Standard Features

Armstrong's line of Dirt & Air Separators (DAS) are designed to eliminate entrained air and suspended dirt particles associated with the start-up and maintenance of hydronic systems. The units incorporate a robust stainless steel coalescing medium which directs dirt particles of all sizes to the collection chamber at the bottom, and allows the air to be released through an air vent at the top.

For applications with high pipe velocity and flow, Armstrong's DASH (High Velocity) unit allows increased flow capacity for the same connection size.

The DAS Series is available with either a welded or removable head, both of which conform to ASME Section VIII, Div. 1. The welded head design is also available, for a price reduction, as a non-ASME rated unit. All models are available with NPT connections up to 4".

• Air and dirt removed with one unit
• Decreased corrosion, pump cavitation and wear of system components
• Bypass/isolation valves, filters and other flow reducing components eliminated
• Less maintenance
• Greater owner satisfaction
• Robust stainless steel coalescing medium
  ASME rated units as standard
• High pressure units and larger than 12" connection sizes available upon request
• Dirt particles can be flush and air vent cleaned/replaced during system operation
• Minimal pressure drop with no fluctuations
• Quiet operation
• Faster air removal than vortex separators
• Velocity independent air removal