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.
Expansion, compression and diaphragm tanks for proper system pressurization in hydronic heating and potable water (plumbing) systems.
The compression tank on a closed hydronic system serves a very important function in providing adequate pressurization under all operating conditions. Above all, a compression tank must be absolutely air tight. BG tanks are available nationally in ASME construction, are of black steel construction, thoroughly tested and guaranteed leak proof. Gauge glass tapping are included as standard.
Vents / Accessories