HAPU30
The HAPU30 is HAPU's flagship fire and escape door — engineered specifically for smoke-pressurized stairwells. The integrated pressure-differential compensation valve automatically equalizes pressure differentials of up to 450 Pascal within 0.8 seconds of handle actuation.
Unlike conventional fire doors that require extreme force to open under high pressure, the HAPU door remains fully operable under all conditions — ensuring safe self-rescue for occupants and rapid access for emergency responders.
| Frame Installation Depth | 75–77 mm |
| Door Leaf Depth | 75–77 mm |
| Glazing Bar Depth | 75–77 mm |
| Max. Clear Opening | 1,400 × 2,500 mm |
| Panic Function | DIN EN 179 / EN 1125 |
| Smoke Protection | DIN 18095-1 / EN 1634-3 |
| Fire Protection | DIN 4102-5 / EN 1634-1 |
| Fire Resistance Class | FR 30 (30 min) |
| Smoke Tightness Class | RS |
| Tested Durability | ≥ 200,000 Cycles |
The HAPU system is characterized by rapid and precise pressure regulation that activates immediately upon handle actuation. Within just 0.2 seconds, the integrated pressure-differential compensation valve is triggered and the pressure load is reduced. The required opening force is thereby limited to ≤ 75 N, meeting the escape door requirements of DIN EN 12101-6.
After full pressure equalization, the required opening force further drops to ≤ 50 N within approximately 0.8 seconds — ensuring safe, barrier-free operation for all user groups in accordance with DIN 18040-1 and DIN 18040-2.
The system reliably equalizes pressure differentials of up to 450 Pascal, covering all real-world operating conditions including dynamic pressure fluctuations from door movements, wind loads, stack effects, and thermally induced building pressures.
