Overview of Primary Product

Installation
DISCAL units may be used in heating or 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 air separators for horizontal pipes must be installed
vertically. Flow direction of the DISCAL air separator is bidirectional (flow
in either direction is permitted), except for the 5517 series rotating collar
version. For the 5517 series, the correct flow direction is shown by an
arrow on the T-fitting. Turn the T-fitting by hand to correctly orient it to
install in either horizontal or vertical piping. In installation conditions
where inspection is not possible, it is recommended that the venting
valve cap is replaced by a Caleffi Code R59681 hygroscopic safety vent.
Insulation shells
Insulation shells for brass DISCAL series for
horizontal pipes. These are not designed for the
compact or 517 series rotating collar DISCAL.
Code Size
CBN551005
For ¾" and 1"
CBN551007
For 1¼" and 1½"
CBN551009
For 2"
Insulation
Material: closed cell expanded PE-X
Thickness: 25/64" (10 mm)
Density - inner part: 1.9 lb/ft
3
(30 kg/m
3
)
- outer part: 3.1 lb/ft
3
(50 kg/m
3
)
Thermal conductivity (DIN 52612)
- at 32ºF (0ºC): 0.263 BTU·in/hr·ft
2
·ºF (0.038 W/(m·K)
- at 104ºF (40ºC): 0.312 BTU·in/hr·ft
2
·ºF (0.045 W/(m·K)
Coefficient of resistance to water vapor (DIN 52615): >1,300
Working temperature range: 32–212ºF (0–100ºC)
Accessories
Item Code Description
561402A
Check valve for expansion tanks.
1/2" NPT connections.
R59681
Hydroscopic safety vent cap.
562100
Small anti-vacuum vent cap.
5 9119
Replacement DISCAL air
ventcap.
Optional drain valves, separator sizes 2" - 6", code NA39753 (1" NPT female
with T handle); separator sizes 8" -12", code NA59600 (2" NPT female with
lever).
T
max
250F
P
max 150 psi
T
max
220F
P
max 150 psi
BI-DIRECTIONAL
38466.01
T
max
250F
P
max 150 psi
T
max
220F
P
max 150 psi
BI-DIRECTIONAL
38466.01
T
max
250F
P
max 150 psi
T
max
220F
P
max 150 psi
BI-DIRECTIONAL
38466.01
T
max
250F
P
max 150 psi
T
max
220F
P
max 150 psi
BI-DIRECTIONAL
38466.01
T
max
250F
P
max 150 psi
T
max
220F
P
max 150 psi
BI-DIRECTIONAL
38466.01
T
max
250F
P
max 150 psi
T
max
220F
P
max 150 psi
BI-DIRECTIONAL
38466.01
T
max
250F
P
max 150 psi
T
max
220F
P
max 150 psi
BI-DIRECTIONAL
38466.01
T
max
250F
P
max 150 psi
T
max
220F
P
max 150 psi
BI-DIRECTIONAL
38466.01
T
max
250F
P
max 150 psi
T
max
220F
P
max 150 psi
BI-DIRECTIONAL
38466.01
T
max
250F
P
max 150 psi
T
max
220F
P
max 150 psi
BI-DIRECTIONAL
38466.01
T
max
250F
P
max 150 psi
T
max
220F
P
max 150 psi
BI-DIRECTIONAL
38466.01
T
max
250F
P
max 150 psi
T
max
220F
P
max 150 psi
BI-DIRECTIONAL
38466.01
T
max
250F
P
max 150 psi
T
max
220F
P
max 150 psi
BI-DIRECTIONAL
38466.01
T
max
250F
P
max 150 psi
T
max
220F
P
max 150 psi
BI-DIRECTIONAL
38466.01
T
max
250F
P
max 150 psi
T
max
220F
P
max 150 psi
BI-DIRECTIONAL
38466.01
T
max
250F
P
max 150 psi
T
max
220F
P
max 150 psi
BI-DIRECTIONAL
38466.01