Question #1 - What are the air requirements for the Saturn Air Ring?
Saturn Duplex Flow Air Rings require 125 cfm (3.54 cmm) per inch (25.4 mm) of die diameter at 8 to 12 inches (203 - 305 mm) of static pressure on most LDPE/LLDPE and HDPE applications.

Question #2 - Do the hoses from the distribution manifold to the air ring have to be the same length?
Due to the unique and patented design of the Saturn air ring chamber, it is not critical to ensure all hoses are the same length. However, we still recommend that the hoses be as close in length as possible.

Question #3 - Can I reduce the 4 inch entries at the air ring to 3 inch?
No, this is not recommended. By reducing from 4 inch to 3 inch we increase velocity in the air delivery which in turn can raise the air temperature by as much as 5°F. Reduction of the inlet size can also starve the air ring for air.

Question #4 - What is the proper location to install a damper on my blower?
The proper location to install the damper is on the inlet side of the blower. Installing the damper on the outlet will increase the airflow velocity, creating turbulence. It will also increase the air temperature to the air ring. It is also recommended to install an AC frequency inverter instead of a damper to control the speed of the blower.

Question #5 - With chilled air, what temperature will provide me with the best results?
In typical applications we have found we get best results with an air temperature ranging between 45-50°F.

Question #6 - Should I use 90° elbows on the air ring entries?
No, this is not recommended as putting sharp bends in the delivery hoses can increase velocity and air temperature. We recommend that the hoses have as gradual a transition as possible.

Question #7 - Do I require an insulating pad between my die and my Saturn air ring?
An insulating pad is not required. The Saturn air ring and mounting brackets are designed to provide a 1/8 inch gap between the lower lip and die face.

Question #8 - Can the Saturn air ring sit directly on the surface of the die?
No, it is not recommended to sit the air ring directly on the die. By doing so, it will cause heat transfer out of the die, thus heating up the air ring components and the cooling air resulting in undesirable performance.

Question #9 - Why is there a gap between the die and air ring?
The air rings are manufactured from aluminum and if the air ring sits on the steel die surface, the bottom lip of the air ring would suck heat out of the die in which causes the air ring to heat up. The film gauge will also be affected because of this unperferential drain of heat.