DuroFlow 4504 Positive Displacement Blowers

Description

The DuroFlow 4504 Positive Displacement Blower from Gardner Denver is an industrial-grade positive displacement blower known for its strength, durability, and high efficiency. It supports both pressure and vacuum applications, making it ideal for uses such as pneumatic conveying, wastewater aeration, and industrial vacuum systems.

Technical Specs:

• Maximum Pressure: 15 psi
• Maximum Vacuum: 16 inHg
• Airflow: Up to approx. 403 CFM (depending on variant 4504-VT)
• Speed Range: Max 4,000 RPM; minimum approx. 907 RPM (horizontal) / 1,272 RPM (vertical)
• Port Size: 4″ NPT
• Shaft Diameter: 1.44″
• Lubrication: Dual splash oil lubrication (drive and gear end)
• Maximum Discharge Temp: 350°F; Max ΔT: 275–250°F
• Weight: Approx. 190–200 lbs (86–91 kg)

Features:

• Solid bi-lobe rotors made of ductile iron, strong and resistant to material buildup
• Single-piece cylinder design for better durability and alignment
• Dual splash lubrication extends service life and reduces maintenance intervals
• Oversized bearings handle radial and axial loads, rated for 100,000 hours
• Helical timing gears reduce noise and backlash
• High-quality seals (piston ring and lip seals) minimize air and oil leakage
• Integrated cooling fins for effective heat dissipation
• Flexible mounting – supports both vertical and horizontal installations with Flex-Mount system
• Built under ISO 9001 quality standards and rigorously tested before delivery

Benefit:

• Reliable for heavy-duty use – Strong rotor design minimizes contamination and wear
• High performance – Delivers up to 403 CFM at steady pressure or vacuum
• Low noise operation – Thanks to precision timing gears and porting design
• Long-lasting and easy to maintain – Dual-lubricated, single-piece body, and long-life bearings
• Easy installation – Drop-in ready for existing systems

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