Automatic Smoke-Spill Staircase Ductwork

Automatic Smoke-Spill Staircase Ductwork by EKG M&E Sdn Bhd

In the fire safety architecture of Kuala Lumpur and Selangor, the integration of Automatic Smoke-Spill and Staircase Pressurization is the primary mechanical defense against fire. This "interlocked" system ensures that while fresh air is being pumped into escape routes, toxic smoke is simultaneously extracted from the fire zone, creating a balanced, tenable environment for evacuation.

EKG M&E Sdn Bhd specializes in the design and installation of these high-performance ductwork systems, ensuring full compliance with MS 1780, MS 1472, and BOMBA standards.

The Dual-Force Mechanism of Automatic Ductwork

An automatic system eliminates the risk of human delay. It relies on a "Sequence of Operations" triggered instantly by the building’s Fire Alarm Monitoring System (FAMS).

1. Staircase Pressurization (Positive Pressure)

The ductwork delivers fresh air to the stairwell to create a 50 Pa (Pascal) pressure shield.

• The Goal: To physically push back smoke and prevent it from entering the escape route.

• Velocity Wash: The system is engineered to provide an air velocity of 1.0 m/s across open fire doors to "wash away" incoming gases.

2. Smoke-Spill Extraction (Negative Pressure)

Simultaneously, the smoke-spill ductwork extracts hot gases and toxic fumes from the lobbies or corridors adjacent to the stairwell.

• Compartmentation: This prevents smoke from accumulating and building up pressure against the stairwell doors.

• High-Temperature Integrity: Both systems utilize 1.2mm heavy-gauge G.I. ducting with a 2-hour fire rating (FRL 120/120/120).

Critical Operational & Energy Benefits

As a BOMBA-Compliant M&E Specialist, EKG ensures your automatic ductwork supports long-term building efficiency:

• TNB Energy Efficiency (VFD Synchronization):

  Automatic systems utilize Variable Frequency Drives (VFDs). By ensuring the ductwork is Class C Airtight, we eliminate air "bleeding." This allows the fans to hit safety targets at lower frequencies (Hz) during mandatory weekly testing, directly reducing your monthly TNB electricity bill.

• EECA 2024 & Building Compliance:

  Under the Energy Efficiency and Conservation Act (EECA) 2024, mechanical air transport must be optimized for minimal waste. Our precision-sealed fire ducts protect your Building Energy Index (BEI) and ensure your facility is ready for the latest regulatory audits.

• Prevention of "Door-Lock":

  If the extraction and pressurization are not perfectly balanced, fire doors can become impossible to open (exceeding the 110 N limit). EKG calibrates Barometric Relief Dampers and motorized bypasses to ensure the stairwell remains safe for all occupants.

Automatic System Performance Matrix

Why Choose EKG M&E Sdn Bhd?

• Total 3D BIM Coordination: Smoke-spill and pressurization ducts are often the largest conduits in a building. We utilize 3D modeling to route these heavy ducts through crowded ceiling voids with zero "clashes" against sprinklers or structural beams.

• Turnkey BOMBA Submission: We perform the mandatory Smoke Tests, Pressure Differential Tests, and Door Force Verification required for your annual Fire Certificate (FC) renewal.

• Strategic Regional Support: Based in Kuala Lumpur, we provide professional safety audits and installations for Grade-A office towers, luxury condominiums, and hospitals.

Is your building's automatic smoke-control network balanced for survival? Contact EKG M&E Sdn Bhd today for a professional ductwork audit and technical proposal.