In industrial warehouses, factories, and shopping malls across KL and PJ, managing heat and smoke during the initial stages of a fire is a life-saving requirement. EKG M&E Sdn Bhd provides Automatic Smoke Vents (ASV), also known as Natural Smoke and Heat Exhaust Ventilators (NSHEVs). These roof-mounted systems are designed to open automatically during a fire, allowing hot gases and smoke to escape via buoyancy, keeping the floor level clear for evacuation.
Unlike mechanical fans that require electricity, ASVs rely on the "Stack Effect." As a fire develops, hot smoke rises and collects at the ceiling. By opening a vent at the highest point, the smoke is exhausted naturally, which prevents "flashover"—the point where every combustible surface in a room ignites simultaneously due to radiant heat.
Thermal Release Mechanisms:
Each vent is equipped with a "Fusible Link" or a high-temperature bulb. When the ambient temperature reaches a set point (typically 68 to 93 degrees Celsius), the link melts, and a heavy-duty gas spring or actuator forces the vent open.
Fire Alarm Integration:
For modern commercial buildings in the Klang Valley, we interlock ASVs with the Main Fire Alarm Panel (MFAP). Upon a smoke detector signal, a 24V DC signal triggers an electric actuator to open the vents before the heat even reaches the ceiling.
Smoke Reservoir Design:
In large open-plan factories, we install "Smoke Curtains" alongside the vents. This creates a "Reservoir" that traps smoke in a specific roof bay, allowing the vent in that zone to exhaust it more efficiently without letting the smoke spread across the entire facility.
Dual-Purpose Daylighting and Ventilation:
Many of our ASV models feature translucent polycarbonate lids. This allows them to function as skylights during normal operation, reducing your facility's lighting energy costs while providing the option for natural "Daily Ventilation" to lower indoor temperatures.
We ensure all installations meet the Uniform Building By-Laws (UBBL) and are ready for BOMBA certification:
| Feature | Requirement | EKG M&E Performance |
| Opening Angle | Minimum 90 to 140 degrees. | Full-stroke actuators for maximum free area. |
| Wind Load Rating | Must open against wind pressure. | High-torque gas springs (Class WL 1500). |
| Reliability | Minimum 1,000 cycles (RE 1000). | Industrial-grade hinges and weather seals. |
| Fail-Safe | Must open even if power is lost. | Spring-loaded or battery-backed systems. |
HVAC & Clean Air Specialist: We ensure your smoke vents are positioned strategically relative to your AHU intakes. This prevents the "Short-Circuiting" of smoke, where exhausted smoke is accidentally sucked back into the building's air conditioning system.
Weather-Proof Integrity: In Malaysia’s heavy tropical rain, a leaking roof vent is a major liability. We use high-quality EPDM gaskets and specialized flashing to ensure your vents remain 100% watertight for years.
Klang Valley Strategic Support: Based in Kuala Lumpur, we provide annual preventive maintenance, link-testing, and lubrication for smoke vents at major logistics hubs and industrial plants across the Klang Valley.
Malaysia
