Description

The DFK Duct Fixing Kit includes 2m of 6mm i/d plastic tubing, 2 x pitot tubes and 4 fixing screws.

One Pitot tube should be in the direction of flow to get the higher dynamic pressure and the other against the direction of flow for the static pressure readings. The Differential pressures should be as shown on the table below.

Using the chart to determine the range of the differential pressure sensor:

From the left hand column (velocity, in 1 m/s increments) and the top row (velocity, in 0.1 m/s increments), read across and down to find the corresponding differential pressure.

Examples:
Air velocity is 6.3m/s – Read across from the left to 0.3m/s and down from the top to 6m/s. Where the column and row meet gives a differential pressure of 23.81Pa. Therefore, a differential pressure sensor, with a range of 0 – 25Pa should be selected.

Air velocity is 25.6m/s – Read across from the left to 0.6m/s and down from the top to 25m/s. Where the column and row meet gives a differential pressure of 393.22Pa. Therefore, a differential pressure sensor, with a range of 0 – 400Pa should be selected.

Some compatible products can be found below