Air flow probe ZVP / Air flow measurement module MVP

Description
Modifications
Downloads
Determining duct air flow / air velocity inside the air duct

Description

APPLICATION
ZVP probes are designed to measure air flow in air ducts.	Operating on the pitot tube principle, ZVP probes measure the total and static pressure values, which allows calculating air flow.
DESIGN
The special profile of the probe neutralises the influence of back eddies, which can affect the static pressure measurement. The precisely calculated number and positioning of the nozzles gives the highest possible accuracy of 98% already at 1 m/s.	The simple design makes it easy to install the probes yourself. The sealed seat prevents air leaks.

Modifications

Modification name

MVP 150

ZVP 80

ZVP 630

ZVP 450

ZVP 315

MVP 500

MVP 355

ZVP 160

MVP 200

ZVP 100

MVP 100

ZVP 500

ZVP 355

MVP 560

ZVP 200

MVP 400

MVP 250

ZVP 125

MVP 125

ZVP 560

MVP 630

ZVP 400

ZVP 250

MVP 450

MVP 315

ZVP 150

Downloads

Determining duct air flow / air velocity inside the air duct

ZVP probes operate on the pitot tube principle. The total pressure P_total is measured on one of the surfaces of the probe. The static pressure P_stat is measured on the opposite side. The difference between these pressures is velocity pressure P_vel, which is expressed by the following formula:

P_vel. = ½ x ρ x v²

P_vel. = velocity pressure in Pa

ρ – density of the gas (air) in kg/m³

v – velocity in m/s

Air volume can be determined with this formula:

Q = KV x √dP

Q – air volume in l/s

KV – KV value

dP – pressure difference measured by the ZVP probe in Pa

Determining duct air flow

Determining air velocity inside the air duct