/ Interactive Tool
Opening Force
Calculator
Drag the slider to set any pressure differential and instantly compare the required opening force of a standard fire door versus the HAPU30.
Tool
Opening Force Calculator
300
Pressure Differential (Pa)
0 Pa450 Pa
Door Width
900mm
600 mm1,500 mm
Door Height
2,100mm
1,800 mm3,000 mm
Standard Fire Door
322
N
Required opening force without valve compensation
HAPU30
≤ 50
N
After 0.8s valve equalisation
DIN EN 12101-6 Compliant