Brochure

2
14
The DISCAL
®
air separator uses a coalescing element that consists of
an element of concentric diamond pattern mesh surfaces. This element
creates the whirling movement required to facilitate the release of
micro-bubbles and their adhesion to these surfaces. The bubbles,
fusing with each other, increase in volume until the bouyancy force
overcomes the adhesion force to the surface. They rise to the top of the
unit from where they are released through a fl oat-operated automatic air
release valve.
AIR SEPARATORS
HQRDO@Q@SHNMDEkBHDMBX
DISCAL
®
air separators continuously remove entrained 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 temperature. As
illustrated on the graph, at the 4.0 feet per second fl uid velocity, all the air
artifi cially introduced into the system is gradually eliminated during normal
system operation by the DISCAL
®
air separator. In conditions where the fl uid
velocity is slower or the temperature of the fl uid is higher, the amount of air
separated is even faster.
0
10
20
30
40
50
60
70
80
90
100
0
5
10
15 20 30
40 50 60
90
120
240
Time
(min)
Air introduced - Air removed - (%)
V=4.0 f/s Temp=constant
360 480 600 720
Air separator.
Brass body.
Stainless steel fl oat guide pin and linkage.
Stainless steel mesh internal element.
½" NPT bottom thread.
Max. working pressure: 150 psi.
Working temperature range: 32—250°F.
551
DISCAL
®
Compact
Air separator with ½" service check valve to
mount expansion tank on bottom thread.
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.
551
DISCAL
®
Compact
551
DISCAL
®
Vertical
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.
MAXIMUM FLOW RATE
Size ¾" compact ¾" vertical 1" vertical
GPM 6 6 10
Cv 12 19 19
tech. broch. 01060
tech. broch. 01060
tech. broch. 01060
Code Description Lbs USD
551003A ¾" NPT female 2.0 165.00
551022A ¾" sweat 2.0 159.30
Code Description Lbs USD
551003AC ¾" NPT female 2.1 175.20
551022AC ¾" sweat 2.1 169.50
Code Description Lbs USD
NA551995 ¾" sweat 4.5 352.50
NA551996 1" sweat 4.5 389.40