The most important feature of any Bubble Trap installation is the selection of the correct size Trap. There are two overriding factors that ultimately dictate which size Trap you require;
- Flow Rate (Q) – Flow Rate of the media entering the Bubble Trap measured in litres per minute (LPM)
- Operating Pressure – Pressure inside the system entering the Bubble Trap
When the above two factors are known a Bubble Trap can easily be selected from the table below;
BUBBLE TRAP -STANDARD SIZES DATA SHEET | |||||||||||||||||||
B/Trap Dia (In) | Rec Fill Vol (Litres) | Operating Pressure | Best Inlet & Outlet Ferrule (Flange) Size | Lid Control (2 ports) Ferrule (Flange) Size | Lid Control (3 ports) Ferrule (Flange) Size | ||||||||||||||
Boro 3.3 Bar (psi) | Acrylic Bar (psi) | 1/2″ | 3/4″ | 1″ | 1 1/2″ | 2″ | 1/2″ | 3/4″ | 1″ | 1 1/2″ | 2″ | 1/2″ | 3/4″ | 1″ | 1 1/2″ | 2″ | |||
3″ | 0.5 | 2 | 7.0(101) | 7.5(109) | – | – | – | – | – | – | – | – | – | – | |||||
0.7 | 3 | – | – | – | – | – | – | – | – | ||||||||||
1 | 4 | – | – | – | – | – | – | – | – | – | |||||||||
4″ | 1 | 4 | 6.0(8.7) | 7.0(102) | – | – | – | – | – | – | – | ||||||||
2 | 8 | – | – | – | – | – | |||||||||||||
3 | 12 | – | – | – | – | – | – | – | |||||||||||
6″ | 2 | 8 | 5.5(80) | 6.0(87) | – | – | – | – | – | ||||||||||
3 | 12 | – | – | – | – | – | – | – | |||||||||||
4 | 16 | – | – | – | – | – | – | ||||||||||||
6 | 24 | ||||||||||||||||||
8 | 32 | ||||||||||||||||||
8″ | 6 | 24 | 5.0(73) | 5.0(73) | |||||||||||||||
8 | 32 | ||||||||||||||||||
10 | 40 | ||||||||||||||||||
12 | 48 | ||||||||||||||||||
10″ | 12 | 48 | 3.5(51) | 4.0(58) | – | – | – | – | – | – | – | – | – | ||||||
16 | 64 | – | – | – | – | – | – | ||||||||||||
20 | 80 | – | – | – | – | – | – | – | – | – |
It should noted that each separate diameter size of Bubble Trap overlaps the previous size. This is particularly useful as the small diameter longer length Bubble Trap will always have a higher pressure rating than its larger sized alternative.
The above data is derived from the underlying principal that the media should remain inside the Bubble Trap for a minimum of 15 seconds (residence time) and is generated from the basic formula;
Rfv = Recommended Fill Volume (Litres)
Q = Flow Rate (Litres per minute )
Note;
If your exact flow is not shown on the table above, the Bubble Trap sized for the nearest flow rate larger / quicker than yours must be selected. This will guarantee the residence time will exceed the 15 second minimum.