Author: Farzin Rahif

A reliable MEP support system carries services safely, preserves access and coordinates with structure, architecture and other trades. Good support design begins before installation and turns project loads into a clear, buildable system.

Start with coordinated information

Collect coordinated drawings, service sizes, elevations, equipment loads, insulation thicknesses, maintenance zones and structural fixing constraints. Identify seismic, vibration, fire-rating and corrosion requirements early.

Define load paths

Each pipe, duct, cable tray and item of equipment must transfer its dead, operating and occasional loads into the structure. Consider point loads, distributed loads, eccentricity and combinations—not only the catalogue capacity of one component.

Select compatible components

Match strut channel, Support Profile, brackets, threaded rod, anchors and accessories to the verified load case and environment. Component compatibility and connection detailing are as important as member strength.

Coordinate and document

Set support spacing, routes and shared frames with clash-free access. Issue drawings, schedules, BOQ and calculation assumptions so procurement and installation use the same design basis.

Verify on site

Check substrate condition, anchor installation, torque, alignment, bracing and field changes. Record deviations and obtain engineering review before accepting substitutions.

Need a project-specific system? review RAFAVENT MEP capabilities or send drawings and load data.

Axial, centrifugal and jet fans move air in different ways. The correct choice depends on airflow, system pressure, installation space, sound limits and the project safety strategy.

Axial fans

Air travels broadly parallel to the shaft. Axial fans deliver high airflow in a compact package and are well suited to general ventilation, cooling, exhaust and roof or wall installations where system resistance is moderate.

Centrifugal fans

Air enters near the shaft and leaves radially. The impeller develops higher pressure, making this family a strong choice for ducted systems, filters, process exhaust and applications with higher resistance.

Jet and smoke fans

Jet fans create thrust to induce air movement through a large space without a conventional full-duct network. They are common in car parks and tunnels. Smoke-control duty requires a coordinated design, verified temperature rating and suitable controls.

Quick comparison

• Need high airflow and compact installation? Start with axial.
• Need higher pressure through ducts or filters? Evaluate centrifugal.
• Need impulse ventilation or smoke control? Develop a jet-fan system strategy.

Final selection should always be checked against the duty point, fan curve, acoustic target and installation conditions.

Compare options: browse the product catalogue or request project selection support.

Industrial fan selection starts with the duty point, not the fan name. Airflow and static pressure define the operating requirement; temperature, contaminants, installation geometry and control strategy determine which construction is safe and efficient.

1. Define the duty point

Record the required airflow in CFM or m³/h and the total static pressure at the design condition. Include duct, filter, coil, damper and terminal losses. A selection without a verified system resistance is only a guess.

2. Match the fan family

• Axial fans suit high airflow at low-to-medium pressure.
• Centrifugal fans are preferred when pressure, filtration or duct resistance is higher.
• Jet and smoke fans serve car parks, tunnels and smoke-control strategies.
• Utility and custom fans cover constrained layouts and project-specific duties.

3. Check the operating envelope

Confirm motor power, efficiency, sound, speed, materials, coating, ambient temperature, service access and applicable smoke-rating requirements. Select near the stable, efficient region of the fan curve and allow a sensible control margin.

4. Submit complete project data

Provide the duty schedule, drawings, electrical supply, environmental conditions and required standards. RAFAVENT can review the data and prepare a project-focused selection.

Next step: explore the product range or send your project specifications.