Engineered
for Safety.
Designed for
Life.
We develop fire and escape door systems that perform when it matters most — under extreme pressure, in emergencies, for every person in the building.
Safety that
never compromises.
HAPU develops and manufactures pressure-differential-insensitive fire and escape door systems for buildings equipped with smoke pressure systems. Where conventional fire doors fail under high pressure differentials, HAPU doors remain operable — protecting lives and enabling emergency access in every scenario.
Our technology is built on the reality that safety must never be compromised by physics. The integrated pressure compensation valve is a purely mechanical solution — no power required, no sensors to fail, no complexity to maintain.
Company at a Glance
What drives everything we build
Safety First
Every design decision is evaluated against a single question: does this protect lives in a real emergency? No compromise on safety — ever.
Engineering Excellence
Our pressure compensation valve is a purely mechanical innovation — no electronics, no power dependency. Elegantly simple, reliably effective under 450 Pa.
Certified Compliance
Independently tested and certified to the highest German and European standards — DIN EN 12101-6, DIN 18040-1/2, FR 30, RS. Full code compliance, guaranteed.
Universal Access
Barrier-free operation is not an afterthought — it is a design requirement. ≤50 Newton opening force ensures access for all users, including those with reduced mobility.
