Combined Air (Deaerator) &
Dirt Separator
Dimensions (mm)
Model No.
A
B
C
D
E
F
G
Tested
to
S-AD-50
50
430
300
170
25
380
680
21 bar
S-AD-65
65
430
300
170
25
380
680
21 bar
S-AD-80
80
490
360
220
25
440
800
21 bar
S-AD-100
100
490
360
220
25
440
800
21 bar
S-AD-125
125
630
470
325
25
550
1020
21 bar
S-AD-150
150
630
470
325
25
550
1020
21 bar
S-AD-200
200
810
625
410
50
625
1250
21 bar
S-AD-250
250
880
775
510
50
775
1550
21 bar
S-AD-300
300
1100
875
610
50
875
1750
21 bar
S-AD-350
350
1500
950
770
50
950
1900
21 bar
S-AD-400
400
1500
1125
770
50
1125
2250
21 bar
S-AD-450
450
1750
1125
920
50
1125
225
21 bar
S-AD-500
500
2000
1175
1220
50
1175
2350
21 bar
S-AD-600
600
2000
1325
1220
50
1325
2650
21 bar
Interflex Hose & Bellows Ltd. • www.interflex.co.uk
Ludlow Eco Park • Ludlow • Shropshire • SY8 1FF • United Kingdom
Tel: +44 (0)1584 878500 • Email: supaflex@interflex.co.uk
COMB
INED AIR
& DIRT
SEPARATORS
Dearation
The Solution
The word Dearation describes the
removal of dissolved gases from liquids
such as air from water. When water is
heated or the pressure reduced, gas
microbubbles are released into the
system. Microbubbles can be the cause
of major problems such as pump failure,
corrosion and energy loss.
As an aid to system cleaning, our
range has been developed to remove
potentially damaging particles from both hot
and chilled water systems. It is comprised
of a very fine stainless-steel
Concentrator
capable of stopping debris down to 5
microns. Through simple & cost effective
maintenance the dirt can be flushed away
to removing all the damaging particles in
the system.
Features and Benefits
It is comprised of a very fine stainless-steel Concentrator capable of stopping debris
down to 5 microns
Greatly reduced commissioning times after initial fill
Longer system life (through air and dirt elimination)
Low-pressure drop
Bi-directional flow
Maximum Temperature 110 °C. Higher temperature units available on request.
Tested to 21 Bar
All stainless steel construction
Air collects in the air chamber before being automatically vented
Floating dirt can be removed by opening the valve situated under the air vent.
The same valve is used for releasing air when filling the system
Large collector ensures that flushing is only required now and then
Can be flushed while fully operational (no need to shut down)
An internal stainless steel concentrator to aid removal of air and dirt
Smooth surfaces with Stainless Steel lead to lower friction
Stainless will not degrade in service thanks to its excellent resistance to corrosion
Optional Magnets can also be fitted to remove magnetite, iron and other
magnetic particles.
Stainless Steel is extensively more resistant to oxidation by water and biocides than
carbon steel. Therefore Stainless Steels are not contributing to oxidation, sludges, etc ;
Thermal properties of stainless steel ar e far superior to iron or carbon steel.
Maximum flow rate up to 3m/sec.
Stainless Steel: Safe, Clean, Efficient and Hygienic
Stainless is highly resistant against micro bacteria attacks plus lower bacteria
colonization
Hygienic and cleanable material (Smooth surface internally & externally). Due to their
very high passive film (protecting the surface)
Lower adhesion of deposits (dirt and sludge) with the smooth internals of Stainless
Steels. Sludge & magnetite is washed/ removed from the collection chamber far easier
than the inferior iron / carbon steel
Stability: Stainless Steel is basically inert in water. Leaching of alloying elements is
within safe limits. As a result, they provide better quality water. No turbidity problems.
All resulting in less bacterial slime, low energy consumption, low cleaning costs, good
for conveying wet solids.
Excellent durability and abrasion resistance, as Stainless Steels are resistant to crevice
corrosion, cavitations and wear in pure and polluted waters as well as in atmosphere
(even polluted), they are cost effective for long term use and do not cause
environmental pollution.
Location
Commissioning
This combined unit (model ref SVAD)
must be installed at the hottest part of
the system (before the pumps). In a
heating system this is the main flow
from the boilers.
In a chilled water system the unit must
be located in the return close to the
chiller.
The static head must not exceed 60
metres in a heating system.
Maximum static head must not exceed
40 metres in a chilled water system.
N.B. if the static head is greater than
The separator requires no special
commissioning. All units are fitted with a
fast bleed valve, which should be used
when initially filling the system. The same
valve is used for draining off floating scum
and also prevents the possibility of dirt
clogging the air vent. Maintenance will be
required to remove trapped dirt and
sludge. Opening the ball valve at the
bottom of the unit does this. The valve
may be opened while the system is under
pressure.
Scalding is a danger at high pressures
these figures the efficiency is reduced.
and temperatures. Ensure that the water is
safely piped to drain before opening the
valve.
The system pressure will flush the dirt
out. Leave the valve open until the
collected dirt has been flushed out; repeat
this operation every few days. Once the
water is clear it may be possible to drain
every 6 months or so depending on the
size and age of the system.
Most of the dissolved air will be removed
in a few days. However this may vary
from system to system .In large systems it
may take several weeks.
Dirt separators can only remove dirt that
is circulating
.
Fl
anges
Dr
ain valve
All flanges are drilled to BS4504 PN16
as standard. Other flange ratings are
available on request.
All models are supplied with a ball valve
for draining the collected dirt and sludge.
Interflex Hose & Bellows Ltd. • www.interflex.co.uk
Ludlow Eco Park • Ludlow • Shropshire • SY8 1FF • United Kingdom
Tel: +44 (0)1584 878500 • Email: supaflex@interflex.co.uk
