Downflo Evolution Pre-Assembled – DFPRE

Easy to Install Dust Collector Maximizes Production Uptime

The DFPRE series of collectors was designed as a packaged system to answer customer demand for a compact, convenient, and reliable filtration system that can help maximize production uptime.

AST Canada installs the DFPRE series as a packaged system where a compact, convenient, and reliable filtration system can help maximize client production uptime.

DFPRE Overview

DFPRE Small

With their high-efficiency cartridge filters and easy installation, the DFPRE units are a compact and powerful dust collection solution.

DFPRE Large

When sold with an optional HEPA afterfilter, all models achieve an extremely high filtration efficiency of 99.97% on 0.3-micron particles.

Key Features

Easy Installation

Ships pre-assembled for streamlined set-up
Pre-wired fan and controls
Protective junction box included
Compressed air regulator
Low side inlet for convenient duct connection to OEM equipment
Compact design provides for simple handling
Clamp-together Easy-Duct™ Inlet connections that do not require special tools

Flexible & Configurable

With its multitude of configurations and adaptable design, the DFPRE is designed to fit site-specific requirements, making it suitable for a wide range of applications.

Peak Performance

Enhanced airflow design directs incoming air to the inlet dropout plate for reduced filter loading
Enhanced media surface area and pulse cleaning supports long filter life
Increased airflow per cartridge results in a lower cost per CFM

Enhanced Spark Reducing Inlet Mitigation Options

Available with the spark-reducing inlet that, when used as part of an overall fire mitigation strategy, can help reduce the risk of a spark entering the dust collector by directing the airstream through a tortuous path.*

*Intended for use in applications with an increased fire risk and can be used as part of an overall fire mitigation strategy. No single spark mitigation device, including the spark-reducing inlet, can guarantee the elimination of all sparks and ignition sources from entering the dust collector. Please contact your Donaldson sales representative to discuss additional fire mitigation strategies as necessary.

DFPRE Small Series

With their small footprints, high-efficiency cartridge filters, and easy-to-connect ducting, the DFPRE 2 and 3 offer a compact and efficient dust collection solution to help achieve maximum performance and production uptime.

The DFPRE Small (DFPRE 2 & 3) is suitable for combustible dust applications, including:

Applications

Metal Fabrication
Chemical & Petroleum Products
Pharmaceutical
Metal Grinding
Plasma Cutting
Laser Cutting
Welding
Abrasive Blast
Plastic

Features

Multiple integrated fan options to tailor the operating airflow and static pressure to your unique process needs
Side-mounted explosion vents or flameless vents to provide a complete and robust package for a variety of combustible dust applications
15-gallon Sealed Drum Kit offers a simple and cost-effective solution for combustible dust applications

Maximized Performance

Enhanced airflow design directs incoming air to the inlet dropout plate for reduced filter loading
Enhanced media surface area and pulse cleaning adds to filter life
Increased airflow per cartridge results in a lower cost per CFM

DFPRE-2

DFPRE-3

DFPRE Large Series

The DFPRE Large (DFPRE 4, 6 & 9) is suitable for multiple applications, including:

Applications

Metal Fabrication
Laser Cutting
Metal Cutting

Features

Variety of TBI or TRB fan configurations can help tailor the operating airflow and static pressure to your process needs
Optional abrasive-resistant inlet to enhance filter life and reduce wear from abrasive dusts
Secondary HEPA filter option
Pre-wired Delta P and Delta P+ Control options
24V start/stop capability
Remote-mounted control panel options

Maximized Performance

Enhanced airflow design directs incoming air to the inlet dropout plate for reduced filter loading
Enhanced media surface area and pulse cleaning adds to filter life
Increased airflow per cartridge results in a lower cost per CFM

DFPRE 4, 6 & 9 Features

Adaptability

Suitable for a wide range of applications with options including:

HEPA afterfilter to achieve higher filtration efficiency: 99.97% on 0.3 micron particles

Multiple integrated fan options to tailor the operating airflow and static pressure to your unique process needs

Side-mounted explosion vents or flameless vents to provide a complete and robust package for a variety of combustible dust applications

5-gallon Sealed Drum Kit which offers a simple and cost-effective connection for combustible dust applications

Spark Reducing Inlet: When used as part of an overall fire mitigation strategy, it reduces the risk of a spark entering the dust collector by directing the airstream through a tortuous path.*

*Intended for use in applications with an increased fire risk and can be used as part of an overall fire mitigation strategy. No single spark mitigation device, including the Spark Reducing Inlet, can guarantee the elimination of all sparks and ignition sources from entering the dust collector. Please contact your Donaldson sales representative to discuss additional fire mitigation strategies as necessary.

Engineered to Excel

The DFPRE 2 and 3 utilize natural downward airflow for increased filtration performance. By ducting the dirty air into the collector from above the filters, the downward airflow forces heavy particulate from the airstream into the hopper.

The collector’s horizontally mounted filters make filter changeouts easier and even help limit exposure to dust during the process. The filter orientation also contributes to reduced compressed air usage since most of the heavy particulate has already found its way to the containment vessel.

The unit’s pre-wired fan and controls help take you from installation to operation faster, while the timely pulse cleaning adds to filter life and performance.

Industry-Leading Filtration Design

The horizontally mounted triagonal filters – made with industry-leading Ultra-Web® fine fiber technology – have more filter media at the bottom of the cartridge so pulse-cleaning energy directs the ejected dust toward its ultimate destination – the containment vessel.

Ultra-Web filtration technology features a layer of fine fibers (0.2 – 0.3 microns in diameter) on the surface of the media to capture sub-micron contaminants. This makes the dust cake come off easily during automated cleaning cycles, ensuring cleaner air longer.

With its more efficient cartridge filters and advanced downward airflow, the DFPRE 2 and 3 require fewer filters for the same filtration power, resulting in:

Reduced filter replacement costs
Reduced maintenance
Reduced floor space requirements

25% Round Filter

27% Triagonal Filter

IoT Enabled with iCue™ Connected Filtration Service

The DFPRE Dust Collector comes equipped with Donaldson’s iCue™ Connected Filtration Technology. The system tracks your equipment, providing real-time data and analytics to help maximize uptime, increase maintenance efficiency, and manage your operation’s critical compliance data. Our industry professionals, extensive product portfolio, and outstanding service and support can help ensure your Smart Collector will always be a Smart Choice.