Product Overview

1000
Efficiency
50 passages (2 f/s)
50 20 10
40
20
0
60
80
100
Efficiency (%)
Efficiency
50 passages (4 f/s)
Micro
particle
(∆m)
0
5
16 35 63
105 150 250 210 500
Separated quantity
Initial quantity
.
100%
(
)
WORKING ZONE
CARTRIDGE FILTER
SPECIAL FILTER
Y-STRAINERS
DIRTCAL - DIRTMAG
®
®
CHILLER
Tmax 110ϒC
P
max 10 bar
Tmax 105ϒC
P
max 10 bar
BI-DIRECTIONAL
Tmax 110ϒC
P
max 10 bar
Tmax 105ϒC
P
max 10 bar
BI-DIRECTIONAL
T
max
110ϒC
P
max 10 bar
T
max
105ϒC
P
max 10 bar
BI-DIRECTIONAL
T
max
110ϒC
P
max 10 bar
T
max
105ϒC
P
max 10 bar
BI-DIRECTIONAL
Tmax 110ϒC
P
max 10 bar
Tmax 105ϒC
P
max 10 bar
BI-DIRECTIONAL
Tmax 110ϒC
P
max 10 bar
Tmax 105ϒC
P
max 10 bar
BI-DIRECTIONAL
Tmax 110ϒC
P
max 10 bar
Tmax 105ϒC
P
max 10 bar
BI-DIRECTIONAL
Tmax 110ϒC
P
max 10 bar
Tmax 105ϒC
P
max 10 bar
BI-DIRECTIONAL
T
max
110ϒC
P
max 10 bar
T
max
105ϒC
P
max 10 bar
BI-DIRECTIONAL
T
max
110ϒC
P
max 10 bar
T
max
105ϒC
P
max 10 bar
BI-DIRECTIONAL
Tmax 110ϒC
P
max 10 bar
Tmax 105ϒC
P
max 10 bar
BI-DIRECTIONAL
Tmax 110ϒC
P
max 10 bar
Tmax 105ϒC
P
max 10 bar
BI-DIRECTIONAL
T
max
110ϒC
P
max 10 bar
T
max
105ϒC
P
max 10 bar
BI-DIRECTIONAL
T
max
110ϒC
P
max 10 bar
T
max
105ϒC
P
max 10 bar
BI-DIRECTIONAL
T
max
110ϒC
P
max 10 bar
T
max
105ϒC
P
max 10 bar
BI-DIRECTIONAL
T
max
110ϒC
P
max 10 bar
T
max
105ϒC
P
max 10 bar
BI-DIRECTIONAL
CHILLER
Particle separation capacity — dirt separator efficiency Separation efficiency
The capacity for separating the dirt in the medium circulating in the
closed circuits of the hydronic systems depends on three factors:
1. It increases as the size and mass of the dirt particle increases.
Thelarger and heavier dirt particles drop before the lighter ones.
2. It increases as the fluid velocity decreases. When the velocity
decreases, there is a low-velocity-zone inside the dirt separator and
the dirt particles separate more easily.
3. It increases as the number of recirculations increases. The medium
in the circuit, flowing through the dirt separator a number of times
during operation, is subjected to a continuous separation, until the
dirt particles are completely removed.
The special design of the internal mesh element in the Caleffi DIRTCAL
®
and DIRTMAG
®
dirt separator, is able to completely separate the dirt
particles in the circuit down to a minimum particle size of 5 μm (0.2 mil).
The adjacent graph illustrates how these separators quickly remove
nearly all the dirt particles. After only 50 recirculations, approximately
one day of operation, up to 100% is effectively removed from the circuit
for particles of diameter greater than 100 μm (3.9 mil) and on average up
to 80% taking account of the smallest particles. The continual passing
of the medium during normal operation of the system gradually leads to
complete dirt removal.
Installation
The dirt separator must always be installed in a vertical position,
preferably on the return circuit upstream of the boiler (or chiller).
This enables it to intercept dirt particles already present in the circuit,
particularly when it is first started, before they reach the boiler (orchiller).
Flow direction for the DIRTCAL
®
and DIRTMAG
®
dirt separators is
bidirectional, flowing in either direction is permitted.
Reduced head losses
A normal Y strainer performs its function via a metal mesh selected
for the size of the largest particle. The medium therefore has a
consequent initial loss of head that increases as the degree of
clogging increases.
The DIRTCAL
®
and DIRTMAG
®
dirt separators, however, remove the
particles striking the internal mesh element and subsequently drop
into the collection chamber. The consequent head losses are greatly
reduced, up to 25% or less that of a comparable Y-strainer, depending
on mesh size and amount of filtered debris. These head losses not
affected by the amount of dirt collected.