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TURNING VANES 101
Consulting engineers have been specifying Aero/Dyne turning vanes by name for more than 40 years, because of its unmatched reliability and performance.

Did you know that if you don't specify an engineered turning vane product, they usually are made by contractors in their sheet metal shops?  The problem with this is they have questionable pressure drops and noise levels, collect lint and dust, and can become detached from their low-cost dimple supports. 

AERO-DYNE VANES
Aero-dyne HEP vanes are aerodynamically designed and laboratory tested and certified.   Engineers can count on the low pressure drop, low sound, acoustical performance, and long-term structural performance of these vanes.  The design geometry adapts perfectly to all duct sizes, eliminating the need for different vane sizes in the system.

H-E-P turning vanes are designed specifically for use in rectangular duct turns with velocities between 1500 and 2500 fpm

SUMMARY OF ENGINEERING AND BUILDING OWNER BENEFITS

• Acoustical Performance
  The HEP turning vane does not exceed 54 decibels in band 4 at 2000 fpm (24"x24" duct size) - as required by many engineers. The extended trailing edge maintains smooth airflow with much less turbulence and backpressure.  Helps achieve a quiet environment in the classroom, museum, performing arts center, or other facility where acoustical performance is a priority.
• IAQ: Cleaner Duct Environment
  The HEP turning vane is engineered with a smoothly-rounded entry nose and thin extended trailing edge.  This design prevents lint, dust or debris from collecting for the life of the system.   Extremely important for healthcare, educational, correctional, institutional, laboratories, and other facilities where duct cleanliness and low maintenance is a priority.
• Low Pressure drop
  The true airfoil contour design that provides velocity distribution of greatest uniformity resulting in very low turbulence and pressure drop.
• Reduced System Effect
  When installed before and after fans or air handlers, HEP vanes reduce turbulence and backpressure, reducing system effect (pressure drop added by turbulence immediately upstream or downstream of fan).
• Structurally Reliable
  Unlike many single blade turning vanes, the HEP airfoil vane  is formed from one piece of galvanized hot dipped prime carbon steel provides a permanent rattle proof assembly.  Achieve for a perfect stay put-fit.  No rattle – No detaching - No maintenance.

The H-E-P Airfoil Design gives superior energy savings, low impact losses, low pressure drop, with dramatically reduced sound power levels

No other product on the market today provides comparable quality, structural integrity and performance.

EMAIL US FOR A FREE ENGINEERS KIT:
 Suggested Specifications (.doc format) Section 23330
 Turning Vane CAD Detail (dwg) (for your master CAD detail library or drawings)
 Turning Vane CAD Detail - Single Vane  (pdf)

Points to keep in mind

VANES:
No. 26 gauge hot-dipped galvanized steel, furnished in 10-foot lengths.

SIDE RAIL:
No. 24 gauge hot-dipped galvanized steel, furnished in 100-foot coils with fasteners. Assembly slots are located on design center spacing of 2.4 inches.

Suggested Specifications:
Download our Engineer's kit for specifications written in Masterspec format (Section 23330)  EMAIL US

We also recommend you download details so the contractor can see the type of airfoil blade you are specifying and how it is installed in the elbow.  This is also in our engineer's kit.

Project submittal forms are available; proposed substitution shall include independent performance test data for pressure loss and generated sound power levels.