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Dayton 7AF09 hazardous location exhaust ventilator, spun aluminum housing, roof mount, 22 inch square base

Dayton

Dayton 7AF09 Exhaust Ventilator Trap 230/460V 3 Phase

SKU CH-TRNS-JTABE MPN 7AF09

Hazardous-location exhaust ventilator moves 1880 CFM free air and 1820 CFM at 0.125-In SP, 230/460 V three-phase motor, 13¼-inch backward-incline wheel, roof-mount 22-inch base

  • TypeDrain Components
  • Hazardous-location exhaust rated for Class I Groups C/D and Class II Groups E/F/G
  • Spark-resistant aluminum wheel and rub ring reduce ignition risk
  • Belt-drive downblast design delivers 1880 CFM at zero static pressure
  • Neoprene isolation studs eliminate metal-to-metal contact for quieter operation
  • Dual-voltage 230/460 V three-phase motor runs on 60 Hz power

Hazardous Location Exhaust Ventilator

The Dayton 7AF09 is a centrifugal belt-drive exhaust ventilator built for hazardous locations. It handles air movement in commercial and industrial settings where potentially hazardous particles or fumes are present. The unit carries a motor rated for Class I, Groups C and D and Class II, Groups E, F and G restrictions. It requires a 230/460 V, 3 Phase, 60 Hz power supply.

Sustained Airflow and Temperature Performance

At 0.000-In static pressure the ventilator moves 1880 CFM, and at 0.125-In static pressure it delivers 1820 CFM. Sound output measures 14.5 sones at 0.125-In static pressure measured at 5 ft. The maximum inlet temperature is rated at 180 Deg F, allowing continuous operation in high-heat exhaust streams without thermal derating.

Roof-Mount Construction and Vibration Isolation

The spun aluminum housing features a rolled wind band for stability and a 22 In by 22 In base for roof mounting. A spark-resistant aluminum wheel and rub ring reduce ignition risk. Motor, drive frame and wheel are isolated from the mounting base by independent neoprene studs with no metal-to-metal contact, greatly reducing transmitted vibration and noise. The motor compartment is cooled by ambient airflow.

Highlights

  • Hazardous-location exhaust rated for Class I Groups C/D and Class II Groups E/F/G
  • Spark-resistant aluminum wheel and rub ring reduce ignition risk
  • Belt-drive downblast design delivers 1880 CFM at zero static pressure
  • Neoprene isolation studs eliminate metal-to-metal contact for quieter operation
  • Dual-voltage 230/460 V three-phase motor runs on 60 Hz power

Specifications

TypeDrain Components
BrandDayton
Model7AF09

Questions about this item

How loud is the 14.5 sone rating when the ventilator runs continuously at 0.125-In SP?

At 14.5 sones measured five feet away the unit produces a noticeable but moderate sound level comparable to a busy office; neoprene isolation studs eliminate metal-to-metal contact to keep vibration noise low during all-day operation.

What electrical supply must the site already provide for the 230/460 V 3-phase motor?

A three-phase service at either 230 V or 460 V 60 Hz with a starter and overload protection sized to the motor nameplate; the hazardous-location motor also requires conduit and fittings rated for Class I Groups C D and Class II Groups E F G.

Can the 13 1/4 inch backward-incline wheel and 180 °F inlet limit work with existing galvanised ducting?

Yes — the 22-inch square roof curb matches standard flashing and the aluminum wheel handles air up to 180 °F so typical galvanised or stainless duct of equivalent cross-section connects directly without adapters.

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