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;

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;

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.