Description
The Bell & Gossett 5363-06F-12-003 Rolairtrol Air Separator (model RL-6F) is a heavy-duty, high-capacity air elimination solution engineered for large commercial and industrial hydronic heating and cooling systems. Designed to continuously remove entrained air from circulating water systems, the Rolairtrol protects pumps, boilers, and heat exchangers from the damaging effects of air pockets, corrosion, and noise — keeping your system running at peak efficiency.
Constructed with a robust carbon steel shell, this unit is built to withstand the demanding pressures and temperatures found in large-scale hydronic applications. The 6″ flanged connections make installation straightforward in high-flow piping systems, and the less-strainer configuration provides flexibility for installations where a separate strainer is already in place or not required.
Key Specifications
- Model: RL-6F
- SKU: 5363-06F-12-003
- Connection Size: 6″ Flange
- Maximum Flow Rate: 850 GPM
- Maximum Working Pressure: 125 PSIG
- Maximum Operating Temperature: 350°F
- Shell Material: Carbon Steel
- Strainer: Less Strainer (strainer not included)
Features & Benefits
- Continuously removes entrained air from hydronic systems to prevent noise, corrosion, and efficiency loss
- High-capacity 850 GPM flow rating suits large commercial and industrial applications
- 6″ flanged connections for easy integration into large-diameter piping systems
- 125 PSIG maximum working pressure for reliable performance in high-pressure systems
- 350°F maximum operating temperature handles high-temperature heating applications
- Carbon steel shell construction provides long-lasting durability and strength
- Less-strainer design offers installation flexibility where a separate strainer is utilized
- Trusted Bell & Gossett Rolairtrol technology — an industry standard in hydronic air separation
Ideal Applications
- Large commercial and industrial hydronic heating systems
- Chilled water and hot water distribution systems
- High-flow central plant piping
- Boiler and heat exchanger protection







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