Bell & Gossett 5363-03F-12-003 Rolairtrol Air Separator, 3″ Flange, RL-3F

Description

Bell & Gossett Rolairtrol Air Separator – Model RL-3F (5363-03F-12-003)

The Bell & Gossett Rolairtrol Air Separator is a proven, high-performance solution for removing entrained air from closed hydronic heating and cooling systems. Designed for demanding commercial and industrial applications, this 3″ flanged model efficiently separates air from circulating water to protect system components, improve heat transfer efficiency, and reduce noise caused by air pockets.

Key Features

• 3″ Flange connections for straightforward integration into existing piping systems
• Maximum flow rate of 190 GPM for high-capacity hydronic applications
• 125 PSIG maximum working pressure for safe operation in pressurized systems
• 350°F maximum operating temperature — suitable for high-temperature hydronic and steam-adjacent systems
• Durable carbon steel shell construction for long service life and structural integrity
• Supplied less strainer — allows flexible configuration based on system requirements
• Rolairtrol tangential flow design promotes centrifugal air separation without restricting flow

Product Specifications

• Model Number: RL-3F
• SKU: 5363-03F-12-003
• Connection Size: 3″ Flange
• Maximum Flow Rate: 190 GPM
• Maximum Working Pressure: 125 PSIG
• Maximum Operating Temperature: 350°F
• Shell Material: Carbon Steel
• Strainer: Not Included (Less Strainer)

Application

Ideal for commercial hydronic heating and cooling systems, the Bell & Gossett RL-3F Rolairtrol Air Separator is engineered to keep systems running at peak efficiency by continuously purging dissolved and free air. Its robust carbon steel construction and high-pressure, high-temperature ratings make it well-suited for boiler rooms, large-scale HVAC installations, and industrial process piping where reliable air elimination is critical.