Overview

Sterile air is used to protect products and processes from particulate, organic contamination and microbial contamination. Ensuring you have the right sterile air filtration system in place is critical to food and beverage production — not only to prevent contamination and protect product quality, but also to ensure regulatory compliance. 

Donaldson's Sterile Air Systems provide comprehensive solutions for ensuring the purity of sterile air and sterile gas in critical applications, particularly within the food and beverage industry.


Sterile Air Manifolds

Donaldson’s Sterile Air Manifolds offer a fully integrated air filtration system that reduces complexity in any manufacturing environment where food contact compressed air is required.

Our Sterile Air Manifolds provide a comprehensive plug-and-play solution for delivering sterile gas and incorporates Donaldson’s LifeTec™ P-SRF compressed air sterile filter technology to ensure consistent filtration performance.

The manifold provides a ready-to-install sterile air solution with air housing assemblies, condensate traps, lockable isolation and throttling valves, upstream and downstream pressure gauges, a sanitary check valve, and a steam inlet leg for sterilization-in-place (SIP) of the manifold.

An optional steam sterilization connection can be used to link the Donaldson Sterile Air Manifold and Donaldson Steam Manifold for sterilization-in-place (SIP) of the sterile filter. A mounting stand is available as an optional accessory to support the Donaldson Sterile Air Manifold in your process line.

Key Features

  • Drop-in-place manifold design
  • Helps enable ISO 8573-compliant air quality
  • Ready to ship and available quickly 
  • Ergonomic housing heights for easy servicing  
  • Low differential pressure drop 
  • High flow rate capabilities 
  • Featuring the proven technology of Donaldson’s P-SRF sterile filters 
  • Optional steam sterilization add-on 

Applications

  • Filtration and purification of compressed air and technical sterile gases
  • Any application where sterile compressed air is required
  • Static or dynamic tank venting
  • Aseptic storage or packaging
  • Product push
  • Cooling or conveying air

P-SLF Sterile Air System

The P-SLF sterile air system is a multi-stage air ventilation system that provides a robust solution for delivering sterile air at low pressure and high volume in critical processed food and beverage applications.

Sterile air creates aseptic conditions in pressurized and open storage or mixing tanks and in filling machines. A continuous exchange of the air cushion and a slight overpressure in this critical area reduces the risk of contamination with unfiltered ambient air.

This compact filter cartridge system includes a pre-filter and a compressed air sterile filter, combined with a low-pressure blower in a mobile design. Multiple sizes are available, with flow rates ranging from 30 to 910 m³/h (17 to 536 scfm), to meet diverse production needs.

Features

  • Mobile unit for sterile filtration of ambient air
  • Volume flows up to 900 m³/h / 530 scfm
  • Sterilizable with saturated steam

Applications

  • Sterile air supply for ingredient tanks, storage tanks, or processing tanks
  • Sterile air supply for aseptic filling machines