In the high-rise commercial and residential towers of KL and PJ, maintaining the correct air pressure is a life-saving requirement. EKG M&E Sdn Bhd specializes in Differential Pressure (DP) Fire Safety Testing, specifically for stairwell and lift lobby pressurization systems. This testing ensures that during a fire, escape routes remain 100% smoke-free by maintaining a "pressure shield" that toxic gases cannot penetrate.
The core principle of a smoke control system is to keep the "Safe Zone" (stairwells) at a higher pressure than the "Fire Zone" (the floor area). We perform rigorous testing to validate three critical engineering benchmarks:
Minimum Pressure Set-Point (50 Pa):
According to BOMBA and UBBL standards, a pressurized stairwell must maintain a minimum differential pressure of 50 Pa relative to the occupied floor when all doors are closed. This ensures that smoke is physically pushed away from the exit.
Door Opening Force Limits:
While high pressure is good for stopping smoke, too much pressure can make fire doors impossible to open for children or the elderly. We test to ensure the force required to open a door does not exceed 110 N, balancing safety with accessibility.
Airflow Velocity (Air Curtain Effect):
When a fire door is opened during evacuation, the pressure drops. We measure the Airflow Velocity (typically 0.75 m/s to 1.0 m/s) through the open doorway to ensure a "piston effect" that keeps smoke from entering the stairs while people are fleeing.
As an HVAC & Clean Air Specialist, we use high-precision instruments to map the pressure profile of your building:
Digital Manometer Mapping:
We install digital pressure sensors on multiple floors to check for "Pressure Leaks" in the stairwell. If the top floor is at 50 Pa but the bottom floor is at 10 Pa, it indicates a leak in the ductwork or poor door seals.
VFD Response Validation:
Modern systems use Variable Frequency Drives (VFDs). We test the "Response Time" of the VFD; when a door opens, the system must ramp up the fan speed within seconds to maintain the air curtain without over-pressurizing the shaft when the door closes.
Fire Alarm Interlock Check:
We trigger the Main Fire Alarm Panel (MFAP) to ensure the pressurization fans activate immediately and that the general office AC fans shut down to prevent smoke from being circulated by the cooling system.
Hot Smoke Visualization (Optional):
For complex atria or lobbies, we perform a non-toxic smoke test. This provides visual proof that the pressure is successfully directing smoke toward the extract fans and away from the exit doors.
| Test Parameter | UBBL / BOMBA Requirement | EKG M&E Standard |
| Stairwell Pressure | 50 Pa (All doors closed). | 50 Pa to 55 Pa (Calibrated). |
| Lift Lobby Pressure | 10 Pa to 15 Pa. | Stable Buffer Zone. |
| Door Opening Force | Max 110 N. | Tested with Force Gauge. |
| Fan Endurance | 250 degrees C for 2 hours. | Certified H-Class Motors. |
Data-Backed Certification: We provide a comprehensive Testing & Commissioning (T&C) Report, including pressure readings for every floor, which is essential for your annual Fire Certificate (FC) renewal.
Turnkey Rectification: If your building fails the pressure test, we don't just leave you with a problem. As an M&E firm, we can immediately repair leaking ducts, replace worn door gaskets, or reprogram your VFD logic.
Klang Valley Strategic Support: Based in Kuala Lumpur, we provide professional DP testing and maintenance for smoke control systems at major commercial towers and industrial plants across the Klang Valley.
Malaysia
