Overview of Primary Product
Hydraulic characteristics
The maximum recommended speed of the medium at the
device connections is
~
1,2 m/s. The following table gives
the maximum flow rates to meet this condition.
DN
l/min
m
3
/h
3/4”
22,7
1,36
Ø 22 - 3/4” - 1”
22,7
1,36
1”
35,18
2,11
1 1/4”
57,85
3,47
1 1/2”
90,33
5,42
2”
136,6
8,20
DN
l/min
m
3
/h
DN 50
141,20
8,47
DN 65
238,6
14,32
DN 80
361,5
21,69
DN 100
564,8
33,89
DN 125
980,0
58,8
DN 150
1436,6
86,2
DN
Kv (m
3
/h)
3/4”
16,2
Ø 22 - 3/4”
10,0
1”
28,1
1 1/4”
48,8
1 1/2”
63,2
2”
70,0
DN
Kv (m
3
/h)
DN 50
75,0
DN 65
150,0
DN 80
180,0
DN 100
280,0
DN 125
450,0
DN 150
720,0
Insulation
Flanged and weld-end
DISCAL
®
devices are
supplied complete with hot pre-formed shell
insulation.
This system ensures not only perfect thermal
insulation, but also the tightness required to
prevent atmospheric water vapour from
entering the unit. For this reason, this type of
insulation may also be used in cooling water
circuits as it prevents condensation from
forming on the surface of the valve body.
∆
p (mm
w
.
g
.)
2
400
100
10
G (m
3
/h)
20
50
200
0,5
90
80
70
60
12
14
16
18
25
30
35
40
45
120
140
160
180
250
300
350
4
1
0,1
0,2
0,5
0,9
0,8
0,7
0,6
0,12
0,14
0,16
0,18
0,25
0,3
0,35
0,4
0,45
1,2
1,4
1,6
1,8
2,5
3
3,5
2
∆p
(kPa)
10
1
5
0,6
0,7
0,8
0,9
1,2
1,4
1,6
1,8
2,5
3
3,5
4
4,5
6
7
8
9
12
14
16
18
25
40
45
20
30
35
50
3/4"
1"
1 1/4"
1 1/2"
DN 50
DN 65
100
60
70
80
90
DN 80
DN 100
Ø 22
(551002)
3/4"
(551003)
120
140
160
180
200
DN 125
DN 150
2”
Ø 22 - 3/4" - 1”
Vertical version
Ø 22 - 3/4” - 1”
Vertical version
17,0
Installation
DISCAL
®
units may be used in both heating and cooling
systems, to ensure the progressive removal of air which is
continuously formed. The units should preferably be installed
after the boiler and on the pump suction side, as these are
the points where the formation of micro-bubbles is greatest.
DISCAL
®
deaerators must be installed in a vertical position,
and preferably:
- upstream of the pump where, due to the high speed of
the medium and the ensuing drop in pressure, air
micro-bubbles develop more easily.
The flow direction of the medium is not important in
DISCAL
®
devices.
In installation sites where inspection is not possible, it is
recommended that the air vent cap is replaced with a
Caleffi 5620 series hygroscopic safety cap.
CHILLER