Terminal unit flex ducts

Flexible Ducting for Terminal Units by EKG (Malaysia) Sdn Bhd

In 2026, the connection between Terminal Units (such as VAV boxes, Fan Coil Units, and CRAC units) and their respective diffusers is a high-precision mechanical interface. Under the Energy Efficiency and Conservation Act (EECA) 2024, these terminal air paths are critical focal points for building energy intensity audits in Kuala Lumpur and Selangor. For a facility to maintain a low Building Energy Index (BEI), flexible ducting must be installed to eliminate "System Effect" losses and thermal leakage.

EKG (Malaysia) Sdn Bhd utilizes 34 years of mechanical engineering expertise to provide instrument-verified flexible ducting for terminal units. We focus on achieving SMACNA Class C airtightness and ensuring your terminal air path is biologically safe in compliance with DOSH 2026 IAQ standards.

1. The Engineering Logic: Protecting the Terminal "Control Loop"

Terminal units are designed to modulate airflow based on zone demand. If the flexible ducting at the discharge is unoptimized, the energy-saving logic of the Variable Air Volume (VAV) or Fan Coil Unit (FCU) is compromised.

• Radius-Guided Efficiency: A flex duct that is sharply bent at the terminal discharge can increase local static resistance by up to 80%. We utilize Rigid Elbow Supports to ensure air enters the diffuser in a smooth, linear profile. This reduces the Specific Fan Power (SFP), allowing your central plant to operate at its peak efficiency point.

• Hermetic Terminal Sealing: To prevent "Pressure Bleed" (cooled air leaking into the ceiling plenum), we utilize a Dual-Clamping Protocol. This involves a mastic-sealed inner core secured by stainless steel bands, ensuring 100% of the air measured by the terminal unit actually reaches the occupant.

• Acoustic Decoupling: Flexible ducts act as natural vibration isolators. By utilizing Acoustically Dampened Flex, we decouple the mechanical noise of the terminal unit damper or fan from the ceiling grid, providing a silent, professional environment for Grade-A offices.

2. Specialized Terminal Unit Protocols

To meet SIRIM, MOH, and BOMBA 2026 benchmarks, EKG utilizes a rigorous "High-Integrity" handshake:

A. R-6.0 to R-8.0 Thermal Defense

Terminal units often handle the coldest air in the system. In Malaysia's high-humidity ceiling voids, this makes flex connections prone to "sweating." We utilize High-Density R-6.0 or R-8.0 Insulation with a reinforced vapor jacket to keep the surface temperature above the dew point, preventing ceiling damage and mold.

B. Antimicrobial "Silver-Ion" Liners

To satisfy the latest DOSH 2026 indoor air quality audits, we install flex ducts with Silver-Ion Antimicrobial Coated inner cores. These mirror-smooth liners inhibit the growth of bacteria and fungi inside the duct, ensuring the air reaching your team is sterile and odor-free.

C. Smart Length & Sag Management

To prevent energy-wasting "snake" runs, we strictly adhere to a maximum 2.5-meter length per terminal connection. We utilize Wide-Saddle Support Cradles to prevent "pinching" or sagging, ensuring the duct maintains its full circular cross-section and aerodynamic efficiency.

3. Compliance & Performance Matrix

4. Technical Validation for 2026 Audits

• Audit-Ready Documentation: Under the EECA 2024, technical evidence of air distribution efficiency is mandatory. We provide on-site Testing, Adjusting, and Balancing (TAB) and Duct Leakage Testing (DLT) reports to serve as proof of performance for your annual energy audit.

• Operational Cost Reduction: By eliminating air bypass and friction at the "Last Mile," we ensure your terminal units and supply fans operate at their absolute minimum required speed, reducing monthly operational overhead.

• Asset Protection: Our "Dry-Path" insulation protocols prevent the condensation that leads to structural damage and mold, protecting the long-term value of your property and the health of its occupants.

Why Choose EKG (Malaysia) Sdn Bhd?

• 34 Years of Technical Depth: Based in the Klang Valley, we understand the specific interactions between mechanical pressure and tropical humidity.

• Turnkey Engineering: From initial installation to system replacement, we provide full technical validation to ensure your facility meets design specifications.

• BIM & Digital Twin Integration: We provide full 3D as-built data for your terminal connections, allowing for seamless integration into modern facility management software.

Is your terminal unit air delivery meeting its design potential, or is it a hidden source of energy waste? Contact EKG (Malaysia) Sdn Bhd today for a technical assessment of your terminal unit flexible ducting.