AAF

AAF DuraShield SN Gas Turbine Cylindrical Pair Ø405mm – 560mm + 876mm – Synthetic Nanofiber Media – MERV 15 / F9

SKU AAF-DSSN-CYLPAIR-405
AAF DuraShield SN high-efficiency synthetic cartridge filter for gas turbine air intake systems, MERV 15 / F9 sustained efficiency. Quote-only – request pricing and lead time.
Technical documents available — View documents
Cylindrical Pair MERV 15 / F9
Request Quote

AAF DuraShield SN is a high-efficiency synthetic cartridge filter engineered to protect gas turbines with sustained F9 (MERV 15) initial efficiency. It is supplied as a matched primary + secondary cylindrical pair, both at Ø405mm (approx. 16″) outer diameter, with lengths of 560mm (approx. 22″) and 876mm (approx. 34.5″) respectively, installed together in series within the same housing position for higher combined airflow capacity.

The DuraShield SN media is a multilayer construction combining an inorganic depth-loading synthetic with a polymer-based carrier layer that stabilizes the pleats during forming, producing well-formed V-pleat geometry for even particle loading and low obstruction to airflow. The media is hydrophobic and will not swell when saturated from prolonged high humidity, mist, or fog, and the cartridge uses a positive sealing gasket to remove any risk of air bypass.

Technical Specifications

Filter StyleCylindrical Pair (matched primary + secondary)
Outer Diameter (both elements)Ø405mm – approx. 16″
Element Lengths560mm (approx. 22″) + 876mm (approx. 34.5″)
Media GradeDuraShield SN
Media TypeSynthetic (Nanofiber Layer)
Efficiency Class (EN779)F9
MERV Rating (ASHRAE 52.2)MERV 15
Rated Airflow (Pair)3,254 m³/h
Rated Initial Resistance (Pair)315 Pa
End Caps MaterialGalvanized Steel or Stainless Steel (option)
In/Outside LinerGalvanized Steel or Stainless Steel (option)
Gasket MaterialEPDM
SealantPolyurethane
Burst Strength> 6,250 Pa
Max Operating Temperature-40°C to +70°C
Humidity Range0 to 100% Relative Humidity
Compatible TurbinesUniversal — GE, Siemens, MHI, Solar, P&W, Kawasaki frames
Housing CompatibilityAAF and standard gas turbine inlet retaining frames

Cross-Reference

Same approx. 16″ large-diameter cylindrical class used by Koch Filter KF-CYL-12-16-345-OO (ICF-12, MERV 12) in our catalog. As a matched pair rated for 3,254 m³/h, this configuration suits higher-airflow housing positions than the single-element 16″ cylindrical alternative below.