationary, there is no need to disassemble the
component because it contains a mechanism with brushes to clean the filter mesh.
Filter mesh: