Accessories, Maintenance Units for Compressed Air Systems

For safe, efficient, and clean compressed air

The ARO®-FLO series can reduce operating costs and extend the service life of air-powered systems. Solid particles can be efficiently removed from compressed air lines using ARO® maintenance units. The top choice for applications with high flow rates.

Advantages

  • High performance:
    Air flows through ARO®-FLO air filters and regulators more easily than through most other air filtration units.
  • Modular design: An
    ideal complement to all ARO® accessories for the respective size ranges.
  • Safety:
    The entire Flo accessory line is equipped with integrated safety features.

ARO® maintenance units are available as

  • Filters
  • Oiler
  • Pressure regulators
  • Filter-regulator (“piggyback”)
  • Filter-Regulator-Oiler Combinations (2-piece and 3-piece)
  • Available in 1/4" and 1" nominal sizes

Features

  • Solid construction
  • Virtually diffusion-tight due to its thick-walled construction
  • Durable even at high pressures thanks to composite membranes
  • Version with flap valve available
  • Very long service life even with abrasive media
  • Quiet / low-noise
  • Composite diaphragm with integrated metal core
  • Easily accessible control valve without seals

Advantages

  • Protected against dry running and overload
  • Self-priming
  • Resistant to solids
  • Infinitely adjustable via air flow
  • Very high chemical resistance
  • Designed for high-temperature applications
  • Long diaphragm service life due to short stroke
  • FDA-certified versions available

Media Examples

  • Highly Concentrated Sodium Hypochlorite
  • Chlorine-containing media
  • Wastewater from industrial hardening machines
  • Solvent mixtures
  • Pickling baths

Technical Specifications

Feature Specification
Flow Rate max. 30 l/min¹
Delivery pressure Max. 7 bar
Operating pressure max. 7 bar
Dry suction head max. 3 m¹
Suction head (with product) max. 8 m¹
Solid particle size max. 2 mm
Viscosity min. 1 mPas – max. 15,000 mPas²
Housing materials Polypropylene, conductive polypropylene, PTFE, conductive PTFE
Media / Fluids Abrasive media, highly flammable media, media containing solid particles, viscous media
Pressure port connection G 3/8
Suction connection G 3/8

1 Depends on pump model, operating pressure, and fluid2
Depends on the fluid’s flow characteristics

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