# Ilmamäärän mittausperiaate EBM.pdf

- **Document ID:** 61
- **Manufacturer:** Ebm-papst
- **Type:** kokonaismäärä puhallin
- **Folder:** Ebm-papst
- **Tags:** Ebm-papst, Puhallin
- **Page:** https://kirjasto.ilmanvartijat.fi/dokumentti/61/ilmamaaran-mittausperiaate-ebm
- **File:** [Ilmamäärän mittausperiaate EBM.pdf](https://kirjasto.ilmanvartijat.fi/share/cc9f4bd41e5604fced589269e3572e366e018dd61a62f5a5743a40fbdb7f642f/Ilmam%C3%A4%C3%A4r%C3%A4n%20mittausperiaate%20EBM.pdf) — application/pdf, 561008 bytes (547.9 KB)

## Notes

Mittausperiaate

## Content

Airflow determination:

The differential pressure method compares the static pressure
upstream ofthe inlet ring with the static pressure in the inlet ring.

The pressure is tapped at 1 (4) point(s) on the circumference of

The airflow can be calculated from the differential pressure (between the static pressures) according to the following equation:

The customer connection consists of a built-in T-shaped

qy= k-V/Ap

the inlet ring.

hose fitting.

qyin [m3/h] und Ap in [Pa]

If the airflow is to be regulated to remain constant, the inlet pressure must be kept constant:
Ap =q\: ke

k takes the specifi c properties of the inlet ring into account.

Direction of air flow

—t—

0

Technology
k-factors: (for RadiPac inlet rings)

Im3/h kertoimet —

k-factor

ebmpapst

250

280

310

355

400

450

500

76

7

116

148

188

240

281

560

630

710

800

1000

348

438

545

695

1200

EC centrifugal fans - RadiPac - Edition 2021-05

171

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