Rolairtrol Air Separator For Hot and Chilled Water Systems
The Bell & Gossett Rolairtrol® is a patented centrifugal style air separator for use in any HVAC system. Its 3-to-1 body diameter to nozzle diameter ratio slows the fluid velocity to help entrained air come out of solution, while its tangential inlet and outlet nozzles induces centrifugal fluid flow. This centrifugal flow creates a low pressure vortex in the center of the tank where entrained air can come out of solution and float to the top of the tank where it can easily be removed via an air vent or connection to an expansion tank.
The Rolairtrol is also available with or without a 304 stainless steel strainer to help break the fluid surface tension and remove suspended solids from your system fluid. Contaminants such as air and suspended sediment can lead to diminished heat transfer, higher energy costs, damage to your system components, and increased system noise. By removing them you can lower the cost to operate your system, extend the life of your components, and provide better comfort to your building occupants.
All Rolairtrol models are designed, constructed, inspected, and stamped per Section VIII, Division 1 of the ASME code for 125 psi (862 kPa) maximum working pressure and 350°F (177°C) maximum working temperature. Higher pressures and temperatures are available upon request. Models are available in sizes 2″ through 36″ and are available with NPT (2″ through 3” only), flange, or groove end connections.
Features and Benefits
Removes Entrained Air and Suspended Sediment
- To protect the system against damage
- To provide better heat transfer
- To reduce energy costs
- To eliminate system noise
Centifugal Flow Pattern
- Creates low pressure vortex in center of tank
- Lowers pressure drop through the tank
Models from 2″ – 36″
- Cast iron (2” through 3”) and carbon steel (3” – 36”) bodies
- NPT (2″ & 2½″), flange, or groove connections available
- With or without strainer
-Other body materials available upon request for 3” – 36” models)
-304 stainless steel
-3/16” diameter perforations, 51% open area
Designed, constructed, inspected, and stamped per Section VIII, Division 1 of the ASME Code
- Standard models rated for 125 psi (862 kPa) working pressure. Higher pressures available upon request
SELECTION & SIZING TOOLS
Bell & Gossett offers several useful engineering tools for easy sizing of every area of a building. Simple to navigate software gives you accurate information and up-to-date documentation downloadable straight into your submittal package.
Some tools require a registered account: New User Registration | Existing User Password Help
| Selection Tools: | |
| ESP-DESIGN PLUS |  Bell & Gosset: Multi-Stage, Pressure Booster Packages, Wastewater, Vertical Turbines |
| ESP-PLUS | Bell & Gossett Pump Selection: Circulators, End Suction, Closed-Coupled, Inline, Double Suction |
| ESP-THERMAL | Bell & Gossett Gasket Plate & Frame and, Brazed Plate Heat Exchangers |
| ESP-PARTS | Parts Selection |
| Steam-2000 | Steam 200 Selection |
| Steam-1140 | Series 1140 Steam Service Regulators |
| Water-1140 | Series 1140 Water Service Regulators |
| Steam-Traps | Steam Traps Selection |
| CAD Drawings | CAD Drawings |
| Sizing Tools: | |
| System Syzer | System Sizing |
| System Syzer Psychrometry | System Sizing related to coil cooling |
| Steam-Pipe | Steam Pipe Sizing |
| Steam-Loss | Steam Loss Through Failed Trap |
| Flash-Steam | Flash Steam Sizing |
| Condensate-Pipe | Condensate Pipe Sizing |
Stand-Alone Software
For a Windows Applications (stand-alone) version of ESP-PLUS, please contact your local B&G Representative.
ESP Software Support:
For ESP Software Support, please contact ebusiness.support@xyleminc.com
Bell & Gossett
Bell & Gossett is a leading manufacturer of pumps, valves, heat exchangers, and accessories for plumbing, wastewater, and HVAC—including steam and heat transfer—applications.
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Submittal - Uncategorized
- A-326.10E Rolairtrol Air Separator Grooved less Strainer 3” – 12”
- A-326.9E Rolairtrol Air Separator Grooved with Strainer 3” – 12”
- A-326.8D Rolairtrol Air Separator Flanged less Strainer 3” – 12”
- A-326.7E Rolairtrol Air Separator Flanged with Strainer 3” – 12”
- A-326.6F Rolairtrol Air Separator NPT less Strainer 2” – 3”
- A-326.5F Rolairtrol Air Separator NPT with Strainer 2” – 3”
- A-326.4H Rolairtrol Air Separator Grooved less Strainer 14” – 24”
- A-326.3G Rolairtrol Air Separator Grooved with Strainer 14” – 24”
- A-326.2H Rolairtrol Air Separator Flanged less Strainer 14” – 24”
- A-326.1G Rolairtrol Air Separator Flanged with Strainer 14” – 24”