Engineered for the
harshest environments on Earth.
From upstream gas pumping stations in the desert to downstream refineries on the coast — AFI D, STD and STEALTHFANS fans deliver reliability, corrosion resistance and low power consumption where economic efficiency and environmental protection are paramount.
A daily challenge for every fan we build.
Oil & Gas installations are usually located in very harsh environments. From upstream gas pumping stations in the desert to downstream refineries on the coast side, those installations represent for our D and STD fans a daily challenge. We provide reliability in hazardous areas, corrosion-proof construction and low power consumption in an industry where economic efficiency and environmental protection continue to be paramount.
Upstream pumping stations and downstream refineries cannot tolerate unplanned downtime. Our fans run continuously in classified zones with proven mechanical integrity.
Coastal refineries, sour gas service and offshore air all attack standard fans. Galvanized hubs, FRP airfoils and stainless armor protect every component for the long haul.
Plants near communities or sensitive ecosystems demand strict acoustic limits. The STEALTHFANS series delivers them without sacrificing efficiency or footprint.
Three fan platforms for every Oil & Gas duty.
From the largest refinery ACHE bays to compressor coolers in remote pumping stations — and the strict acoustic envelope of plants near communities — each series answers a precise operating profile.
D Series — Refinery & LNG Air Cooled Heat Exchangers
Refinery and LNG fractionation banks rely on rows of large ACHE bays running 24/7 in coastal, humid and corrosive atmospheres. The D Series is engineered exactly for this duty: five blade profiles for fine aerodynamic tuning, hot dip galvanized hub disc, FRP airfoils with stainless steel leading-edge protection and operation from −45 °C to +80 °C — the building block of refinery cooling worldwide.
- 5 blade profiles · clockwise & counterclockwise
- Adjustable pitch with conical-bushing fast assembly
- Stainless leading-edge armor for corrosive service
STD Series — Gas pumping stations, compressor coolers & ACHE skids
From desert gas pumping stations to midstream compressor coolers, the STD Series delivers low power consumption and mechanical reliability where access for maintenance is rare and ambient conditions extreme. Adjustable-pitch blades, corrosion-protected hub and airfoils, and a fast-assembly conical bushing make it the working fan of upstream and midstream cooling.
- Optimised for low power consumption
- Corrosion-protected hub and FRP airfoils
- Fast field assembly · adjustable pitch
When the plant sits next to a community, stealthfansTM answers.
The stealthfansTM series is the fruit of a two-year AFI research program and represents the most advanced product in the field of very low noise axial fans for cooling and ventilation equipment. It has resolved the big handicaps that prevented low-noise axial fans from spreading: it is the only series that combines low noise with high efficiency, low weight, reduced axial space requirement and a cost comparable to a regular fan — making it possible for our customers to offer their standard equipment with a very low noise option as standard, not premium.
Better than the average regular-noise fan — power consumption stays low even when operating in low-noise mode.
Lighter than a standard axial fan of equal duty, reducing structural load on existing ACHE and cooling tower decks.
Reduced axial footprint allows STEALTHFANS to be retrofitted into existing equipment with minimal modification.
Comparable in cost to a regular-noise fan — making low-noise the standard option, not the expensive exception.
Engineering details
Three blade profiles of particular shape and width can be combined with the chosen number of blades to bias each installation toward maximum noise reduction or maximum efficiency. Any diameter between 6′ and 40′ is available for clockwise or counterclockwise rotation. The hot dip galvanized hub disc carries an epoxy-coated central boss; airfoils are aluminum alloy or UV-resistant antistatic FRP, with a maintenance-free stainless steel leading-edge sheet for wet cooling tower service. Blade attachments are hot dip galvanized steel and aluminum alloy, with optional polyurethane coating; geomet-protected steel fasteners are standard, with stainless steel available on request. Operating range: −45 °C to +80 °C.
Send us the duty data — we'll send back the reliability you can bank on.
Our engineering team will analyse your existing fans, evaluate corrosion and noise constraints, and outline a retrofit plan tailored to your plant's turnaround windows.