14
Grant Vortex Oil Boilers
Fig. 5 - De-aeration device system
4.4.5 Tiger Loop system - (See Figs. 5 and 6)
1
When The storage tank is below the burner, an alternative
to a two pipe system can be achieved using a 'Tiger Loop'
type oil deaerator. This effectively removes the air from
the oil supply on a single pipe lift.
2
The de-aerator is connected close to the boiler as a
two pipe system (omitting the non-return valve) as
shown in Fig. 5. Refer to the manufacturers
instructions supplied with the de-aerator.
The de-aerator must be mounted vertically.
4 - GENERAL BOILER INFORMATION
Fig. 4 - Two pipe system
Note: To prevent any possibility of fuel fumes
entering the building, the de-aerator must be fitted
outside.
3
To be used with a de-aerator, the burner must be
fitted with an additional flexible fuel line (a
flexible fuel line (600 mm) and
3
/
8
" to
1
/
4
" BSP
male adaptor are available to purchase from Grant
Engineering (UK) Limited), Part No. RBS104. See
Section 4.4.6.
Filter
Fire
valve
Shut-off
valve
Shut-off valve
Shut-off
valve
See
section 4.4.6
A
Return
Supply
Head A
(m)
Maximum pipe run (m)
0
0.5
1.0
1.5
2.0
3.0
3.5
10mm OD pipe
35
30
25
20
15
8
6
12mm OD pipe
100
100
100
90
70
30
20
Non
return
valve
Fire
valve
sensor
Sludge
valve
Fill
pipe
Vent
pipe
Level
gauge
Fuel
storage
tank
Fire
valve
Tankmaster
See
section 4.4.6
Sludge
valve
Fill
pipe
Vent
pipe
Fuel
storage
tank
De-aeration device
e.g. Tiger Loop
See Fig. 6
Fire
valve
sensor
Return
Supply