Brochure

2
18
tech. broch. 01060
551
DISCAL
®
Code Description Pk Lbs USD
NA551995 ¾" sweat 1 4.5 306.60
NA551996 1" sweat 1 4.5 338.70
Air separator for vertical pipes.
Brass body.
Stainless steel fl oat guide pin and linkage.
Stainless steel mesh internal element.
Max. working pressure: 150 psi.
Working temperature range: 32—250°F.
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DISCAL
®
air separators continuously remove entrapped air in hydronic
systems with very high separation effi ciency. The amount of air removed
from a system varies depending on fl uid velocity and system pressures, As
illustrated on the graph below, after just 25 recirculations at the 3.2 feet per
second fl uid velocity, almost all the air artifi cially introduced into the circuit
is eliminated by the DISCAL
®
air separator, with percent removed varying
based on system pressure and fl uid temperature.
The small amount which remains is then gradually eliminated during normal
system operation. In conditions where the fl uid velocity is slower or the
temperature of the medium is higher, the amount of air separated is even
greater.
The DISCAL
®
air separator is
used to continuously remove the
air contained in hydronic circuits
of heating and cooling systems.
The air discharge capacity is
very high. They are capable of
removing automatically all the air
present in the system down to
micro-bubble level with low head
loss due to the special internal
shape of the separator body.
Flow direction of the DISCAL
®
air
separator is bidirectional; fl ow in
either direction is permitted.
0
10
20
30
40
50
60
70
80
90
100
0
100
200
300
400
500
600
700
800
900
1000
1100
1200
Tme
(sec)
10
15
20
25
No.
of
recirc.
14.5 psi
29 psi
43.5 psi
Air introduced - Air removed -(%)
AIR SEPARATORS
FLOW CAPACITY
Size
¾" sweat 1" sweat
Optimal 4.0 f/s
GPM 9 9
Max 10.0 f/s
GPM 20 20
Cv
19 19