Xylem-Bell & Gossett 5363-03N-12-003 RL-3 Rolairtrol Air Separator 3" NPT

The Xylem-Bell & Gossett 5363-03N-12-003 is an RL-3 Rolairtrol air separator designed to efficiently remove air from hydronic heating and cooling systems. This 3-inch NPT model utilizes centrifugal force and a coalescing element to capture and eliminate entrained air and microbubbles that can cause system inefficiency, noise, and corrosion.

Key Features:

• 3-inch NPT threaded connections for easy installation in medium to large hydronic systems
• Rolairtrol design creates a low-velocity zone that allows air to separate naturally from system water
• Coalescing media captures microscopic air bubbles and directs them to the automatic air vent
• Cast iron construction for durability and long service life
• Helps improve system efficiency by eliminating air that reduces heat transfer
• Reduces pump cavitation, noise, and corrosion caused by trapped air
• Automatic float-type air vent releases captured air from the system

The RL-3 Rolairtrol is ideal for commercial and industrial hydronic applications including boiler systems, chilled water systems, and closed-loop heating circuits. Proper air elimination is critical for maintaining optimal system performance and protecting equipment from air-related damage.